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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
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+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
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+      
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
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+</div>
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
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+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+      
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+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
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+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+    
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+      
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+      
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+      
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+      
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+      
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     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+      
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
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+</div>
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mersher-quick-start-advance.md">在Github上编辑此页</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mesher-quick-start-advance.md">在Github上编辑此页</a></li>
         <li><a href="/cn/developers/submit-codes/">代码提交指南</a></li>
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mersher-distributed-tracing.md">在Github上编辑此页</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mesher-distributed-tracing.md">在Github上编辑此页</a></li>
         <li><a href="/cn/developers/submit-codes/">代码提交指南</a></li>
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mersher-flow-control.md">在Github上编辑此页</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mesher-flow-control.md">在Github上编辑此页</a></li>
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mersher-load-balance.md">在Github上编辑此页</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mesher-load-balance.md">在Github上编辑此页</a></li>
         <li><a href="/cn/developers/submit-codes/">代码提交指南</a></li>
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mersher-service-management.md">在Github上编辑此页</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mesher-service-management.md">在Github上编辑此页</a></li>
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mersher-quick-start.md">在Github上编辑此页</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/cn/mesher-quick-start.md">在Github上编辑此页</a></li>
         <li><a href="/cn/developers/submit-codes/">代码提交指南</a></li>
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     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+      
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
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+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
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         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
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         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
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+      
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
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+  2 分钟 阅读
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
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+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+    <meta itemprop="description" content="使用ServiceComb客户端轻松调用ServiceCenter">
+    <meta itemprop="datePublished" content="December 09, 2019">
+    <meta itemprop="dateModified" content="December 09, 2019">
+
+    <div class="page__inner-wrap">
+      
+        
+          <header>
+            <h1 class="page__title" itemprop="headline">使用ServiceComb客户端轻松调用ServiceCenter
+</h1>
+            
+              <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 分钟 阅读
+
+</p>
+            
+          </header>
+        
+      
+
+      <section class="page__content" itemprop="text">
+        <h1 id="使用servicecomb客户端轻松调用servicecenter">使用ServiceComb客户端轻松调用ServiceCenter</h1>
+
+<h2 id="1-问题背景">1. 问题/背景</h2>
+<p>在微服务架构中，服务注册中心是必不可少的组件，提供服务注册与管理的能力。目前使用ServiceComb服用中心的java微服务开发者，不仅需要写微服务业务代码，还要写客户端代码去调用ServiceCenter的openAPI。开发者首先需要熟悉ServiceCenter的openAPI文档，然后代码实现http客户端用于发起请求和接收响应，并绑定ServiceCenter配置参数，最后代码实现对服务中心API的调用，才能使用上ServiceCenter。为了简单化开发者使用ServiceCenter，ServiceCenter客户端实现了上述步骤。开发者只需要添加客户端jar包调用API就能轻松使用ServiceCenter，不需要过多关注openAPI文档、不需要写http客户端层代码。使用ServiceComb客户端，开发者可以轻松调用ServiceCenter，更专注于写微服务业务代码。<br />
+了解更多ServiceComb-Service-Center：<a href="https://docs.servicecomb.io/service-center/zh_CN/index.html">https://docs.servicecomb.io/service-center/zh_CN/index.html</a><br />
+了解更多ServiceCenter客户端：<a href="https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client">https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client</a><br />
+<img src="/assets/images/client/sc-client.jpg" alt="service-center-client-design" /></p>
+
+<h2 id="2-客户端原理及关键代码解读">2. 客户端原理及关键代码解读</h2>
+<p>2.1  基于httpClient设计ServiceCenter客户端</p>
+<ul>
+  <li>
+    <p>客户端发起请求和接收响应。客户端选择httpclient作为底层组件，用于实际发起请求和接收响应，并对请求和响应类进行了封装。代码中get方法对应发起GET请求，调用doRequest方法首先添加服务注册中心信息到封装过的httpRequest请求头部，再基于httpclient组件发起实际的http请求，最后将请求响应结果转化为封装过的httpResponse对象返回。</p>
+
+    <div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c1">//make GET request</span>
+<span class="nd">@Override</span>
+<span class="kd">public</span> <span class="nc">HttpResponse</span> <span class="nf">get</span><span class="o">(</span><span class="nc">HttpRequest</span> <span class="n">request</span><span class="o">)</span> <span class="kd">throws</span> <span class="nc">IOException</span> <span class="o">{</span>
+    <span class="n">request</span><span class="o">.</span><span class="na">setMethod</span><span class="o">(</span><span class="nc">HttpRequest</span><span class="o">.</span><span class="na">GET</span><span class="o">);</span>
+    <span class="k">return</span> <span class="nf">doRequest</span><span class="o">(</span><span class="n">request</span><span class="o">);</span>
+<span class="o">}</span>
+<span class="o">......</span>
+   
+<span class="c1">//make http request with httpClient component</span>
+<span class="kd">public</span> <span class="nc">HttpResponse</span> <span class="nf">doRequest</span><span class="o">(</span><span class="nc">HttpRequest</span> <span class="n">httpRequest</span><span class="o">)</span> <span class="kd">throws</span> <span class="nc">IOException</span> <span class="o">{</span>
+    <span class="c1">//add cse-serviceregistry-client header to identify client</span>
+    <span class="n">httpRequest</span><span class="o">.</span><span class="na">addHeader</span><span class="o">(</span><span class="no">HEADER_CONTENT_TYPE</span><span class="o">,</span> <span class="s">"application/json"</span><span class="o">);</span>
+    <span class="n">httpRequest</span><span class="o">.</span><span class="na">addHeader</span><span class="o">(</span><span class="no">HEADER_USER_AGENT</span><span class="o">,</span> <span class="s">"cse-serviceregistry-client/1.0.0"</span><span class="o">);</span>
+        
+    <span class="k">if</span> <span class="o">(</span><span class="n">globalHeaders</span> <span class="o">!=</span> <span class="kc">null</span><span class="o">)</span> <span class="o">{</span>
+    <span class="n">globalHeaders</span><span class="o">.</span><span class="na">forEach</span><span class="o">(</span><span class="nl">httpRequest:</span><span class="o">:</span><span class="n">addHeader</span><span class="o">);</span>
+    <span class="o">}</span>
+        
+    <span class="c1">//make http request</span>
+    <span class="n">org</span><span class="o">.</span><span class="na">apache</span><span class="o">.</span><span class="na">http</span><span class="o">.</span><span class="na">HttpResponse</span> <span class="n">response</span> <span class="o">=</span> <span class="n">httpClient</span><span class="o">.</span><span class="na">execute</span><span class="o">(</span><span class="n">httpRequest</span><span class="o">.</span><span class="na">getRealRequest</span><span class="o">());</span>
+        
+    <span class="kt">int</span> <span class="n">statusCode</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="na">getStatusLine</span><span class="o">().</span><span class="na">getStatusCode</span><span class="o">();</span>
+    <span class="nc">String</span> <span class="n">messgae</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="na">getStatusLine</span><span class="o">().</span><span class="na">getReasonPhrase</span><span class="o">();</span>
+    <span class="nc">String</span> <span class="n">context</span> <span class="o">=</span> <span class="nc">EntityUtils</span><span class="o">.</span><span class="na">toString</span><span class="o">(</span><span class="n">response</span><span class="o">.</span><span class="na">getEntity</span><span class="o">(),</span> <span class="s">"UTF-8"</span><span class="o">);</span>
+        
+    <span class="k">return</span> <span class="k">new</span> <span class="nf">HttpResponse</span><span class="o">(</span><span class="n">statusCode</span><span class="o">,</span> <span class="n">messgae</span><span class="o">,</span> <span class="n">context</span><span class="o">);</span>
+<span class="o">}</span>
+</code></pre></div>    </div>
+  </li>
+  <li>
+    <p>客户端支持定制化服务中心配置参数。代码中看到，客户端支持开发者定制服务中心IP，端口，项目名称，租户名称，导入TLSConfig和新增请求头，并通过客户端的Builder方法注入配置。TLSConfig为客户端TLS认证配置类，给客户端导入TLS证书配置，即可开启客户端双向认证模式。</p>
+
+    <div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code>  <span class="cm">/**
+   * Customized host, port, projectName, tenantName, TLSConf, headers and any one parameter can be null.
+   */</span>
+  <span class="kd">public</span> <span class="nf">ServiceCenterClient</span><span class="o">(</span><span class="nc">String</span> <span class="n">host</span><span class="o">,</span> <span class="kt">int</span> <span class="n">port</span><span class="o">,</span> <span class="nc">String</span> <span class="n">projectName</span><span class="o">,</span> <span class="nc">String</span> <span class="n">tenantName</span><span class="o">,</span> <span class="nc">TLSConfig</span> <span class="n">tlsConfig</span><span class="o">,</span>
+    <span class="nc">Map</span><span class="o">&lt;</span><span class="nc">String</span><span class="o">,</span> <span class="nc">String</span><span class="o">&gt;</span> <span class="n">extraGlobalHeaders</span><span class="o">)</span> <span class="o">{</span>
+      <span class="nc">HttpTransport</span> <span class="n">httpTransport</span> <span class="o">=</span> <span class="nc">HttpTransportFactory</span><span class="o">.</span><span class="na">getDefaultHttpTransport</span><span class="o">();</span>
+      <span class="k">if</span> <span class="o">(</span><span class="n">tlsConfig</span> <span class="o">!=</span> <span class="kc">null</span><span class="o">)</span> <span class="o">{</span>
+        <span class="n">httpTransport</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TLSHttpsTransport</span><span class="o">(</span><span class="n">tlsConfig</span><span class="o">);</span>
+      <span class="o">}</span>
+      <span class="n">httpTransport</span><span class="o">.</span><span class="na">addHeaders</span><span class="o">(</span><span class="n">extraGlobalHeaders</span><span class="o">);</span>
+          
+      <span class="c1">//set configuration parameters</span>
+      <span class="k">this</span><span class="o">.</span><span class="na">httpClient</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ServiceCenterRawClient</span><span class="o">.</span><span class="na">Builder</span><span class="o">()</span>
+          <span class="o">.</span><span class="na">setHost</span><span class="o">(</span><span class="n">host</span><span class="o">)</span>
+          <span class="o">.</span><span class="na">setPort</span><span class="o">(</span><span class="n">port</span><span class="o">)</span>
+          <span class="o">.</span><span class="na">setProjectName</span><span class="o">(</span><span class="n">projectName</span><span class="o">)</span>
+          <span class="o">.</span><span class="na">setTenantName</span><span class="o">(</span><span class="n">tenantName</span><span class="o">)</span>
+          <span class="o">.</span><span class="na">setHttpTransport</span><span class="o">(</span><span class="n">httpTransport</span><span class="o">).</span><span class="na">build</span><span class="o">();</span>
+  <span class="o">}</span>
+</code></pre></div>    </div>
+  </li>
+</ul>
+
+<p>2.2  ServiceCenter客户端核心API</p>
+<ul>
+  <li>服务注册与发现，注册服务和实例到服务注册中心，根据服务ID发现服务实例。registerMicroserviceInstance方法用于注册服务实例，发起httpPOST请求访问服务实例注册URL，并将实例注入到请求body中，返回服务ID字符串; getMicroserviceInstanceList方法用于发现服务的所有实例，根据服务ID，发起httpGET请求访问服务发现URL，返回MicroserviceInstancesResponse对象。
+    <div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code>  <span class="c1">//service register</span>
+  <span class="kd">public</span> <span class="nc">String</span> <span class="nf">registerMicroserviceInstance</span><span class="o">(</span><span class="nc">MicroserviceInstance</span> <span class="n">instance</span><span class="o">,</span> <span class="nc">String</span> <span class="n">serviceId</span><span class="o">)</span> <span class="o">{</span>
+      <span class="k">try</span> <span class="o">{</span>
+        <span class="nc">ObjectMapper</span> <span class="n">mapper</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ObjectMapper</span><span class="o">();</span>
+        <span class="n">mapper</span><span class="o">.</span><span class="na">configure</span><span class="o">(</span><span class="nc">SerializationFeature</span><span class="o">.</span><span class="na">WRAP_ROOT_VALUE</span><span class="o">,</span> <span class="kc">true</span><span class="o">);</span>
+        <span class="nc">HttpResponse</span> <span class="n">response</span> <span class="o">=</span> <span class="n">httpClient</span><span class="o">.</span><span class="na">postHttpRequest</span><span class="o">(</span><span class="s">"/registry/microservices/"</span> <span class="o">+</span> <span class="n">serviceId</span> <span class="o">+</span> <span class="s">"/instances"</span><span class="o">,</span> <span class="kc">null</span><span class="o">,</span>
+            <span class="n">mapper</span><span class="o">.</span><span class="na">writeValueAsString</span><span class="o">(</span><span class="n">instance</span><span class="o">));</span>
+        <span class="k">if</span> <span class="o">(</span><span class="n">response</span><span class="o">.</span><span class="na">getStatusCode</span><span class="o">()</span> <span class="o">==</span> <span class="nc">HttpStatus</span><span class="o">.</span><span class="na">SC_OK</span><span class="o">)</span> <span class="o">{</span>
+          <span class="k">return</span> <span class="n">response</span><span class="o">.</span><span class="na">getContent</span><span class="o">();</span>
+        <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
+          <span class="k">throw</span> <span class="k">new</span> <span class="nf">OperationException</span><span class="o">(</span>
+              <span class="s">"register service instance fails, statusCode = "</span> <span class="o">+</span> <span class="n">response</span><span class="o">.</span><span class="na">getStatusCode</span><span class="o">()</span> <span class="o">+</span> <span class="s">"; message = "</span> <span class="o">+</span> <span class="n">response</span>
+                  <span class="o">.</span><span class="na">getMessage</span><span class="o">()</span>
+                  <span class="o">+</span> <span class="s">"; content = "</span> <span class="o">+</span> <span class="n">response</span><span class="o">.</span><span class="na">getContent</span><span class="o">());</span>
+        <span class="o">}</span>
+      <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="nc">IOException</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span>
+        <span class="k">throw</span> <span class="k">new</span> <span class="nf">OperationException</span><span class="o">(</span>
+            <span class="s">"register service instance fails"</span><span class="o">,</span> <span class="n">e</span><span class="o">);</span>
+      <span class="o">}</span>
+  <span class="o">}</span>
+ 	  <span class="c1">//service discovery</span>
+  <span class="kd">public</span> <span class="nc">MicroserviceInstancesResponse</span> <span class="nf">getMicroserviceInstanceList</span><span class="o">(</span><span class="nc">String</span> <span class="n">serviceId</span><span class="o">)</span> <span class="o">{</span>
+      <span class="k">try</span> <span class="o">{</span>
+        <span class="nc">HttpResponse</span> <span class="n">response</span> <span class="o">=</span> <span class="n">httpClient</span>
+            <span class="o">.</span><span class="na">getHttpRequest</span><span class="o">(</span><span class="s">"/registry/microservices/"</span> <span class="o">+</span> <span class="n">serviceId</span> <span class="o">+</span> <span class="s">"/instances"</span><span class="o">,</span> <span class="kc">null</span><span class="o">,</span> <span class="kc">null</span><span class="o">);</span>
+        <span class="k">if</span> <span class="o">(</span><span class="n">response</span><span class="o">.</span><span class="na">getStatusCode</span><span class="o">()</span> <span class="o">==</span> <span class="nc">HttpStatus</span><span class="o">.</span><span class="na">SC_OK</span><span class="o">)</span> <span class="o">{</span>
+          <span class="nc">ObjectMapper</span> <span class="n">mapper</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ObjectMapper</span><span class="o">();</span>
+          <span class="k">return</span> <span class="n">mapper</span><span class="o">.</span><span class="na">readValue</span><span class="o">(</span><span class="n">response</span><span class="o">.</span><span class="na">getContent</span><span class="o">(),</span> <span class="nc">MicroserviceInstancesResponse</span><span class="o">.</span><span class="na">class</span><span class="o">);</span>
+        <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
+          <span class="k">throw</span> <span class="k">new</span> <span class="nf">OperationException</span><span class="o">(</span>
+              <span class="s">"get service instances list fails, statusCode = "</span> <span class="o">+</span> <span class="n">response</span><span class="o">.</span><span class="na">getStatusCode</span><span class="o">()</span> <span class="o">+</span> <span class="s">"; message = "</span> <span class="o">+</span> <span class="n">response</span>
+                  <span class="o">.</span><span class="na">getMessage</span><span class="o">()</span>
+                  <span class="o">+</span> <span class="s">"; content = "</span> <span class="o">+</span> <span class="n">response</span><span class="o">.</span><span class="na">getContent</span><span class="o">());</span>
+        <span class="o">}</span>
+      <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="nc">IOException</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span>
+        <span class="k">throw</span> <span class="k">new</span> <span class="nf">OperationException</span><span class="o">(</span>
+            <span class="s">"get service instances list fails"</span><span class="o">,</span> <span class="n">e</span><span class="o">);</span>
+      <span class="o">}</span>
+  <span class="o">}</span>      
+</code></pre></div>    </div>
+  </li>
+  <li>心跳，服务实例发送心跳告知服务中心。代码中发起httpPUT请求中访问心跳URL，并导入HeartbeatsRequest （包含服务ID和实例ID）到请求body中，响应状态码为200表示心跳成功。
+    <div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code>  <span class="c1">//heartBeats</span>
+  <span class="kd">public</span> <span class="kt">void</span> <span class="nf">sendHeartBeats</span><span class="o">(</span><span class="nc">HeartbeatsRequest</span> <span class="n">heartbeatsRequest</span><span class="o">)</span> <span class="o">{</span>
+    <span class="k">try</span> <span class="o">{</span>
+      <span class="nc">ObjectMapper</span> <span class="n">mapper</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ObjectMapper</span><span class="o">();</span>
+      <span class="nc">HttpResponse</span> <span class="n">response</span> <span class="o">=</span> <span class="n">httpClient</span>
+          <span class="o">.</span><span class="na">putHttpRequest</span><span class="o">(</span><span class="s">"/registry/heartbeats"</span><span class="o">,</span> <span class="kc">null</span><span class="o">,</span> <span class="n">mapper</span><span class="o">.</span><span class="na">writeValueAsString</span><span class="o">(</span><span class="n">heartbeatsRequest</span><span class="o">));</span>
+  
+      <span class="k">if</span> <span class="o">(</span><span class="n">response</span><span class="o">.</span><span class="na">getStatusCode</span><span class="o">()</span> <span class="o">==</span> <span class="nc">HttpStatus</span><span class="o">.</span><span class="na">SC_OK</span><span class="o">)</span> <span class="o">{</span>
+        <span class="no">LOGGER</span><span class="o">.</span><span class="na">info</span><span class="o">(</span><span class="s">"HEARTBEATS SUCCESS"</span><span class="o">);</span>
+      <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
+        <span class="k">throw</span> <span class="k">new</span> <span class="nf">OperationException</span><span class="o">(</span>
+            <span class="s">"heartbeats fails, statusCode = "</span> <span class="o">+</span> <span class="n">response</span><span class="o">.</span><span class="na">getStatusCode</span><span class="o">()</span> <span class="o">+</span> <span class="s">"; message = "</span> <span class="o">+</span> <span class="n">response</span><span class="o">.</span><span class="na">getMessage</span><span class="o">()</span>
+                <span class="o">+</span> <span class="s">"; content = "</span> <span class="o">+</span> <span class="n">response</span><span class="o">.</span><span class="na">getContent</span><span class="o">());</span>
+      <span class="o">}</span>
+    <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="nc">IOException</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span>
+      <span class="k">throw</span> <span class="k">new</span> <span class="nf">OperationException</span><span class="o">(</span>
+          <span class="s">"heartbeats fails "</span><span class="o">,</span> <span class="n">e</span><span class="o">);</span>
+    <span class="o">}</span>
+  <span class="o">}</span>
+</code></pre></div>    </div>
+  </li>
+</ul>
+
+<p>2.3 更多客户端API介绍，参考客户端说明文档 <a href="https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client">https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client</a></p>
+
+<h2 id="3-servicecenter客户端实践">3. ServiceCenter客户端实践</h2>
+<p>3.1 实践准备</p>
+<ul>
+  <li>启动ServiceComb服务中心：<a href="http://servicecomb.apache.org/cn/docs/service-center/install/">http://servicecomb.apache.org/cn/docs/service-center/install/</a></li>
+  <li>下载演示代码：<a href="https://github.com/zaneChou1/spring-boot-servicecenter">https://github.com/zaneChou1/spring-boot-servicecenter</a></li>
+</ul>
+
+<p>3.2 provider端启动服务，通过客户端注册到ServiceCenter<br />
+运行provider模块，启动helloServer服务，并调用客户端API创建客户端对象、创建helloServer服务和实例对象、注册服务和实例到servicecomb 服务中心，并保持30s一次心跳，代码实现如下。</p>
+<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code>  <span class="kd">public</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">registerMicroservice</span><span class="o">(){</span>
+     <span class="c1">//new ServiceCenterClient object</span>
+     <span class="nc">ServiceCenterClient</span> <span class="n">sc</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ServiceCenterClient</span><span class="o">();</span>
+     
+     <span class="c1">//new Microservice object and setting properties and serviceName is necessary</span>
+     <span class="nc">Microservice</span> <span class="n">microservice</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">Microservice</span><span class="o">();</span>
+     <span class="n">microservice</span><span class="o">.</span><span class="na">setServiceId</span><span class="o">(</span><span class="s">"1111"</span><span class="o">);</span>
+     <span class="n">microservice</span><span class="o">.</span><span class="na">setServiceName</span><span class="o">(</span><span class="s">"HelloServer"</span><span class="o">);</span>
+     <span class="c1">//register microservice to service-center</span>
+     <span class="n">sc</span><span class="o">.</span><span class="na">registerMicroservice</span><span class="o">(</span><span class="n">microservice</span><span class="o">);</span>
+     
+     <span class="c1">//new MicroserviceInstance object and bind server IP and port</span>
+     <span class="nc">MicroserviceInstance</span> <span class="n">instance</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">MicroserviceInstance</span><span class="o">();</span>
+     <span class="nc">List</span><span class="o">&lt;</span><span class="nc">String</span><span class="o">&gt;</span> <span class="n">endPoints</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ArrayList</span><span class="o">&lt;</span><span class="nc">String</span><span class="o">&gt;();</span>
+     <span class="n">endPoints</span><span class="o">.</span><span class="na">add</span><span class="o">(</span><span class="s">"rest://127.0.0.1:8080/"</span><span class="o">);</span>
+     <span class="n">instance</span><span class="o">.</span><span class="na">setEndpoints</span><span class="o">(</span><span class="n">endPoints</span><span class="o">);</span>
+     <span class="c1">//setting instance hostName, instanceId and hostName is necessary</span>
+     <span class="n">instance</span><span class="o">.</span><span class="na">setHostName</span><span class="o">(</span><span class="s">"test"</span><span class="o">);</span>
+     <span class="n">instance</span><span class="o">.</span><span class="na">setInstanceId</span><span class="o">(</span><span class="s">"2222"</span><span class="o">);</span>
+     <span class="c1">//register microservice instance to service-center</span>
+     <span class="n">sc</span><span class="o">.</span><span class="na">registerMicroserviceInstance</span><span class="o">(</span><span class="n">instance</span><span class="o">,</span><span class="n">microservice</span><span class="o">.</span><span class="na">getServiceId</span><span class="o">());</span>
+     
+     <span class="c1">//send a heartbeat every 30s</span>
+     <span class="nc">HeartbeatsRequest</span> <span class="n">heartbeatsRequest</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">HeartbeatsRequest</span><span class="o">(</span><span class="s">"1111"</span><span class="o">,</span><span class="s">"2222"</span><span class="o">);</span>
+     <span class="k">while</span><span class="o">(</span><span class="kc">true</span><span class="o">){</span>
+       <span class="n">sc</span><span class="o">.</span><span class="na">sendHeartBeats</span><span class="o">(</span><span class="n">heartbeatsRequest</span><span class="o">);</span>
+       <span class="k">try</span> <span class="o">{</span>
+         <span class="nc">Thread</span><span class="o">.</span><span class="na">sleep</span><span class="o">(</span><span class="mi">30000</span><span class="o">);</span>
+       <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="nc">InterruptedException</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span>
+         <span class="n">e</span><span class="o">.</span><span class="na">printStackTrace</span><span class="o">();</span>
+       <span class="o">}</span>
+     <span class="o">}</span>
+  <span class="o">}</span>
+</code></pre></div></div>
+<p>查看service-center的UI显示如下，helloServer服务注册到服务中心成功，且有一个服务实例test。 <br />
+<img src="/assets/images/client/sc-sample-UI.png" alt="" /><br />
+访问provider服务监听的8080端口，返回“Hello Spring-Boot-ServiceCenter !”。<br />
+<img src="/assets/images/client/sc-sample-provider.png" alt="" /></p>
+
+<p>3.3 consumer端通过客户端发现服务实例，发起服务调用<br />
+运行consumer模块，启动consumer服务，调用客户端API新建客户端对象、发现helloServer服务实例、获取服务监听的IP和端口，最后调用provider端helloServer服务返回结果。</p>
+<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c1">//find service instance</span>
+<span class="nc">ServiceCenterClient</span> <span class="n">sc</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ServiceCenterClient</span><span class="o">();</span>
+<span class="nc">MicroserviceInstancesResponse</span> <span class="n">instances</span> <span class="o">=</span> <span class="n">sc</span><span class="o">.</span><span class="na">getMicroserviceInstanceList</span><span class="o">(</span><span class="s">"1111"</span><span class="o">);</span>
+<span class="c1">//get IP and port that service is listening on</span>
+<span class="no">URI</span> <span class="n">endpointURIBuilder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">URIBuilder</span><span class="o">(</span><span class="n">instances</span><span class="o">.</span><span class="na">getInstances</span><span class="o">().</span><span class="na">get</span><span class="o">(</span><span class="mi">0</span><span class="o">).</span><span class="na">getEndpoints</span><span class="o">().</span><span class="na">get</span><span class="o">(</span><span class="mi">0</span><span class="o">)).</span><span class="na">build</span><span class="o">();</span>
+<span class="kt">int</span> <span class="n">port</span> <span class="o">=</span> <span class="n">endpointURIBuilder</span><span class="o">.</span><span class="na">getPort</span><span class="o">();</span>
+<span class="nc">String</span> <span class="n">host</span> <span class="o">=</span> <span class="n">endpointURIBuilder</span><span class="o">.</span><span class="na">getHost</span><span class="o">();</span>
+
+<span class="c1">//call service</span>
+<span class="nc">RestTemplate</span> <span class="n">restTemplate</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">RestTemplate</span><span class="o">();</span>
+<span class="nc">ResponseEntity</span><span class="o">&lt;</span><span class="nc">String</span><span class="o">&gt;</span> <span class="n">result</span> <span class="o">=</span> <span class="n">restTemplate</span><span class="o">.</span><span class="na">getForEntity</span><span class="o">(</span><span class="s">"http://"</span><span class="o">+</span><span class="n">host</span><span class="o">+</span><span class="s">":"</span><span class="o">+</span><span class="n">port</span><span class="o">,</span><span class="nc">String</span><span class="o">.</span><span class="na">class</span><span class="o">);</span>
+<span class="k">return</span> <span class="n">result</span><span class="o">.</span><span class="na">getBody</span><span class="o">();</span>
+</code></pre></div></div>
+<p>访问consumer端监听的8081端口，返回helloServer的响应结果“Hello Spring-Boot-ServiceCenter !”，consumer端通过ServiceComb服务注册中心调用provider端服务成功。  <br />
+<img src="/assets/images/client/sc-sample-consumer.png" alt="" /></p>
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diff --git a/content/cn/docs/servicecomb-springcloud-zuul-demo/index.html b/content/cn/docs/servicecomb-springcloud-zuul-demo/index.html
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@@ -903,6 +903,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+    
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+    
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         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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@@ -703,6 +703,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
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+  2 分钟 阅读
+
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+    
+  </article>
+</div>
+
+        
+          
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+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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@@ -745,6 +745,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 分钟 阅读
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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+++ b/content/cn/docs/tracing-with-servicecomb/index.html
@@ -659,6 +659,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 分钟 阅读
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -714,6 +714,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 分钟 阅读
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-      
-        <a href="/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/" rel="permalink">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT)
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-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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@@ -428,6 +428,37 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 分钟 阅读
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+          
+          
+
+
+
+<div class="list__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
@@ -2129,6 +2160,16 @@
 <!-- If not equal to previous then it must be unique as sorted -->
 
 
+<!-- Push to group_names -->
+
+
+
+
+
+
+<!-- If not equal to previous then it must be unique as sorted -->
+
+
 
 
 
@@ -2367,6 +2408,16 @@
 <!-- If not equal to previous then it must be unique as sorted -->
 
 
+<!-- Push to group_names -->
+
+
+
+
+
+
+<!-- If not equal to previous then it must be unique as sorted -->
+
+
 
 
 
@@ -3258,6 +3309,22 @@
 
 
 
+<!-- Collect if contains -->
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+
+
+<!-- Push to group_items -->
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+
+
+<!-- Collect if contains -->
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+
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+<!-- Push to group_items -->
+
+
+
         
           
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+          
+            
+
+
+
+<div class="list__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 分钟 阅读
+
+</p>
+    
+  </article>
+</div>
+
+          
+        
+          
           <h2 id="cluster" class="archive__subtitle">Cluster</h2>
           
             
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+          
+            
+
+
+
+<div class="list__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 分钟 阅读
+
+</p>
+    
+  </article>
+</div>
+
+          
+        
+          
           <h2 id="servicecomb" class="archive__subtitle">ServiceComb</h2>
           
             
diff --git a/content/docs/Apache-ServiceComb-Meetup-2018-Shanghai-Report/index.html b/content/docs/Apache-ServiceComb-Meetup-2018-Shanghai-Report/index.html
index 8bd7d53..98c5e9a 100644
--- a/content/docs/Apache-ServiceComb-Meetup-2018-Shanghai-Report/index.html
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@@ -622,6 +622,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-    <h2 class="archive__item-title" itemprop="headline">
-      
-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
-
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-  1 minute read
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-</p>
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diff --git a/content/docs/Apache-ServiceComb-Meetup-2018-Shanghai/index.html b/content/docs/Apache-ServiceComb-Meetup-2018-Shanghai/index.html
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@@ -628,6 +628,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-      
-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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-  1 minute read
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diff --git a/content/docs/Apache-ServiceComb-Meetup-2019-Shanghai-KubeCon+CloudNative+OSS-Report/index.html b/content/docs/Apache-ServiceComb-Meetup-2019-Shanghai-KubeCon+CloudNative+OSS-Report/index.html
index 3d3daba..1457a8e 100644
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@@ -623,6 +623,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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 </div>
 
         
-          
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-  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
-    
-    <h2 class="archive__item-title" itemprop="headline">
-      
-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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-  1 minute read
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@@ -622,6 +622,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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 </div>
 
         
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-  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
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-      
-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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diff --git a/content/docs/apache-servicecomb-incubating-day-report/index.html b/content/docs/apache-servicecomb-incubating-day-report/index.html
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+++ b/content/docs/apache-servicecomb-incubating-day-report/index.html
@@ -577,6 +577,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-      
-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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-  1 minute read
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+++ b/content/docs/apache-servicecomb-incubating-day/index.html
@@ -683,6 +683,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -672,6 +672,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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-      
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -565,6 +565,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -582,6 +582,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+++ b/content/docs/company-on-kubernetes/index.html
@@ -670,6 +670,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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+++ b/content/docs/distributed_saga_1/index.html
@@ -712,6 +712,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-      
-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
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-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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@@ -658,6 +658,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
-</p>
-    
-      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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@@ -691,6 +691,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -726,6 +726,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -920,6 +920,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -777,6 +777,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
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+          
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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-      
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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       <ul>
         <p class="header">Contribute</p>
         <li><a href="http://issues.apache.org/jira/browse/SCB">Report a Doc Issue</a></li>
-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mersher-quick-start-advance.md">Edit This Page on Github</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mesher-quick-start-advance.md">Edit This Page on Github</a></li>
         <li><a href="/developers/submit-codes/">Code Submit Guide</a></li>
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       <ul>
         <p class="header">Contribute</p>
         <li><a href="http://issues.apache.org/jira/browse/SCB">Report a Doc Issue</a></li>
-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mersher-distributed-tracing.md">Edit This Page on Github</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mesher-distributed-tracing.md">Edit This Page on Github</a></li>
         <li><a href="/developers/submit-codes/">Code Submit Guide</a></li>
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       <ul>
         <p class="header">Contribute</p>
         <li><a href="http://issues.apache.org/jira/browse/SCB">Report a Doc Issue</a></li>
-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mersher-flow-control.md">Edit This Page on Github</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mesher-flow-control.md">Edit This Page on Github</a></li>
         <li><a href="/developers/submit-codes/">Code Submit Guide</a></li>
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mersher-load-balance.md">Edit This Page on Github</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mesher-load-balance.md">Edit This Page on Github</a></li>
         <li><a href="/developers/submit-codes/">Code Submit Guide</a></li>
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       <ul>
         <p class="header">Contribute</p>
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-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mersher-service-management.md">Edit This Page on Github</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mesher-service-management.md">Edit This Page on Github</a></li>
         <li><a href="/developers/submit-codes/">Code Submit Guide</a></li>
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       <ul>
         <p class="header">Contribute</p>
         <li><a href="http://issues.apache.org/jira/browse/SCB">Report a Doc Issue</a></li>
-        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mersher-quick-start.md">Edit This Page on Github</a></li>
+        <li><a href="https://github.com/apache/servicecomb-website/edit/master/_docs/mesher-quick-start.md">Edit This Page on Github</a></li>
         <li><a href="/developers/submit-codes/">Code Submit Guide</a></li>
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@@ -582,6 +582,35 @@
     
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -664,6 +664,35 @@
     
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
+
+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-</a>
-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -609,6 +609,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
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+          
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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-      
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -598,6 +598,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -611,6 +611,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
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+          
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
-</a>
-      
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -597,6 +597,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
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+  2 分钟 阅读
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+    
+  </article>
+</div>
+
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
 </a>
       
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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-      
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
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+  2 minute read
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+    
+  </article>
+</div>
+
+        
+          
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -551,6 +551,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
+
+
+
+  2 minute read
+
+</p>
+    
+  </article>
+</div>
+
+        
+          
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+
+
+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/" rel="permalink">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)
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-      
-    </h2>
-    <p class="archive__item-excerpt" itemprop="description">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT)
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+++ b/content/docs/servicecomb-pack-cluster/index.html
@@ -848,6 +848,35 @@
     
     <h2 class="archive__item-title" itemprop="headline">
       
+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
+
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+  </article>
+</div>
+
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-        <a href="/cn/docs/use-oas-validator-help-standardize-oas-spec/" rel="permalink">使用OAS Validator帮助你规范OpenAPI Spec文档
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+</p>
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+  </article>
+</div>
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+<div class="grid__item">
+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
+    <h2 class="archive__item-title" itemprop="headline">
+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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@@ -715,6 +715,35 @@
     
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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@@ -699,6 +699,35 @@
     
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
+</p>
+    
+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+</div>
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
+    
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+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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+        <a href="/cn/docs/servicecomb-service-center-client/" rel="permalink">使用ServiceComb客户端轻松调用ServiceCenter
+</a>
+      
+    </h2>
+    <p class="archive__item-excerpt" itemprop="description">使用ServiceComb客户端轻松调用ServiceCenter
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+      <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> 
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+  <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork">
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+      
         <a href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="permalink">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)
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-    <p class="archive__item-excerpt" itemprop="description">本文将介绍如何规范你的OpenAPI Spec文档
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diff --git a/content/feed.xml b/content/feed.xml
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-<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="3.8.5">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2019-12-10T14:51:23+08:00</updated><id>/feed.xml</id><title type="html">Apache ServiceComb</title><subtitle>The homepage of ServiceComb</subtitle><author><name>{&quot;name&quot;=&gt;nil, &quot;avatar&quot;=&gt;&quot;/assets/images/ServiceComb-logo-3.jpg&quot;, &quot;bio&quot;=&gt;&quot;ServiceComb is a microservice framework that provides service registration, discovery, configuration and management utilities.&quot;, &quot;biocn&quot;=&gt;&quot;ServiceComb提供了一套关于服务注册，服务发现，服务配置以及管理功能的微服务框架&quot;, &quot;location&quot;=&gt;&quot;China&quot;, &quot;locationcn&quot;=&gt;&quot;中国&quot;, &quot;email&quot;=&gt;&quot;dev@servicecomb.apache.org&quot;, &quot;uri&quot;=&gt;nil, &quot;bitbucket&quot;=&gt;nil, &quot;codepen&quot;=&gt;nil, &quot;dribbble&quot;=&gt;nil, &quot;flickr&quot;=&gt;nil, &quot;facebook&quot;=&gt;nil, &quot;foursquare&quot;=&gt;nil, &quot;github&quot;=&gt;&quot;ServiceComb&quot;, &quot;google_plus&quot;=&gt;nil, &quot;keybase&quot;=&gt;nil, &quot;instagram&quot;=&gt;nil, &quot;lastfm&quot;=&gt;nil, &quot;linkedin&quot;=&gt;nil, &quot;pinterest&quot;=&gt;nil, &quot;soundcloud&quot;=&gt;nil, &quot;stackoverflow&quot;=&gt;nil, &quot;steam&quot;=&gt;nil, &quot;tumblr&quot;=&gt;nil, &quot;twitter&quot;=&gt;nil, &quot;vine&quot;=&gt;nil, &quot;weibo&quot;=&gt;nil, &quot;xing&quot;=&gt;nil, &quot;youtube&quot;=&gt;nil}</name><email>dev@servicecomb.apache.org</email></author><entry xml:lang="cn"><title type="html">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)</title><link href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="alternate" type="text/html" title="与Apache ServiceComb一起玩开源-北邮站 (PPT Download)" /><published>2019-11-20T00:00:00+08:00</published><updated>2019-11-21T15:18:43+08:00</updated><id>/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT</id><content type="html" xml:base="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/">&lt;p&gt;近日，Apache ServiceComb与北京邮电大学“乐群学堂”联合举办“与Apache ServiceComb一起玩开源”讲座。Apache ServiceComb PMC成员马彬与华为开源软件架构师郑志鹏，为北邮的同学们带来“ServiceComb带你走进开源”和“使用ServiceComb快速开发高并发高可用电商系统实践使用微服务架构快速开发万级TPS高可用电商系统”的精彩演讲以及现场教学互动。&lt;/p&gt;
+<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="3.8.5">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2019-12-11T08:44:02+08:00</updated><id>/feed.xml</id><title type="html">Apache ServiceComb</title><subtitle>The homepage of ServiceComb</subtitle><author><name>{&quot;name&quot;=&gt;nil, &quot;avatar&quot;=&gt;&quot;/assets/images/ServiceComb-logo-3.jpg&quot;, &quot;bio&quot;=&gt;&quot;ServiceComb is a microservice framework that provides service registration, discovery, configuration and management utilities.&quot;, &quot;biocn&quot;=&gt;&quot;ServiceComb提供了一套关于服务注册，服务发现，服务配置以及管理功能的微服务框架&quot;, &quot;location&quot;=&gt;&quot;China&quot;, &quot;locationcn&quot;=&gt;&quot;中国&quot;, &quot;email&quot;=&gt;&quot;dev@servicecomb.apache.org&quot;, &quot;uri&quot;=&gt;nil, &quot;bitbucket&quot;=&gt;nil, &quot;codepen&quot;=&gt;nil, &quot;dribbble&quot;=&gt;nil, &quot;flickr&quot;=&gt;nil, &quot;facebook&quot;=&gt;nil, &quot;foursquare&quot;=&gt;nil, &quot;github&quot;=&gt;&quot;ServiceComb&quot;, &quot;google_plus&quot;=&gt;nil, &quot;keybase&quot;=&gt;nil, &quot;instagram&quot;=&gt;nil, &quot;lastfm&quot;=&gt;nil, &quot;linkedin&quot;=&gt;nil, &quot;pinterest&quot;=&gt;nil, &quot;soundcloud&quot;=&gt;nil, &quot;stackoverflow&quot;=&gt;nil, &quot;steam&quot;=&gt;nil, &quot;tumblr&quot;=&gt;nil, &quot;twitter&quot;=&gt;nil, &quot;vine&quot;=&gt;nil, &quot;weibo&quot;=&gt;nil, &quot;xing&quot;=&gt;nil, &quot;youtube&quot;=&gt;nil}</name><email>dev@servicecomb.apache.org</email></author><entry xml:lang="cn"><title type="html">使用ServiceComb客户端轻松调用ServiceCenter</title><link href="/cn/docs/servicecomb-service-center-client/" rel="alternate" type="text/html" title="使用ServiceComb客户端轻松调用ServiceCenter" /><published>2019-12-09T00:00:00+08:00</published><updated>2019-12-09T14:00:30+08:00</updated><id>/cn/docs/servicecomb-service-center-client</id><content type="html" xml:base="/cn/docs/servicecomb-service-center-client/">&lt;h1 id=&quot;使用servicecomb客户端轻松调用servicecenter&quot;&gt;使用ServiceComb客户端轻松调用ServiceCenter&lt;/h1&gt;
+
+&lt;h2 id=&quot;1-问题背景&quot;&gt;1. 问题/背景&lt;/h2&gt;
+&lt;p&gt;在微服务架构中，服务注册中心是必不可少的组件，提供服务注册与管理的能力。目前使用ServiceComb服用中心的java微服务开发者，不仅需要写微服务业务代码，还要写客户端代码去调用ServiceCenter的openAPI。开发者首先需要熟悉ServiceCenter的openAPI文档，然后代码实现http客户端用于发起请求和接收响应，并绑定ServiceCenter配置参数，最后代码实现对服务中心API的调用，才能使用上ServiceCenter。为了简单化开发者使用ServiceCenter，ServiceCenter客户端实现了上述步骤。开发者只需要添加客户端jar包调用API就能轻松使用ServiceCenter，不需要过多关注openAPI文档、不需要写http客户端层代码。使用ServiceComb客户端，开发者可以轻松调用ServiceCenter，更专注于写微服务业务代码。&lt;br /&gt;
+了解更多ServiceComb-Service-Center：&lt;a href=&quot;https://docs.servicecomb.io/service-center/zh_CN/index.html&quot;&gt;https://docs.servicecomb.io/service-center/zh_CN/index.html&lt;/a&gt;&lt;br /&gt;
+了解更多ServiceCenter客户端：&lt;a href=&quot;https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client&quot;&gt;https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client&lt;/a&gt;&lt;br /&gt;
+&lt;img src=&quot;/assets/images/client/sc-client.jpg&quot; alt=&quot;service-center-client-design&quot; /&gt;&lt;/p&gt;
+
+&lt;h2 id=&quot;2-客户端原理及关键代码解读&quot;&gt;2. 客户端原理及关键代码解读&lt;/h2&gt;
+&lt;p&gt;2.1  基于httpClient设计ServiceCenter客户端&lt;/p&gt;
+&lt;ul&gt;
+  &lt;li&gt;
+    &lt;p&gt;客户端发起请求和接收响应。客户端选择httpclient作为底层组件，用于实际发起请求和接收响应，并对请求和响应类进行了封装。代码中get方法对应发起GET请求，调用doRequest方法首先添加服务注册中心信息到封装过的httpRequest请求头部，再基于httpclient组件发起实际的http请求，最后将请求响应结果转化为封装过的httpResponse对象返回。&lt;/p&gt;
+
+    &lt;div class=&quot;language-java highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;&lt;span class=&quot;c1&quot;&gt;//make GET request&lt;/span&gt;
+&lt;span class=&quot;nd&quot;&gt;@Override&lt;/span&gt;
+&lt;span class=&quot;kd&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;HttpResponse&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;get&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;HttpRequest&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;request&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;kd&quot;&gt;throws&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;IOException&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+    &lt;span class=&quot;n&quot;&gt;request&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setMethod&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;HttpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;GET&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+    &lt;span class=&quot;k&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;doRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;request&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+&lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+&lt;span class=&quot;o&quot;&gt;......&lt;/span&gt;
+   
+&lt;span class=&quot;c1&quot;&gt;//make http request with httpClient component&lt;/span&gt;
+&lt;span class=&quot;kd&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;HttpResponse&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;doRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;HttpRequest&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;httpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;kd&quot;&gt;throws&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;IOException&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+    &lt;span class=&quot;c1&quot;&gt;//add cse-serviceregistry-client header to identify client&lt;/span&gt;
+    &lt;span class=&quot;n&quot;&gt;httpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;addHeader&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;no&quot;&gt;HEADER_CONTENT_TYPE&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;application/json&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+    &lt;span class=&quot;n&quot;&gt;httpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;addHeader&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;no&quot;&gt;HEADER_USER_AGENT&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;cse-serviceregistry-client/1.0.0&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+        
+    &lt;span class=&quot;k&quot;&gt;if&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;globalHeaders&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;!=&lt;/span&gt; &lt;span class=&quot;kc&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+    &lt;span class=&quot;n&quot;&gt;globalHeaders&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;forEach&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nl&quot;&gt;httpRequest:&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;:&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;addHeader&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+    &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+        
+    &lt;span class=&quot;c1&quot;&gt;//make http request&lt;/span&gt;
+    &lt;span class=&quot;n&quot;&gt;org&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;apache&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;http&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;HttpResponse&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;httpClient&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;execute&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;httpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getRealRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;());&lt;/span&gt;
+        
+    &lt;span class=&quot;kt&quot;&gt;int&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;statusCode&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusLine&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;().&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+    &lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;messgae&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusLine&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;().&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getReasonPhrase&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+    &lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;context&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;EntityUtils&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;toString&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getEntity&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(),&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;UTF-8&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+        
+    &lt;span class=&quot;k&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;HttpResponse&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;statusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;messgae&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;context&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+&lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;    &lt;/div&gt;
+  &lt;/li&gt;
+  &lt;li&gt;
+    &lt;p&gt;客户端支持定制化服务中心配置参数。代码中看到，客户端支持开发者定制服务中心IP，端口，项目名称，租户名称，导入TLSConfig和新增请求头，并通过客户端的Builder方法注入配置。TLSConfig为客户端TLS认证配置类，给客户端导入TLS证书配置，即可开启客户端双向认证模式。&lt;/p&gt;
+
+    &lt;div class=&quot;language-java highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;  &lt;span class=&quot;cm&quot;&gt;/**
+   * Customized host, port, projectName, tenantName, TLSConf, headers and any one parameter can be null.
+   */&lt;/span&gt;
+  &lt;span class=&quot;kd&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;ServiceCenterClient&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;host&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;kt&quot;&gt;int&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;port&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;projectName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;tenantName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;TLSConfig&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;tlsConfig&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt;
+    &lt;span class=&quot;nc&quot;&gt;Map&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;gt;&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;extraGlobalHeaders&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+      &lt;span class=&quot;nc&quot;&gt;HttpTransport&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;httpTransport&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;HttpTransportFactory&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getDefaultHttpTransport&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+      &lt;span class=&quot;k&quot;&gt;if&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;tlsConfig&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;!=&lt;/span&gt; &lt;span class=&quot;kc&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+        &lt;span class=&quot;n&quot;&gt;httpTransport&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;TLSHttpsTransport&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;tlsConfig&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+      &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+      &lt;span class=&quot;n&quot;&gt;httpTransport&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;addHeaders&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;extraGlobalHeaders&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+          
+      &lt;span class=&quot;c1&quot;&gt;//set configuration parameters&lt;/span&gt;
+      &lt;span class=&quot;k&quot;&gt;this&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;httpClient&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;ServiceCenterRawClient&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;Builder&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt;
+          &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setHost&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;host&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt;
+          &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setPort&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;port&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt;
+          &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setProjectName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;projectName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt;
+          &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setTenantName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;tenantName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt;
+          &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setHttpTransport&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;httpTransport&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;).&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;build&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+  &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;    &lt;/div&gt;
+  &lt;/li&gt;
+&lt;/ul&gt;
+
+&lt;p&gt;2.2  ServiceCenter客户端核心API&lt;/p&gt;
+&lt;ul&gt;
+  &lt;li&gt;服务注册与发现，注册服务和实例到服务注册中心，根据服务ID发现服务实例。registerMicroserviceInstance方法用于注册服务实例，发起httpPOST请求访问服务实例注册URL，并将实例注入到请求body中，返回服务ID字符串; getMicroserviceInstanceList方法用于发现服务的所有实例，根据服务ID，发起httpGET请求访问服务发现URL，返回MicroserviceInstancesResponse对象。
+    &lt;div class=&quot;language-java highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;  &lt;span class=&quot;c1&quot;&gt;//service register&lt;/span&gt;
+  &lt;span class=&quot;kd&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;registerMicroserviceInstance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;MicroserviceInstance&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;instance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;serviceId&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+      &lt;span class=&quot;k&quot;&gt;try&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+        &lt;span class=&quot;nc&quot;&gt;ObjectMapper&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;mapper&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;ObjectMapper&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+        &lt;span class=&quot;n&quot;&gt;mapper&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;configure&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;SerializationFeature&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;WRAP_ROOT_VALUE&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;kc&quot;&gt;true&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+        &lt;span class=&quot;nc&quot;&gt;HttpResponse&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;httpClient&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;postHttpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;/registry/microservices/&quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;serviceId&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;/instances&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;kc&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt;
+            &lt;span class=&quot;n&quot;&gt;mapper&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;writeValueAsString&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;instance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;));&lt;/span&gt;
+        &lt;span class=&quot;k&quot;&gt;if&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;==&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;HttpStatus&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;SC_OK&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+          &lt;span class=&quot;k&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getContent&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+        &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;else&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+          &lt;span class=&quot;k&quot;&gt;throw&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;OperationException&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;
+              &lt;span class=&quot;s&quot;&gt;&quot;register service instance fails, statusCode = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;; message = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;
+                  &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getMessage&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt;
+                  &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;; content = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getContent&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;());&lt;/span&gt;
+        &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+      &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;catch&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;IOException&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+        &lt;span class=&quot;k&quot;&gt;throw&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;OperationException&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;
+            &lt;span class=&quot;s&quot;&gt;&quot;register service instance fails&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+      &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+  &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+ 	  &lt;span class=&quot;c1&quot;&gt;//service discovery&lt;/span&gt;
+  &lt;span class=&quot;kd&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;MicroserviceInstancesResponse&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;getMicroserviceInstanceList&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;serviceId&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+      &lt;span class=&quot;k&quot;&gt;try&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+        &lt;span class=&quot;nc&quot;&gt;HttpResponse&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;httpClient&lt;/span&gt;
+            &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getHttpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;/registry/microservices/&quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;serviceId&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;/instances&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;kc&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;kc&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+        &lt;span class=&quot;k&quot;&gt;if&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;==&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;HttpStatus&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;SC_OK&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+          &lt;span class=&quot;nc&quot;&gt;ObjectMapper&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;mapper&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;ObjectMapper&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+          &lt;span class=&quot;k&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;mapper&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;readValue&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getContent&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(),&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;MicroserviceInstancesResponse&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;class&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+        &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;else&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+          &lt;span class=&quot;k&quot;&gt;throw&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;OperationException&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;
+              &lt;span class=&quot;s&quot;&gt;&quot;get service instances list fails, statusCode = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;; message = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;
+                  &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getMessage&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt;
+                  &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;; content = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getContent&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;());&lt;/span&gt;
+        &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+      &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;catch&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;IOException&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+        &lt;span class=&quot;k&quot;&gt;throw&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;OperationException&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;
+            &lt;span class=&quot;s&quot;&gt;&quot;get service instances list fails&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+      &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+  &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;      
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;    &lt;/div&gt;
+  &lt;/li&gt;
+  &lt;li&gt;心跳，服务实例发送心跳告知服务中心。代码中发起httpPUT请求中访问心跳URL，并导入HeartbeatsRequest （包含服务ID和实例ID）到请求body中，响应状态码为200表示心跳成功。
+    &lt;div class=&quot;language-java highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;  &lt;span class=&quot;c1&quot;&gt;//heartBeats&lt;/span&gt;
+  &lt;span class=&quot;kd&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;kt&quot;&gt;void&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;sendHeartBeats&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;HeartbeatsRequest&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;heartbeatsRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+    &lt;span class=&quot;k&quot;&gt;try&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+      &lt;span class=&quot;nc&quot;&gt;ObjectMapper&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;mapper&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;ObjectMapper&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+      &lt;span class=&quot;nc&quot;&gt;HttpResponse&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;httpClient&lt;/span&gt;
+          &lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;putHttpRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;/registry/heartbeats&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;kc&quot;&gt;null&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;mapper&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;writeValueAsString&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;heartbeatsRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;));&lt;/span&gt;
+  
+      &lt;span class=&quot;k&quot;&gt;if&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;==&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;HttpStatus&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;SC_OK&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+        &lt;span class=&quot;no&quot;&gt;LOGGER&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;info&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;HEARTBEATS SUCCESS&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+      &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;else&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+        &lt;span class=&quot;k&quot;&gt;throw&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;OperationException&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;
+            &lt;span class=&quot;s&quot;&gt;&quot;heartbeats fails, statusCode = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getStatusCode&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;; message = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getMessage&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;()&lt;/span&gt;
+                &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;&quot;; content = &quot;&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;+&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;response&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getContent&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;());&lt;/span&gt;
+      &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+    &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;catch&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;IOException&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+      &lt;span class=&quot;k&quot;&gt;throw&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;OperationException&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;
+          &lt;span class=&quot;s&quot;&gt;&quot;heartbeats fails &quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+    &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+  &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;    &lt;/div&gt;
+  &lt;/li&gt;
+&lt;/ul&gt;
+
+&lt;p&gt;2.3 更多客户端API介绍，参考客户端说明文档 &lt;a href=&quot;https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client&quot;&gt;https://github.com/apache/servicecomb-java-chassis/tree/master/clients/service-center-client&lt;/a&gt;&lt;/p&gt;
+
+&lt;h2 id=&quot;3-servicecenter客户端实践&quot;&gt;3. ServiceCenter客户端实践&lt;/h2&gt;
+&lt;p&gt;3.1 实践准备&lt;/p&gt;
+&lt;ul&gt;
+  &lt;li&gt;启动ServiceComb服务中心：&lt;a href=&quot;http://servicecomb.apache.org/cn/docs/service-center/install/&quot;&gt;http://servicecomb.apache.org/cn/docs/service-center/install/&lt;/a&gt;&lt;/li&gt;
+  &lt;li&gt;下载演示代码：&lt;a href=&quot;https://github.com/zaneChou1/spring-boot-servicecenter&quot;&gt;https://github.com/zaneChou1/spring-boot-servicecenter&lt;/a&gt;&lt;/li&gt;
+&lt;/ul&gt;
+
+&lt;p&gt;3.2 provider端启动服务，通过客户端注册到ServiceCenter&lt;br /&gt;
+运行provider模块，启动helloServer服务，并调用客户端API创建客户端对象、创建helloServer服务和实例对象、注册服务和实例到servicecomb 服务中心，并保持30s一次心跳，代码实现如下。&lt;/p&gt;
+&lt;div class=&quot;language-java highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;  &lt;span class=&quot;kd&quot;&gt;public&lt;/span&gt; &lt;span class=&quot;kd&quot;&gt;static&lt;/span&gt; &lt;span class=&quot;kt&quot;&gt;void&lt;/span&gt; &lt;span class=&quot;nf&quot;&gt;registerMicroservice&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(){&lt;/span&gt;
+     &lt;span class=&quot;c1&quot;&gt;//new ServiceCenterClient object&lt;/span&gt;
+     &lt;span class=&quot;nc&quot;&gt;ServiceCenterClient&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;sc&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;ServiceCenterClient&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+     
+     &lt;span class=&quot;c1&quot;&gt;//new Microservice object and setting properties and serviceName is necessary&lt;/span&gt;
+     &lt;span class=&quot;nc&quot;&gt;Microservice&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;microservice&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;Microservice&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;microservice&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setServiceId&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;1111&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;microservice&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setServiceName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;HelloServer&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     &lt;span class=&quot;c1&quot;&gt;//register microservice to service-center&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;sc&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;registerMicroservice&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;microservice&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     
+     &lt;span class=&quot;c1&quot;&gt;//new MicroserviceInstance object and bind server IP and port&lt;/span&gt;
+     &lt;span class=&quot;nc&quot;&gt;MicroserviceInstance&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;instance&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;MicroserviceInstance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+     &lt;span class=&quot;nc&quot;&gt;List&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;gt;&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;endPoints&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;ArrayList&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;gt;();&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;endPoints&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;add&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;rest://127.0.0.1:8080/&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;instance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setEndpoints&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;endPoints&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     &lt;span class=&quot;c1&quot;&gt;//setting instance hostName, instanceId and hostName is necessary&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;instance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setHostName&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;test&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;instance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;setInstanceId&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;2222&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     &lt;span class=&quot;c1&quot;&gt;//register microservice instance to service-center&lt;/span&gt;
+     &lt;span class=&quot;n&quot;&gt;sc&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;registerMicroserviceInstance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;instance&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;microservice&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getServiceId&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;());&lt;/span&gt;
+     
+     &lt;span class=&quot;c1&quot;&gt;//send a heartbeat every 30s&lt;/span&gt;
+     &lt;span class=&quot;nc&quot;&gt;HeartbeatsRequest&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;heartbeatsRequest&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;HeartbeatsRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;1111&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;2222&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+     &lt;span class=&quot;k&quot;&gt;while&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;kc&quot;&gt;true&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;){&lt;/span&gt;
+       &lt;span class=&quot;n&quot;&gt;sc&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;sendHeartBeats&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;heartbeatsRequest&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+       &lt;span class=&quot;k&quot;&gt;try&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+         &lt;span class=&quot;nc&quot;&gt;Thread&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;sleep&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;mi&quot;&gt;30000&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+       &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;catch&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;InterruptedException&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;{&lt;/span&gt;
+         &lt;span class=&quot;n&quot;&gt;e&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;printStackTrace&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+       &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+     &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+  &lt;span class=&quot;o&quot;&gt;}&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
+&lt;p&gt;查看service-center的UI显示如下，helloServer服务注册到服务中心成功，且有一个服务实例test。 &lt;br /&gt;
+&lt;img src=&quot;/assets/images/client/sc-sample-UI.png&quot; alt=&quot;&quot; /&gt;&lt;br /&gt;
+访问provider服务监听的8080端口，返回“Hello Spring-Boot-ServiceCenter !”。&lt;br /&gt;
+&lt;img src=&quot;/assets/images/client/sc-sample-provider.png&quot; alt=&quot;&quot; /&gt;&lt;/p&gt;
+
+&lt;p&gt;3.3 consumer端通过客户端发现服务实例，发起服务调用&lt;br /&gt;
+运行consumer模块，启动consumer服务，调用客户端API新建客户端对象、发现helloServer服务实例、获取服务监听的IP和端口，最后调用provider端helloServer服务返回结果。&lt;/p&gt;
+&lt;div class=&quot;language-java highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;&lt;span class=&quot;c1&quot;&gt;//find service instance&lt;/span&gt;
+&lt;span class=&quot;nc&quot;&gt;ServiceCenterClient&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;sc&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;ServiceCenterClient&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+&lt;span class=&quot;nc&quot;&gt;MicroserviceInstancesResponse&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;instances&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;sc&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getMicroserviceInstanceList&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;1111&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+&lt;span class=&quot;c1&quot;&gt;//get IP and port that service is listening on&lt;/span&gt;
+&lt;span class=&quot;no&quot;&gt;URI&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;endpointURIBuilder&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;URIBuilder&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;instances&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getInstances&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;().&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;get&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;mi&quot;&gt;0&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;).&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getEndpoints&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;().&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;get&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;mi&quot;&gt;0&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;)).&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;build&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+&lt;span class=&quot;kt&quot;&gt;int&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;port&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;endpointURIBuilder&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getPort&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;host&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;endpointURIBuilder&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getHost&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+
+&lt;span class=&quot;c1&quot;&gt;//call service&lt;/span&gt;
+&lt;span class=&quot;nc&quot;&gt;RestTemplate&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;restTemplate&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;k&quot;&gt;new&lt;/span&gt; &lt;span class=&quot;nc&quot;&gt;RestTemplate&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+&lt;span class=&quot;nc&quot;&gt;ResponseEntity&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;&amp;gt;&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;result&lt;/span&gt; &lt;span class=&quot;o&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;restTemplate&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getForEntity&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;http://&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;+&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;host&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;+&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;:&quot;&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;+&lt;/span&gt;&lt;span class=&quot;n&quot;&gt;port&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;,&lt;/span&gt;&lt;span class=&quot;nc&quot;&gt;String&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;class&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;);&lt;/span&gt;
+&lt;span class=&quot;k&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;n&quot;&gt;result&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;.&lt;/span&gt;&lt;span class=&quot;na&quot;&gt;getBody&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;();&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
+&lt;p&gt;访问consumer端监听的8081端口，返回helloServer的响应结果“Hello Spring-Boot-ServiceCenter !”，consumer端通过ServiceComb服务注册中心调用provider端服务成功。  &lt;br /&gt;
+&lt;img src=&quot;/assets/images/client/sc-sample-consumer.png&quot; alt=&quot;&quot; /&gt;&lt;/p&gt;</content><author><name>Zhou Zhongyuan</name></author><category term="ServiceCenter" /><category term="Client" /><summary type="html">使用ServiceComb客户端轻松调用ServiceCenter</summary></entry><entry xml:lang="cn"><title type="html">与Apache ServiceComb一起玩开源-北邮站 (PPT Download)</title><link href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" rel="alternate" type="text/html" title="与Apache ServiceComb一起玩开源-北邮站 (PPT Download)" /><published>2019-11-20T00:00:00+08:00</published><updated>2019-11-21T15:18:43+08:00</updated><id>/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT</id><content type="html" xml:base="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/">&lt;p&gt;近日，Apache ServiceComb与北京邮电大学“乐群学堂”联合举办“与Apache ServiceComb一起玩开源”讲座。Apache ServiceComb PMC成员马彬与华为开源软件架构师郑志鹏，为北邮的同学们带来“ServiceComb带你走进开源”和“使用ServiceComb快速开发高并发高可用电商系统实践使用微服务架构快速开发万级TPS高可用电商系统”的精彩演讲以及现场教学互动。&lt;/p&gt;
 
 &lt;p&gt;本次讲座得到北邮计算机学院闫博、徐飒等老师以及广大同学的鼎力支持和参与。报名通道开放伊始，原定200个的参会名额即被定满，经过老师们积极协调临时增加了部分名额，但是由于场地资源有限，这次没有报上名的同学，期待下次再会面啦&amp;gt;_&amp;lt;~~&lt;/p&gt;
 
@@ -234,70 +437,7 @@
 
 &lt;p&gt;[4] Servicecomb Toolkit https://github.com/apache/servicecomb-toolkit&lt;/p&gt;
 
-&lt;p&gt;[5] 加入Servicecomb社区  http://servicecomb.incubator.apache.org/cn/docs/join_the_community/&lt;/p&gt;</content><author><name>Qian Jia</name><email>chanjarster@gmail.com</email><uri>https://github.com/chanjarster</uri></author><category term="微服务" /><summary type="html">本文将介绍如何规范你的OpenAPI Spec文档</summary></entry><entry xml:lang="en"><title type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)</title><link href="/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/" rel="alternate" type="text/html" title="Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)" /><published>2019-09-20T00:00:00+08:00</published><updated>2019-09-23T17:18:43+08:00</updated><id>/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report</id><content type="html" xml:base="/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/">&lt;p&gt;On September 20, 2019, at the Shanghai World Expo Center in China, the Apache ServiceComb community held microservice Co-Located event at the HUAWEI CONNECT 2019, that concluded successfully.&lt;/p&gt;
-
-&lt;p&gt;The event invited the chairman of the Apache Foundation, the chairman of the Apache Incubator Project Management Committee, Apache Member, Apache Committer, and Huawei Cloud PaaS team architect. They shared the “Apache Explained”, “The Apache Incubator”, “ServiceComb Incubating Journey”, “Apache ServiceComb-Innovative Microservices”, “HUAWEI CLOUD Microservice Tool Improves Development Efficiency”, etc. Many micro-service technologies and experience. ServiceComb community has also released a series of innovative new projects to assist user solve pain points of microservice.&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Session 1: The Apache Way&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;The Apache Software Foundation is the world’s largest open source foundation and currently has more than 300 open source projects covering big data, cloud computing, server and web frameworks, build management, content management, and the Internet of Things. Foundation members introduced the Apache Software Foundation, open source community governance principles, and the operating mechanism of the Apache incubator, and shared the Apache project’s successful incubation experience with Huawei-funded project Apache ServiceComb.&lt;/p&gt;
-
-&lt;p&gt;&lt;a href=&quot;/assets/slides/20190920/EN/The_Apache_Way_En.pdf&quot;&gt;PDF Download&lt;/a&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/apache.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Apache Explained&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Craig Russell, Chairman of the ASF, Apache Software Foundation:&lt;/strong&gt; A detailed introduction to the history and current state of the Apache Foundation and its core principles.&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/introduction.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;The Apache Incubator&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Justin Mclean, Chairman of the Apache IPMC, Apache Software Foundation:&lt;/strong&gt;  Explains the operating mechanism of the Apache incubator and the features of the Apache protocol, and the release process for the Apache project.&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/process.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;ServiceComb Incubating Journey&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Willem Jiang, Huawei Open Source Expert, ASF Member:&lt;/strong&gt; Shared the practical experience of Huawei’s donated Apache ServiceComb successful incubation, and gave its own summary and suggestions on how to better develop the open source community.&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/incubation.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
-
-&lt;hr /&gt;
-&lt;p&gt;&lt;strong&gt;Session 2: Innovative Microservices for More Efficient Development&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;The Apache ServiceComb community has listened carefully to the pain points encountered by users implementing the microservices architecture. The first half of this topic will share these pain points and incubate projects to solve some pain points. I hope to discuss with users how to solve the problems in micro-service practice. The second half of this topic will introduce the micro-service tool innovation practices that work hand-in-hand with users.&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/servicecomb.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Apache ServiceComb-Innovative Microservices&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;a href=&quot;/assets/slides/20190920/EN/Apache_ServiceComb-Innovative_Microservices.pdf&quot;&gt;PDF Download&lt;/a&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Ma Bin, Huawei Open Source Architect, Apache Committer:&lt;/strong&gt; Interpret the innovative project architecture, roadmap and scenario cases launched by the ServiceComb community for user pain points, including: multi-language operating environment, micro-service contract tools, heterogeneous communication in service centers, distributed configuration centers, micro-service authentication; The convening order calls for more interested fans to contribute to the open source community.&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/innovative.jpg&quot; alt=&quot;2&quot; /&gt;&lt;/p&gt;
-
-&lt;hr /&gt;
-
-&lt;p&gt;&lt;strong&gt;HUAWEI CLOUD Microservice Tool Improves Development Efficiency&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;a href=&quot;/assets/slides/20190920/EN/HUAWEI_CLOUD_Microservice_Tool_Improves_Development_Efficiency.pdf&quot;&gt;PDF Download&lt;/a&gt;&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Wang Qijun, Huawei Cloud PaaS Architect:&lt;/strong&gt; Based on the practice of ServiceComb, Huawei Cloud Micro Service shared the micro-service splitting tools and contract management tools, which are the two developers/users with the highest attention.&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/efficiency.jpg&quot; alt=&quot;4&quot; /&gt;&lt;/p&gt;
-
-&lt;hr /&gt;
-
-&lt;p&gt;&lt;strong&gt;About the Apache ServiceComb&lt;/strong&gt;：&lt;/p&gt;
-
-&lt;p&gt;Apache ServiceComb, the main code of the Apache Software Foundation Incubation Project, donated by Huawei Cloud, is dedicated to helping enterprises easily build cloud native applications and traditional enterprise business rapid micro-services, helping users quickly develop micro-services through a series of solutions to achieve these Efficient operation and maintenance management of microservice applications. It has a complete micro-service ecological stack, no vendor lock-in, currently incubating with Apache Way, and has a number of non-Huawei commercial users outside of Huawei’s business such as consumer cloud, cloud EI, cloud security, cloud core, and community. And developers are also increasingly diverse.&lt;/p&gt;
-
-&lt;hr /&gt;
-&lt;p&gt;&lt;strong&gt;more questions, welcome to scan the QR code or WeChat to add “ServiceComb Assistant&lt;/strong&gt;
-&lt;img src=&quot;/assets/images/QRcode.png&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;</content><author><name>Mabin</name></author><category term="microservice" /><category term="Meetup" /><summary type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT)</summary></entry><entry xml:lang="cn"><title type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)</title><link href="/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/" rel="alternate" type="text/html" title="Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)" /><published>2019-09-20T00:00:00+08:00</published><updated>2019-09-23T17:18:43+08:00</updated><id>/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report</id><content type="html" xml:base="/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/">&lt;p&gt;北京时间2019年09月20日，Apache ServiceComb社区在中国上海世博中心举办的华为全链接大会组织了微服务同场活动 Apache ServiceComb Meetup，并圆满落下帷幕。&lt;/p&gt;
+&lt;p&gt;[5] 加入Servicecomb社区  http://servicecomb.incubator.apache.org/cn/docs/join_the_community/&lt;/p&gt;</content><author><name>Qian Jia</name><email>chanjarster@gmail.com</email><uri>https://github.com/chanjarster</uri></author><category term="微服务" /><summary type="html">本文将介绍如何规范你的OpenAPI Spec文档</summary></entry><entry xml:lang="cn"><title type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)</title><link href="/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/" rel="alternate" type="text/html" title="Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)" /><published>2019-09-20T00:00:00+08:00</published><updated>2019-09-23T17:18:43+08:00</updated><id>/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report</id><content type="html" xml:base="/cn/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/">&lt;p&gt;北京时间2019年09月20日，Apache ServiceComb社区在中国上海世博中心举办的华为全链接大会组织了微服务同场活动 Apache ServiceComb Meetup，并圆满落下帷幕。&lt;/p&gt;
 
 &lt;p&gt;本次活动邀请了Apache基金会主席、Apache孵化器项目管理委员会主席、Apache Member、Apache Committer、华为云PaaS团队架构师，携手为大家分享了Apache基金会介绍、Apache 孵化器的运作、ServiceComb的Apache孵化之路分享、Apache ServiceComb：微服务创新项目解读、华为云微服务工具解放开发者等诸多微服务技术及经验，ServiceComb社区也重磅发布了一系列解决用户应用微服务化痛点的创新新品。&lt;/p&gt;
 
@@ -360,7 +500,70 @@
 
 &lt;hr /&gt;
 &lt;p&gt;&lt;strong&gt;如您有更多问题关于Aapche ServiceComb，欢迎您扫码或微信添加“ServiceComb小助手”，我们将认真对待您的每一个问题&lt;/strong&gt;
-&lt;img src=&quot;/assets/images/QRcode.png&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;</content><author><name>Dean Lee</name></author><category term="microservice" /><category term="Meetup" /><summary type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT)</summary></entry><entry xml:lang="cn"><title type="html">如何给微服务架构的项目做验收测试？</title><link href="/cn/docs/how-to-do-microservice-accept-test/" rel="alternate" type="text/html" title="如何给微服务架构的项目做验收测试？" /><published>2019-07-04T00:00:00+08:00</published><updated>2019-07-04T10:37:43+08:00</updated><id>/cn/docs/how-to-do-microservice-accept-test</id><content type="html" xml:base="/cn/docs/how-to-do-microservice-accept-test/">&lt;h3 id=&quot;如何给微服务架构的项目做验收测试&quot;&gt;如何给微服务架构的项目做验收测试？&lt;/h3&gt;
+&lt;img src=&quot;/assets/images/QRcode.png&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;</content><author><name>Dean Lee</name></author><category term="microservice" /><category term="Meetup" /><summary type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT)</summary></entry><entry xml:lang="en"><title type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)</title><link href="/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/" rel="alternate" type="text/html" title="Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT Download)" /><published>2019-09-20T00:00:00+08:00</published><updated>2019-09-23T17:18:43+08:00</updated><id>/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report</id><content type="html" xml:base="/docs/Apache-ServiceComb-Meetup-2019-Shanghai-Report/">&lt;p&gt;On September 20, 2019, at the Shanghai World Expo Center in China, the Apache ServiceComb community held microservice Co-Located event at the HUAWEI CONNECT 2019, that concluded successfully.&lt;/p&gt;
+
+&lt;p&gt;The event invited the chairman of the Apache Foundation, the chairman of the Apache Incubator Project Management Committee, Apache Member, Apache Committer, and Huawei Cloud PaaS team architect. They shared the “Apache Explained”, “The Apache Incubator”, “ServiceComb Incubating Journey”, “Apache ServiceComb-Innovative Microservices”, “HUAWEI CLOUD Microservice Tool Improves Development Efficiency”, etc. Many micro-service technologies and experience. ServiceComb community has also released a series of innovative new projects to assist user solve pain points of microservice.&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Session 1: The Apache Way&lt;/strong&gt;&lt;/p&gt;
+
+&lt;p&gt;The Apache Software Foundation is the world’s largest open source foundation and currently has more than 300 open source projects covering big data, cloud computing, server and web frameworks, build management, content management, and the Internet of Things. Foundation members introduced the Apache Software Foundation, open source community governance principles, and the operating mechanism of the Apache incubator, and shared the Apache project’s successful incubation experience with Huawei-funded project Apache ServiceComb.&lt;/p&gt;
+
+&lt;p&gt;&lt;a href=&quot;/assets/slides/20190920/EN/The_Apache_Way_En.pdf&quot;&gt;PDF Download&lt;/a&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/apache.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Apache Explained&lt;/strong&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Craig Russell, Chairman of the ASF, Apache Software Foundation:&lt;/strong&gt; A detailed introduction to the history and current state of the Apache Foundation and its core principles.&lt;/p&gt;
+
+&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/introduction.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;The Apache Incubator&lt;/strong&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Justin Mclean, Chairman of the Apache IPMC, Apache Software Foundation:&lt;/strong&gt;  Explains the operating mechanism of the Apache incubator and the features of the Apache protocol, and the release process for the Apache project.&lt;/p&gt;
+
+&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/process.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;ServiceComb Incubating Journey&lt;/strong&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Willem Jiang, Huawei Open Source Expert, ASF Member:&lt;/strong&gt; Shared the practical experience of Huawei’s donated Apache ServiceComb successful incubation, and gave its own summary and suggestions on how to better develop the open source community.&lt;/p&gt;
+
+&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/incubation.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
+
+&lt;hr /&gt;
+&lt;p&gt;&lt;strong&gt;Session 2: Innovative Microservices for More Efficient Development&lt;/strong&gt;&lt;/p&gt;
+
+&lt;p&gt;The Apache ServiceComb community has listened carefully to the pain points encountered by users implementing the microservices architecture. The first half of this topic will share these pain points and incubate projects to solve some pain points. I hope to discuss with users how to solve the problems in micro-service practice. The second half of this topic will introduce the micro-service tool innovation practices that work hand-in-hand with users.&lt;/p&gt;
+
+&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/servicecomb.jpg&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Apache ServiceComb-Innovative Microservices&lt;/strong&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;a href=&quot;/assets/slides/20190920/EN/Apache_ServiceComb-Innovative_Microservices.pdf&quot;&gt;PDF Download&lt;/a&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Ma Bin, Huawei Open Source Architect, Apache Committer:&lt;/strong&gt; Interpret the innovative project architecture, roadmap and scenario cases launched by the ServiceComb community for user pain points, including: multi-language operating environment, micro-service contract tools, heterogeneous communication in service centers, distributed configuration centers, micro-service authentication; The convening order calls for more interested fans to contribute to the open source community.&lt;/p&gt;
+
+&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/innovative.jpg&quot; alt=&quot;2&quot; /&gt;&lt;/p&gt;
+
+&lt;hr /&gt;
+
+&lt;p&gt;&lt;strong&gt;HUAWEI CLOUD Microservice Tool Improves Development Efficiency&lt;/strong&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;a href=&quot;/assets/slides/20190920/EN/HUAWEI_CLOUD_Microservice_Tool_Improves_Development_Efficiency.pdf&quot;&gt;PDF Download&lt;/a&gt;&lt;/p&gt;
+
+&lt;p&gt;&lt;strong&gt;Wang Qijun, Huawei Cloud PaaS Architect:&lt;/strong&gt; Based on the practice of ServiceComb, Huawei Cloud Micro Service shared the micro-service splitting tools and contract management tools, which are the two developers/users with the highest attention.&lt;/p&gt;
+
+&lt;p&gt;&lt;img src=&quot;/assets/images/hc2019/efficiency.jpg&quot; alt=&quot;4&quot; /&gt;&lt;/p&gt;
+
+&lt;hr /&gt;
+
+&lt;p&gt;&lt;strong&gt;About the Apache ServiceComb&lt;/strong&gt;：&lt;/p&gt;
+
+&lt;p&gt;Apache ServiceComb, the main code of the Apache Software Foundation Incubation Project, donated by Huawei Cloud, is dedicated to helping enterprises easily build cloud native applications and traditional enterprise business rapid micro-services, helping users quickly develop micro-services through a series of solutions to achieve these Efficient operation and maintenance management of microservice applications. It has a complete micro-service ecological stack, no vendor lock-in, currently incubating with Apache Way, and has a number of non-Huawei commercial users outside of Huawei’s business such as consumer cloud, cloud EI, cloud security, cloud core, and community. And developers are also increasingly diverse.&lt;/p&gt;
+
+&lt;hr /&gt;
+&lt;p&gt;&lt;strong&gt;more questions, welcome to scan the QR code or WeChat to add “ServiceComb Assistant&lt;/strong&gt;
+&lt;img src=&quot;/assets/images/QRcode.png&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;</content><author><name>Mabin</name></author><category term="microservice" /><category term="Meetup" /><summary type="html">Apache ServiceComb Meetup -Shanghai 2019.09.20 Report (PPT)</summary></entry><entry xml:lang="cn"><title type="html">如何给微服务架构的项目做验收测试？</title><link href="/cn/docs/how-to-do-microservice-accept-test/" rel="alternate" type="text/html" title="如何给微服务架构的项目做验收测试？" /><published>2019-07-04T00:00:00+08:00</published><updated>2019-07-04T10:37:43+08:00</updated><id>/cn/docs/how-to-do-microservice-accept-test</id><content type="html" xml:base="/cn/docs/how-to-do-microservice-accept-test/">&lt;h3 id=&quot;如何给微服务架构的项目做验收测试&quot;&gt;如何给微服务架构的项目做验收测试？&lt;/h3&gt;
 
 &lt;p&gt;基于微服务架构的应用相对于单体架构的应用而言在验收测试阶段具有以下挑战：&lt;/p&gt;
 
@@ -814,167 +1017,4 @@
 
 &lt;hr /&gt;
 &lt;p&gt;&lt;strong&gt;more questions, welcome to scan the QR code or WeChat to add “ServiceComb Assistant&lt;/strong&gt;
-&lt;img src=&quot;/assets/images/QRcode.png&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;</content><author><name>Mabin</name></author><category term="Microservice" /><category term="Meetup" /><summary type="html">Apache ServiceComb Meetup</summary></entry><entry xml:lang="cn"><title type="html">ServiceComb Pack 0.4.0 集成发现服务 : Spring Cloud Eureka</title><link href="/cn/docs/servicecomb-pack-eureka/" rel="alternate" type="text/html" title="ServiceComb Pack 0.4.0 集成发现服务 : Spring Cloud Eureka" /><published>2019-04-15T00:00:00+08:00</published><updated>2019-04-15T19:30:00+08:00</updated><id>/cn/docs/servicecomb-pack-eureka</id><content type="html" xml:base="/cn/docs/servicecomb-pack-eureka/">&lt;p&gt;ServiceComb Pack 从 0.4.0 版本开始支持将 Alpha 服务实例注册到发现服务 Eureka 中，Omega 端的程序通过注册中心 Eureka 就可以连接 Alpha 服务&lt;/p&gt;
-
-&lt;h3 id=&quot;编译支持-eureka-的版本&quot;&gt;编译支持 Eureka 的版本&lt;/h3&gt;
-
-&lt;p&gt;默认发行版不包含 Eureka 的支持，你需要使用 &lt;code class=&quot;highlighter-rouge&quot;&gt;-Pspring-cloud-eureka&lt;/code&gt; 参数编译支持 Eureka 的版本&lt;/p&gt;
-
-&lt;div class=&quot;language-bash highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;git clone https://github.com/apache/servicecomb-pack.git
-&lt;span class=&quot;nb&quot;&gt;cd &lt;/span&gt;servicecomb-pack
-mvn clean &lt;span class=&quot;nb&quot;&gt;install&lt;/span&gt; &lt;span class=&quot;nt&quot;&gt;-DskipTests&lt;/span&gt;&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;&lt;span class=&quot;nb&quot;&gt;true&lt;/span&gt; &lt;span class=&quot;nt&quot;&gt;-Pspring-boot-2&lt;/span&gt;,spring-cloud-eureka
-&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
-
-&lt;h3 id=&quot;启动-eureka&quot;&gt;启动 Eureka&lt;/h3&gt;
-
-&lt;ul&gt;
-  &lt;li&gt;使用 Docker 启动 Eureka，更多方式请参考官方网站 &lt;a href=&quot;https://cloud.spring.io/spring-cloud-netflix/spring-cloud-netflix.html#spring-cloud-eureka-server&quot;&gt;https://cloud.spring.io&lt;/a&gt;&lt;/li&gt;
-&lt;/ul&gt;
-
-&lt;div class=&quot;language-bash highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;docker run &lt;span class=&quot;nt&quot;&gt;-d&lt;/span&gt; &lt;span class=&quot;nt&quot;&gt;-p&lt;/span&gt; 8761:8761 springcloud/eureka
-&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
-
-&lt;ul&gt;
-  &lt;li&gt;访问 Eureka UI&lt;/li&gt;
-&lt;/ul&gt;
-
-&lt;p&gt;在浏览器中访问 http://0.0.0.0:8761  ，能看到如下页面表示 Eureka 启动成功&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/2019-04-15-servicecomb-pack-eureka/eureka-main.png&quot; alt=&quot;eureka_main&quot; /&gt;&lt;/p&gt;
-
-&lt;h3 id=&quot;启动-alpha&quot;&gt;启动 Alpha&lt;/h3&gt;
-
-&lt;p&gt;注册中心功能通过设置  &lt;code class=&quot;highlighter-rouge&quot;&gt;eureka.client.enabled=true&lt;/code&gt; 参数开启&lt;/p&gt;
-
-&lt;div class=&quot;language-bash highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;java &lt;span class=&quot;nt&quot;&gt;-jar&lt;/span&gt; alpha-server-0.4.0-exec.jar &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--server&lt;/span&gt;.port&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;8090 &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--alpha&lt;/span&gt;.server.port&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;8080 &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--spring&lt;/span&gt;.datasource.url&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;&lt;span class=&quot;s2&quot;&gt;&quot;jdbc:postgresql://127.0.0.1:5432/saga?useSSL=false&quot;&lt;/span&gt; &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--spring&lt;/span&gt;.datasource.username&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;saga-user &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--spring&lt;/span&gt;.datasource.password&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;saga-password &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--eureka&lt;/span&gt;.client.enabled&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;&lt;span class=&quot;nb&quot;&gt;true&lt;/span&gt; &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--eureka&lt;/span&gt;.client.service-url.defaultZone&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;http://0.0.0.0:8761/eureka &lt;span class=&quot;se&quot;&gt;\&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;--spring&lt;/span&gt;.profiles.active&lt;span class=&quot;o&quot;&gt;=&lt;/span&gt;prd 
-&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
-&lt;p&gt;&lt;strong&gt;注意:&lt;/strong&gt; 更多 eureka 参数请参考 &lt;a href=&quot;https://cloud.spring.io/spring-cloud-netflix/multi/multi__service_discovery_eureka_clients.html#netflix-eureka-client-starter&quot;&gt;Spring Cloud Netflix 2.x&lt;/a&gt; &lt;a href=&quot;https://cloud.spring.io/spring-cloud-netflix/1.4.x/multi/multi__service_discovery_eureka_clients.html#netflix-eureka-client-starter&quot;&gt;Spring Cloud Netflix 1.x&lt;/a&gt;&lt;/p&gt;
-
-&lt;p&gt;Alpha 启动完毕后可以看到已经注册到 Eureka&lt;/p&gt;
-
-&lt;p&gt;&lt;img src=&quot;/assets/images/2019-04-15-servicecomb-pack-eureka/alpha_register_to_eureka.png&quot; alt=&quot;alpha_register_to_eureka&quot; /&gt;&lt;/p&gt;
-
-&lt;p&gt;执行命令 &lt;code class=&quot;highlighter-rouge&quot;&gt;curl http://127.0.0.1:8761/eureka/apps/&lt;/code&gt; 可以看到已经将 Alpha 的 gRPC 地址和端口注册到 Eureka 的 Metadata 中&lt;/p&gt;
-
-&lt;div class=&quot;language-xml highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;&lt;span class=&quot;nt&quot;&gt;&amp;lt;applications&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;versions__delta&amp;gt;&lt;/span&gt;1&lt;span class=&quot;nt&quot;&gt;&amp;lt;/versions__delta&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;apps__hashcode&amp;gt;&lt;/span&gt;UP_1_&lt;span class=&quot;nt&quot;&gt;&amp;lt;/apps__hashcode&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;application&amp;gt;&lt;/span&gt;
-    &lt;span class=&quot;nt&quot;&gt;&amp;lt;name&amp;gt;&lt;/span&gt;SERVICECOMB-ALPHA-SERVER&lt;span class=&quot;nt&quot;&gt;&amp;lt;/name&amp;gt;&lt;/span&gt;
-    &lt;span class=&quot;nt&quot;&gt;&amp;lt;instance&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;hostName&amp;gt;&lt;/span&gt;10.50.8.23&lt;span class=&quot;nt&quot;&gt;&amp;lt;/hostName&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;app&amp;gt;&lt;/span&gt;SERVICECOMB-ALPHA-SERVER&lt;span class=&quot;nt&quot;&gt;&amp;lt;/app&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;ipAddr&amp;gt;&lt;/span&gt;10.50.8.23&lt;span class=&quot;nt&quot;&gt;&amp;lt;/ipAddr&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;status&amp;gt;&lt;/span&gt;UP&lt;span class=&quot;nt&quot;&gt;&amp;lt;/status&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;overriddenstatus&amp;gt;&lt;/span&gt;UNKNOWN&lt;span class=&quot;nt&quot;&gt;&amp;lt;/overriddenstatus&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;port&lt;/span&gt; &lt;span class=&quot;na&quot;&gt;enabled=&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;true&quot;&lt;/span&gt;&lt;span class=&quot;nt&quot;&gt;&amp;gt;&lt;/span&gt;8090&lt;span class=&quot;nt&quot;&gt;&amp;lt;/port&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;securePort&lt;/span&gt; &lt;span class=&quot;na&quot;&gt;enabled=&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;false&quot;&lt;/span&gt;&lt;span class=&quot;nt&quot;&gt;&amp;gt;&lt;/span&gt;443&lt;span class=&quot;nt&quot;&gt;&amp;lt;/securePort&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;countryId&amp;gt;&lt;/span&gt;1&lt;span class=&quot;nt&quot;&gt;&amp;lt;/countryId&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;dataCenterInfo&lt;/span&gt; &lt;span class=&quot;na&quot;&gt;class=&lt;/span&gt;&lt;span class=&quot;s&quot;&gt;&quot;com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo&quot;&lt;/span&gt;&lt;span class=&quot;nt&quot;&gt;&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;name&amp;gt;&lt;/span&gt;MyOwn&lt;span class=&quot;nt&quot;&gt;&amp;lt;/name&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;/dataCenterInfo&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;leaseInfo&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;renewalIntervalInSecs&amp;gt;&lt;/span&gt;30&lt;span class=&quot;nt&quot;&gt;&amp;lt;/renewalIntervalInSecs&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;durationInSecs&amp;gt;&lt;/span&gt;90&lt;span class=&quot;nt&quot;&gt;&amp;lt;/durationInSecs&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;registrationTimestamp&amp;gt;&lt;/span&gt;1555317761365&lt;span class=&quot;nt&quot;&gt;&amp;lt;/registrationTimestamp&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;lastRenewalTimestamp&amp;gt;&lt;/span&gt;1555317761365&lt;span class=&quot;nt&quot;&gt;&amp;lt;/lastRenewalTimestamp&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;evictionTimestamp&amp;gt;&lt;/span&gt;0&lt;span class=&quot;nt&quot;&gt;&amp;lt;/evictionTimestamp&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;serviceUpTimestamp&amp;gt;&lt;/span&gt;1555317761067&lt;span class=&quot;nt&quot;&gt;&amp;lt;/serviceUpTimestamp&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;/leaseInfo&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;metadata&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;management.port&amp;gt;&lt;/span&gt;8090&lt;span class=&quot;nt&quot;&gt;&amp;lt;/management.port&amp;gt;&lt;/span&gt;
-        &lt;span class=&quot;nt&quot;&gt;&amp;lt;servicecomb-alpha-server&amp;gt;&lt;/span&gt;0.0.0.0:8080&lt;span class=&quot;nt&quot;&gt;&amp;lt;/servicecomb-alpha-server&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;/metadata&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;homePageUrl&amp;gt;&lt;/span&gt;http://10.50.8.23:8090/&lt;span class=&quot;nt&quot;&gt;&amp;lt;/homePageUrl&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;statusPageUrl&amp;gt;&lt;/span&gt;http://10.50.8.23:8090/actuator/info&lt;span class=&quot;nt&quot;&gt;&amp;lt;/statusPageUrl&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;healthCheckUrl&amp;gt;&lt;/span&gt;http://10.50.8.23:8090/actuator/health&lt;span class=&quot;nt&quot;&gt;&amp;lt;/healthCheckUrl&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;vipAddress&amp;gt;&lt;/span&gt;servicecomb-alpha-server&lt;span class=&quot;nt&quot;&gt;&amp;lt;/vipAddress&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;secureVipAddress&amp;gt;&lt;/span&gt;servicecomb-alpha-server&lt;span class=&quot;nt&quot;&gt;&amp;lt;/secureVipAddress&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;isCoordinatingDiscoveryServer&amp;gt;&lt;/span&gt;false&lt;span class=&quot;nt&quot;&gt;&amp;lt;/isCoordinatingDiscoveryServer&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;lastUpdatedTimestamp&amp;gt;&lt;/span&gt;1555317761365&lt;span class=&quot;nt&quot;&gt;&amp;lt;/lastUpdatedTimestamp&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;lastDirtyTimestamp&amp;gt;&lt;/span&gt;1555317760932&lt;span class=&quot;nt&quot;&gt;&amp;lt;/lastDirtyTimestamp&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;actionType&amp;gt;&lt;/span&gt;ADDED&lt;span class=&quot;nt&quot;&gt;&amp;lt;/actionType&amp;gt;&lt;/span&gt;
-    &lt;span class=&quot;nt&quot;&gt;&amp;lt;/instance&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;/application&amp;gt;&lt;/span&gt;
-&lt;span class=&quot;nt&quot;&gt;&amp;lt;/applications&amp;gt;&lt;/span&gt;
-&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
-
-&lt;h3 id=&quot;配置-omega-端&quot;&gt;配置 Omega 端&lt;/h3&gt;
-
-&lt;blockquote&gt;
-  &lt;p&gt;ServiceComb Pack 0.4.0 Omega 默认依赖 Spring Boot 2.x Spring 和 Spring Cloud Netflix 2.x ，如果你的 Omega 端项目依赖 Spring Boot 1.x 你可以使用 &lt;code class=&quot;highlighter-rouge&quot;&gt;-Pspring-boot-1&lt;/code&gt; 参数重新编译 Spring Boot 1.x 和 Spring Cloud Netflix 1.x 的版本&lt;/p&gt;
-&lt;/blockquote&gt;
-
-&lt;p&gt;修改原有 omega 端项目&lt;/p&gt;
-
-&lt;p&gt;增加以下依赖&lt;/p&gt;
-
-&lt;div class=&quot;language-xml highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;&lt;span class=&quot;nt&quot;&gt;&amp;lt;dependency&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;groupId&amp;gt;&lt;/span&gt;org.apache.servicecomb.pack&lt;span class=&quot;nt&quot;&gt;&amp;lt;/groupId&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;artifactId&amp;gt;&lt;/span&gt;omega-spring-cloud-eureka-starter&lt;span class=&quot;nt&quot;&gt;&amp;lt;/artifactId&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;version&amp;gt;&lt;/span&gt;${pack.version}&lt;span class=&quot;nt&quot;&gt;&amp;lt;/version&amp;gt;&lt;/span&gt;
-&lt;span class=&quot;nt&quot;&gt;&amp;lt;/dependency&amp;gt;&lt;/span&gt;
-&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
-
-&lt;p&gt;在 &lt;code class=&quot;highlighter-rouge&quot;&gt;application.yaml&lt;/code&gt; 添加下面的配置项&lt;/p&gt;
-
-&lt;div class=&quot;language-yaml highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;&lt;span class=&quot;na&quot;&gt;eureka&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt;
-  &lt;span class=&quot;na&quot;&gt;client&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt;
-    &lt;span class=&quot;na&quot;&gt;service-url&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt;
-      &lt;span class=&quot;na&quot;&gt;defaultZone&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;http://127.0.0.1:8761/eureka&lt;/span&gt;
-&lt;span class=&quot;na&quot;&gt;alpha&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt;
-  &lt;span class=&quot;na&quot;&gt;cluster&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt;
-    &lt;span class=&quot;na&quot;&gt;register&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt;
-      &lt;span class=&quot;na&quot;&gt;type&lt;/span&gt;&lt;span class=&quot;pi&quot;&gt;:&lt;/span&gt; &lt;span class=&quot;s&quot;&gt;eureka&lt;/span&gt;
-&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
-&lt;ul&gt;
-  &lt;li&gt;
-    &lt;p&gt;&lt;code class=&quot;highlighter-rouge&quot;&gt;eureka.client.service-url.defaultZone&lt;/code&gt; 配置 Eureka 注册中心的地址，更多 Eureka 客户端配置可以参考&lt;a href=&quot;https://cloud.spring.io/spring-cloud-netflix/multi/multi__service_discovery_eureka_clients.html#netflix-eureka-client-starter&quot;&gt;Spring Cloud Netflix 2.x&lt;/a&gt; 或 &lt;a href=&quot;https://cloud.spring.io/spring-cloud-netflix/1.4.x/multi/multi__service_discovery_eureka_clients.html#netflix-eureka-client-starter&quot;&gt;Spring Cloud Netflix 1.x&lt;/a&gt;&lt;/p&gt;
-  &lt;/li&gt;
-  &lt;li&gt;
-    &lt;p&gt;&lt;code class=&quot;highlighter-rouge&quot;&gt;alpha.cluster.register.type=eureka&lt;/code&gt; 配置 Omega 获取Alpha的方式是通过 Eureka 的注册中心&lt;/p&gt;
-  &lt;/li&gt;
-  &lt;li&gt;
-    &lt;p&gt;spring boot 版本兼容&lt;/p&gt;
-
-    &lt;p&gt;如果你的项目使用的不是 spring boot 2.1.1 版本，那么请参照此列表增加兼容的 spring-cloud-starter-consul-discovery 版本&lt;/p&gt;
-
-    &lt;table&gt;
-      &lt;thead&gt;
-        &lt;tr&gt;
-          &lt;th&gt;spring boot&lt;/th&gt;
-          &lt;th&gt;spring-cloud-starter-netflix-eureka-client&lt;/th&gt;
-        &lt;/tr&gt;
-      &lt;/thead&gt;
-      &lt;tbody&gt;
-        &lt;tr&gt;
-          &lt;td&gt;2.1.x.RELEASE&lt;/td&gt;
-          &lt;td&gt;2.1.1.RELEASE&lt;/td&gt;
-        &lt;/tr&gt;
-        &lt;tr&gt;
-          &lt;td&gt;2.0.x.RELEASE&lt;/td&gt;
-          &lt;td&gt;2.0.3.RELEASE&lt;/td&gt;
-        &lt;/tr&gt;
-      &lt;/tbody&gt;
-    &lt;/table&gt;
-
-    &lt;div class=&quot;language-xml highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;&lt;span class=&quot;nt&quot;&gt;&amp;lt;dependencyManagement&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;dependencies&amp;gt;&lt;/span&gt;
-    &lt;span class=&quot;nt&quot;&gt;&amp;lt;dependency&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;groupId&amp;gt;&lt;/span&gt;org.springframework.cloud&lt;span class=&quot;nt&quot;&gt;&amp;lt;/groupId&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;artifactId&amp;gt;&lt;/span&gt;spring-cloud-starter-netflix-eureka-client&lt;span class=&quot;nt&quot;&gt;&amp;lt;/artifactId&amp;gt;&lt;/span&gt;
-      &lt;span class=&quot;nt&quot;&gt;&amp;lt;version&amp;gt;&lt;/span&gt;2.0.3.RELEASE&lt;span class=&quot;nt&quot;&gt;&amp;lt;/version&amp;gt;&lt;/span&gt;
-    &lt;span class=&quot;nt&quot;&gt;&amp;lt;/dependency&amp;gt;&lt;/span&gt;
-  &lt;span class=&quot;nt&quot;&gt;&amp;lt;/dependencies&amp;gt;&lt;/span&gt;
-&lt;span class=&quot;nt&quot;&gt;&amp;lt;/dependencyManagement&amp;gt;&lt;/span&gt;
-&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;    &lt;/div&gt;
-  &lt;/li&gt;
-&lt;/ul&gt;</content><author><name>Zhang Lei</name><email>coolbeevip@gmail.com</email><uri>http://github.com/coolbeevip</uri></author><category term="ServiceComb Pack" /><category term="Spring Cloud Eureka" /><category term="Discovery" /><summary type="html">ServiceComb Pack 集成发现服务 Eureka</summary></entry></feed>
\ No newline at end of file
+&lt;img src=&quot;/assets/images/QRcode.png&quot; alt=&quot;1&quot; /&gt;&lt;/p&gt;</content><author><name>Mabin</name></author><category term="Microservice" /><category term="Meetup" /><summary type="html">Apache ServiceComb Meetup</summary></entry></feed>
\ No newline at end of file
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diff --git a/content/sitemap/index.html b/content/sitemap/index.html
index 6779fbf..37d1bf7 100644
--- a/content/sitemap/index.html
+++ b/content/sitemap/index.html
@@ -479,6 +479,8 @@
 
 <link rel="alternate" hreflang="cn" href="/cn/docs/playing-on-the-open-source-community-with-Apache-ServiceComb-BUPT/" />
 
+<link rel="alternate" hreflang="cn" href="/cn/docs/servicecomb-service-center-client/" />
+
 
   </div>
 </div>