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<meta itemprop="dateModified" content="August 15, 2017">
<div class="page__inner-wrap">
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<h1 class="page__title" itemprop="headline">本地开发与测试
</h1>
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<!-- <header><h4 class="nav__title"><i class="fa fa-file-text"></i> 在本页上</h4></header> -->
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<li><a href="#概念阐述" id="markdown-toc-概念阐述">概念阐述</a></li>
<li><a href="#启动本地服务中心" id="markdown-toc-启动本地服务中心">启动本地服务中心</a></li>
<li><a href="#mock机制启动服务中心" id="markdown-toc-mock机制启动服务中心">Mock机制启动服务中心</a></li>
</ul>
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</aside>
<h2 id="概念阐述">概念阐述</h2>
<p>本小节介绍如何在开发者本地进行消费者/提供者应用的开发调试。开发服务提供者请参考<a href="/cn/users/service-definition/">开发服务提供者章节</a>,开发服务消费者请参考<a href="/cn/users/develop-with-rest-template/">开发服务消费者章节</a>。服务提供者和消费提供者均需要连接到在远程的服务中心,为了本地微服务的开发和调试,本小节介绍了两种搭建本地服务中心的方法进行本地微服务调试:</p>
<ul>
<li>
<p><a href="#启动本地服务中心">启动本地服务中心</a></p>
</li>
<li>
<p><a href="#mock机制启动服务中心">通过local file模拟启动服务中心Mock机制</a></p>
</li>
</ul>
<p>服务中心是微服务框架中的重要组件,用于服务元数据以及服务实例元数据的管理和处理注册、发现。服务中心与微服务提供/消费者的逻辑关系下图所示:</p>
<p><img src="/assets/images/local_develop_test.png" alt="" /></p>
<h2 id="启动本地服务中心">启动本地服务中心</h2>
<ul>
<li>
<p><strong>步骤1</strong> 启动本地服务中心,可参考<a href="/cn/users/setup-environment/#运行service-center">运行Service Center指南</a></p>
</li>
<li>
<p><strong>步骤 2</strong> 启动本地轻量服务中心后,在服务提供/消费者的microservice.yaml文件中配置ServerCenter的地址和端口,示例代码:</p>
<div class="language-yaml highlighter-rouge"><div class="highlight"><pre class="highlight"><code> <span class="na">servicecomb</span><span class="pi">:</span>
<span class="na">service</span><span class="pi">:</span>
<span class="na">registry</span><span class="pi">:</span>
<span class="na">address</span><span class="pi">:</span> <span class="s">http://127.0.0.1:30100</span> <span class="c1">#服务中心地址及端口</span>
</code></pre></div> </div>
</li>
<li>
<p><strong>步骤 3</strong> 开发服务提供/消费者,启动微服务进行本地测试。</p>
</li>
</ul>
<h2 id="mock机制启动服务中心">Mock机制启动服务中心</h2>
<ul>
<li>
<p><strong>步骤 1</strong>新建本地服务中心定义文件registry.yaml,内容如下:</p>
<div class="language-yaml highlighter-rouge"><div class="highlight"><pre class="highlight"><code> <span class="na">springmvctest</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">id</span><span class="pi">:</span> <span class="s2">"</span><span class="s">001"</span>
<span class="na">version</span><span class="pi">:</span> <span class="s2">"</span><span class="s">1.0"</span>
<span class="na">appid</span><span class="pi">:</span> <span class="s">myapp</span> <span class="c1">#调试的服务id</span>
<span class="na">instances</span><span class="pi">:</span>
<span class="na">endpoints</span><span class="pi">:</span>
<span class="s">rest://127.0.0.1:8080</span>
</code></pre></div> </div>
<p>注意:mock机制需要自己准备契约,并且当前只支持在本地进行服务消费端(consumer)侧的调试,不支持服务提供者(provider)</p>
</li>
<li>
<p><strong>步骤 2</strong>在服务消费者Main函数首末添加如下代码:</p>
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code> <span class="kd">public</span> <span class="kd">class</span> <span class="nc">xxxClient</span> <span class="o">{</span>
<span class="kd">public</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">main</span><span class="o">(</span><span class="nc">String</span><span class="o">[]</span> <span class="n">args</span><span class="o">)</span> <span class="o">{</span>
<span class="nc">System</span><span class="o">.</span><span class="na">setProperty</span><span class="o">(</span><span class="s">"local.registry.file"</span><span class="o">,</span> <span class="s">"/path/registry.yaml"</span><span class="o">);</span>
<span class="c1">//your code</span>
<span class="nc">System</span><span class="o">.</span><span class="na">clearProperty</span><span class="o">(</span><span class="s">"local.registry.file"</span><span class="o">);</span>
<span class="o">}</span>
</code></pre></div> </div>
</li>
</ul>
<p>setProperty第二个参数填写registry.yaml的系统绝对路径,注意区分在不同系统下使用对应的路径分隔符。</p>
<ul>
<li><strong>步骤 3</strong>开发服务消费者,启动微服务进行本地测试。</li>
</ul>
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