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| Introduction |
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| 1 入门 |
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| 1.1 背景 |
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| 1.2 需求 |
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| 1.3 架构 |
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| 1.4 用法 |
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| 2 快速启动 |
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| 2.1 依赖 |
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| 2.2 成熟度 |
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| 3 配置 |
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| 3.1 XML配置 |
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| 3.2 属性配置 |
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| 3.3 API配置 |
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| 3.4 注解配置 |
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| 4 示例 |
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| 4.1 启动时检查 |
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| 4.2 集群容错 |
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| 4.3 负载均衡 |
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| 4.4 线程模型 |
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| 4.5 直连提供者 |
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| 4.6 只订阅 |
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| <a href="../demos/只注册.html"> |
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| 4.7 只注册 |
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| </a> |
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| <a href="../demos/静态服务.html"> |
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| 4.8 静态服务 |
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| <a href="../demos/多协议.html"> |
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| 4.9 多协议 |
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| </a> |
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| <li class="chapter " data-level="1.5.10" data-path="../demos/多注册中心.html"> |
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| <a href="../demos/多注册中心.html"> |
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| 4.10 多注册中心 |
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| </a> |
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| 4.11 服务分组 |
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| <a href="../demos/多版本.html"> |
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| 4.13 多版本 |
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| </a> |
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| <li class="chapter " data-level="1.5.13" data-path="../demos/分组聚合.html"> |
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| <a href="../demos/分组聚合.html"> |
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| 4.14 分组聚合 |
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| </a> |
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| <li class="chapter " data-level="1.5.14" data-path="../demos/参数验证.html"> |
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| <a href="../demos/参数验证.html"> |
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| 4.15 参数验证 |
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| </a> |
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| <li class="chapter " data-level="1.5.15" data-path="../demos/结果缓存.html"> |
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| <a href="../demos/结果缓存.html"> |
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| 4.16 结果缓存 |
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| </a> |
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| <li class="chapter " data-level="1.5.16" data-path="../demos/泛化引用.html"> |
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| <a href="../demos/泛化引用.html"> |
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| 4.17 泛化引用 |
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| </a> |
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| <li class="chapter " data-level="1.5.17" data-path="../demos/泛化实现.html"> |
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| <a href="../demos/泛化实现.html"> |
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| 4.18 泛化实现 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.18" data-path="../demos/回声测试.html"> |
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| <a href="../demos/回声测试.html"> |
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| 4.19 回声测试 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.19" data-path="../demos/上下文信息.html"> |
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| <a href="../demos/上下文信息.html"> |
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| 4.20 上下文信息 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.20" data-path="../demos/隐式传参.html"> |
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| <a href="../demos/隐式传参.html"> |
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| 4.21 隐式参数 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.21" data-path="../demos/异步调用.html"> |
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| <a href="../demos/异步调用.html"> |
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| 4.22 异步调用 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.22" data-path="../demos/本地调用.html"> |
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| <a href="../demos/本地调用.html"> |
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| 4.23 本地调用 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.23" data-path="../demos/参数回调.html"> |
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| <a href="../demos/参数回调.html"> |
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| 4.24 参数回调 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.24" data-path="../demos/事件通知.html"> |
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| <a href="../demos/事件通知.html"> |
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| 4.25 事件通知 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.25" data-path="../demos/本地存根.html"> |
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| <a href="../demos/本地存根.html"> |
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| 4.26 本地存根 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.26" data-path="../demos/本地伪装.html"> |
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| <a href="../demos/本地伪装.html"> |
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| 4.27 本地伪装 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.27" data-path="../demos/延迟暴露.html"> |
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| <a href="../demos/延迟暴露.html"> |
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| 4.28 延迟暴露 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.28" data-path="../demos/并发控制.html"> |
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| <a href="../demos/并发控制.html"> |
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| 4.29 并发控制 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.29" data-path="../demos/连接控制.html"> |
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| <a href="../demos/连接控制.html"> |
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| 4.30 连接控制 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.30" data-path="../demos/延迟连接.html"> |
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| <a href="../demos/延迟连接.html"> |
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| 4.31 延迟连接 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.31" data-path="../demos/粘滞连接.html"> |
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| <a href="../demos/粘滞连接.html"> |
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| 4.32 粘滞连接 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.32" data-path="../demos/令牌验证.html"> |
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| <a href="../demos/令牌验证.html"> |
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| 4.33 令牌验证 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.33" data-path="../demos/路由规则.html"> |
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| <a href="../demos/路由规则.html"> |
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| 4.34 路由规则 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.34" data-path="../demos/配置规则.html"> |
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| <a href="../demos/配置规则.html"> |
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| 4.35 配置规则 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.35" data-path="../demos/服务降级.html"> |
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| <a href="../demos/服务降级.html"> |
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| 4.36 服务降级 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.36" data-path="../demos/优雅停机.html"> |
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| <a href="../demos/优雅停机.html"> |
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| 4.37 优雅停机 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.37" data-path="../demos/主机绑定.html"> |
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| <a href="../demos/主机绑定.html"> |
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| 4.38 主机绑定 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.38" data-path="../demos/日志适配.html"> |
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| <a href="../demos/日志适配.html"> |
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| 4.39 日志适配 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.39" data-path="../demos/访问日志.html"> |
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| <a href="../demos/访问日志.html"> |
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| 4.40 访问日志 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.40" data-path="../demos/服务容器.html"> |
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| <a href="../demos/服务容器.html"> |
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| 4.41 服务容器 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.41" data-path="../demos/ReferenceConfig缓存.html"> |
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| <a href="../demos/ReferenceConfig缓存.html"> |
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| 4.42 Reference Config缓存 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.42" data-path="../demos/分布式事务.html"> |
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| <a href="../demos/分布式事务.html"> |
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| 4.43 分布式事务 |
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| </a> |
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| </li> |
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| </ul> |
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| </li> |
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| <li class="chapter " data-level="1.6" data-path="../reference-apiconf/api.html"> |
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| <a href="../reference-apiconf/api.html"> |
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| 5 API参考手册 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.7" data-path="../reference-xmlconf/introduction.html"> |
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| <a href="../reference-xmlconf/introduction.html"> |
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| 6 schema配置参考手册 |
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| </a> |
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| <ul class="articles"> |
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| <li class="chapter " data-level="1.7.1" data-path="../reference-xmlconf/dubbo-service.html"> |
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| <a href="../reference-xmlconf/dubbo-service.html"> |
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| 6.1 dubbo:service |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.7.2" data-path="../reference-xmlconf/dubbo-reference.html"> |
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| <a href="../reference-xmlconf/dubbo-reference.html"> |
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| 6.2 dubbo:reference |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.7.3" data-path="../reference-xmlconf/dubbo-protocol.html"> |
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| <a href="../reference-xmlconf/dubbo-protocol.html"> |
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| 6.3 dubbo:protocol |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.7.4" data-path="../reference-xmlconf/dubbo-registry.html"> |
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| <a href="../reference-xmlconf/dubbo-registry.html"> |
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| 6.4 dubbo:registry |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.7.5" data-path="../reference-xmlconf/dubbo-monitor.html"> |
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| <a href="../reference-xmlconf/dubbo-monitor.html"> |
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| 6.5 dubbo:monitor |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.7.6" data-path="../reference-xmlconf/dubbo-application.html"> |
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| <a href="../reference-xmlconf/dubbo-application.html"> |
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| 6.6 dubbo:application |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.7.7" data-path="../reference-xmlconf/dubbo-module.html"> |
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| <a href="../reference-xmlconf/dubbo-module.html"> |
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| 6.7 dubbo:module |
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| </a> |
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| </li> |
| |
| <li class="chapter " data-level="1.7.8" data-path="../reference-xmlconf/dubbo-provider.html"> |
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| <a href="../reference-xmlconf/dubbo-provider.html"> |
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| 6.8 dubbo:provider |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.7.9" data-path="../reference-xmlconf/dubbo-consumer.html"> |
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| <a href="../reference-xmlconf/dubbo-consumer.html"> |
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| 6.9 dubbo:consumer |
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| </a> |
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| </li> |
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| <a href="../reference-xmlconf/dubbo-method.html"> |
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| 6.10 dubbo:method |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.7.11" data-path="../reference-xmlconf/dubbo-argument.html"> |
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| <a href="../reference-xmlconf/dubbo-argument.html"> |
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| 6.11 dubbo:argument |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.7.12" data-path="../reference-xmlconf/dubbo-parameter.html"> |
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| <a href="../reference-xmlconf/dubbo-parameter.html"> |
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| 6.12 dubbo:parameter |
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| </a> |
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| </li> |
| |
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| </ul> |
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| <li class="chapter " data-level="1.8" data-path="introduction.html"> |
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| <a href="introduction.html"> |
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| 7 协议参考手册 |
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| </a> |
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| <ul class="articles"> |
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| <li class="chapter " data-level="1.8.1" data-path="dubbo.html"> |
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| <a href="dubbo.html"> |
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| 7.1 dubbo:// |
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| </a> |
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| 7.2 rmi// |
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| <li class="chapter " data-level="1.8.3" data-path="hessian.html"> |
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| <a href="hessian.html"> |
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| 7.3 hessian:// |
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| 7.4 http:// |
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| 7.5 webservice:// |
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| </a> |
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| <li class="chapter " data-level="1.8.6" data-path="thrift.html"> |
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| <a href="thrift.html"> |
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| 7.6 thrift:// |
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| 7.7 memcached:// |
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| </a> |
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| <li class="chapter " data-level="1.8.8" data-path="redis.html"> |
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| <a href="redis.html"> |
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| 7.8 redis:// |
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| </a> |
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| </li> |
| |
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| </ul> |
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| |
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| <a href="../reference-registry/introduction.html"> |
| |
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| 8 注册中心参考手册 |
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| </a> |
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| <ul class="articles"> |
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| <a href="../reference-registry/multicast.html"> |
| |
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| 8.1 Multicast注册中心 |
| |
| </a> |
| |
| |
| |
| </li> |
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| <li class="chapter " data-level="1.9.2" data-path="../reference-registry/zookeeper.html"> |
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| <a href="../reference-registry/zookeeper.html"> |
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| 8.2 Zookeeper注册中心 |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.9.3" data-path="../reference-registry/redis.html"> |
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| <a href="../reference-registry/redis.html"> |
| |
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| 8.3 Redis注册中心 |
| |
| </a> |
| |
| |
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| <li class="chapter " data-level="1.9.4" data-path="../reference-registry/simple.html"> |
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| <a href="../reference-registry/simple.html"> |
| |
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| 8.4 Simple注册中心 |
| |
| </a> |
| |
| |
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| </li> |
| |
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| <a href="../reference-telnet/telnet.html"> |
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| 9 telnet命令参考手册 |
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| </a> |
| |
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| <a href="../reference-maven/maven.html"> |
| |
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| 10 maven插件参考手册 |
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| </a> |
| |
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| 11 服务化最佳实践 |
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| <a href="../recommend.html"> |
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| 12 推荐用法 |
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| 13 容量规划 |
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| <a href=".." >7.2 rmi//</a> |
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| <blockquote> |
| <p><img src="../sources/images/check.gif" alt="warning">RMI协议采用JDK标准的java.rmi.*实现，采用阻塞式短连接和JDK标准序列化方式。</p> |
| <p><img src="../sources/images/warning-3.gif" alt="warning">如果正在使用RMI提供服务给外部访问（公司内网环境应该不会有攻击风险），同时应用里依赖了老的common-collections包（dubbo不会依赖这个包，请排查自己的应用有没有使用）的情况下，存在反序列化安全风险。</p> |
| <p>请检查应用： </p> |
| <ul> |
| <li>将commons-collections3 请升级到 <a href="https://commons.apache.org/proper/commons-collections/release_3_2_2.html" target="_blank">3.2.2版本</a> </li> |
| <li>将commons-collections4 请升级到 <a href="https://commons.apache.org/proper/commons-collections/release_4_1.html" target="_blank">4.1版本</a><br>新版本的commons-collections解决了该问题</li> |
| </ul> |
| </blockquote> |
| <p>如果服务接口继承了java.rmi.Remote接口，可以和原生RMI互操作，即：</p> |
| <ul> |
| <li>提供者用Dubbo的RMI协议暴露服务，消费者直接用标准RMI接口调用，</li> |
| <li>或者提供方用标准RMI暴露服务，消费方用Dubbo的RMI协议调用。</li> |
| </ul> |
| <p>如果服务接口没有继承java.rmi.Remote接口</p> |
| <ul> |
| <li>缺省Dubbo将自动生成一个com.xxx.XxxService$Remote的接口，并继承java.rmi.Remote接口，并以此接口暴露服务，</li> |
| <li>但如果设置了 <code><dubbo:protocol name="rmi" codec="spring" /></code>，将不生成$Remote接口，而使用Spring的RmiInvocationHandler接口暴露服务，和Spring兼容。</li> |
| </ul> |
| <p>定义 RMI 协议：</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:protocol</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"rmi"</span> <span class="hljs-attr">port</span>=<span class="hljs-string">"1099"</span> /></span> |
| </code></pre> |
| <p>设置默认协议：</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:provider</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"rmi"</span> /></span> |
| </code></pre> |
| <p>设置服务协议：</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:service</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"rmi"</span> /></span> |
| </code></pre> |
| <p>多端口：</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:protocol</span> <span class="hljs-attr">id</span>=<span class="hljs-string">"rmi1"</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"rmi"</span> <span class="hljs-attr">port</span>=<span class="hljs-string">"1099"</span> /></span> |
| <span class="hljs-tag"><<span class="hljs-name">dubbo:protocol</span> <span class="hljs-attr">id</span>=<span class="hljs-string">"rmi2"</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"rmi"</span> <span class="hljs-attr">port</span>=<span class="hljs-string">"2099"</span> /></span> |
| |
| <span class="hljs-tag"><<span class="hljs-name">dubbo:service</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"rmi1"</span> /></span> |
| </code></pre> |
| <p>Spring 兼容性：</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:protocol</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"rmi"</span> <span class="hljs-attr">codec</span>=<span class="hljs-string">"spring"</span> /></span> |
| </code></pre> |
| <p>Java标准的远程调用协议</p> |
| <ul> |
| <li>连接个数：多连接</li> |
| <li>连接方式：短连接</li> |
| <li>传输协议：TCP</li> |
| <li>传输方式：同步传输</li> |
| <li>序列化：Java标准二进制序列化</li> |
| <li>适用范围：传入传出参数数据包大小混合，消费者与提供者个数差不多，可传文件。</li> |
| <li>适用场景：常规远程服务方法调用，与原生RMI服务互操作</li> |
| </ul> |
| <p>(1) 约束：</p> |
| <ul> |
| <li>参数及返回值需实现Serializable接口</li> |
| <li>dubbo配置中的超时时间对rmi无效，需使用java启动参数设置：-Dsun.rmi.transport.tcp.responseTimeout=3000，参见下面的RMI配置</li> |
| </ul> |
| <p>(2) 配置：</p> |
| <p><strong>dubbo.properties</strong></p> |
| <pre><code>dubbo.service.protocol=rmi |
| </code></pre><p>(3) RMI配置：</p> |
| <pre><code class="lang-sh">java -Dsun.rmi.transport.tcp.responseTimeout=3000 |
| </code></pre> |
| <p>更多RMI优化参数请查看： |
| <a href="http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/rmi/sunrmiproperties.html" target="_blank">http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/rmi/sunrmiproperties.html</a></p> |
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