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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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4.7 只注册
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4.8 静态服务
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4.9 多协议
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4.10 多注册中心
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4.11 服务分组
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4.13 多版本
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4.14 分组聚合
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4.15 参数验证
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4.16 结果缓存
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4.17 泛化引用
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4.18 泛化实现
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4.19 回声测试
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4.20 上下文信息
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4.21 隐式参数
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4.22 异步调用
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4.23 本地调用
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4.24 参数回调
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4.25 事件通知
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4.26 本地存根
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4.27 本地伪装
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4.28 延迟暴露
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4.29 并发控制
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4.30 连接控制
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4.31 延迟连接
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4.32 粘滞连接
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4.33 令牌验证
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4.34 路由规则
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4.35 配置规则
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4.36 服务降级
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4.37 优雅停机
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4.38 主机绑定
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4.39 日志适配
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4.40 访问日志
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4.41 服务容器
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4.42 Reference Config缓存
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4.43 分布式事务
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5 API参考手册
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6 schema配置参考手册
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6.1 dubbo:service
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6.2 dubbo:reference
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6.3 dubbo:protocol
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6.4 dubbo:registry
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6.5 dubbo:monitor
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6.6 dubbo:application
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6.7 dubbo:module
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6.8 dubbo:provider
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6.9 dubbo:consumer
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6.10 dubbo:method
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6.11 dubbo:argument
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6.12 dubbo:parameter
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7 协议参考手册
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7.1 dubbo://
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7.2 rmi//
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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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7.6 thrift://
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7.7 memcached://
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7.8 redis://
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8 注册中心参考手册
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8.1 Multicast注册中心
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<li class="chapter " data-level="1.9.2" data-path="../reference-registry/zookeeper.html">
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8.2 Zookeeper注册中心
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8.3 Redis注册中心
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8.4 Simple注册中心
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9 telnet命令参考手册
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10 maven插件参考手册
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11 服务化最佳实践
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12 推荐用法
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13 容量规划
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14 基准测试工具包
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15 性能测试报告
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16 测试覆盖率报告
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<p>&#x65B9;&#x6CD5;&#x7EA7;&#x914D;&#x7F6E;&#xFF1A;<br>&#x914D;&#x7F6E;&#x7C7B;&#xFF1A;com.alibaba.dubbo.config.MethodConfig<br>&#x8BF4;&#x660E;&#xFF1A;&#x8BE5;&#x6807;&#x7B7E;&#x4E3A;|&lt;dubbo:service&gt;&#x6216;|&lt;dubbo:reference&gt;&#x7684;&#x5B50;&#x6807;&#x7B7E;&#xFF0C;&#x7528;&#x4E8E;&#x63A7;&#x5236;&#x5230;&#x65B9;&#x6CD5;&#x7EA7;&#xFF0C;</p>
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<th>&#x6807;&#x7B7E;</th>
<th>&#x5C5E;&#x6027;</th>
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<th>&#x7C7B;&#x578B;</th>
<th>&#x662F;&#x5426;&#x5FC5;&#x586B;</th>
<th>&#x7F3A;&#x7701;&#x503C;</th>
<th>&#x4F5C;&#x7528;</th>
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<td>&lt;dubbo:method&gt;</td>
<td>name</td>
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<td>string</td>
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<td></td>
<td>&#x6807;&#x8BC6;</td>
<td>&#x65B9;&#x6CD5;&#x540D;</td>
<td>1.0.8&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
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<td>&lt;dubbo:method&gt;</td>
<td>timeout</td>
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<td>&#x65B9;&#x6CD5;&#x8C03;&#x7528;&#x8D85;&#x65F6;&#x65F6;&#x95F4;(&#x6BEB;&#x79D2;)</td>
<td>1.0.8&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
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<td>&lt;dubbo:method&gt;</td>
<td>retries</td>
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<td>&lt;metodName&gt;.retries</td>
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</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>loadbalance</td>
<td></td>
<td>&lt;metodName&gt;.loadbalance</td>
<td>string</td>
<td>&#x53EF;&#x9009;</td>
<td>&#x7F3A;&#x7701;&#x4E3A;&#x7684;loadbalance</td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x8D1F;&#x8F7D;&#x5747;&#x8861;&#x7B56;&#x7565;&#xFF0C;&#x53EF;&#x9009;&#x503C;&#xFF1A;random,roundrobin,leastactive&#xFF0C;&#x5206;&#x522B;&#x8868;&#x793A;&#xFF1A;&#x968F;&#x673A;&#xFF0C;&#x8F6E;&#x5FAA;&#xFF0C;&#x6700;&#x5C11;&#x6D3B;&#x8DC3;&#x8C03;&#x7528;</td>
<td>2.0.0&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>async</td>
<td></td>
<td>&lt;metodName&gt;.async</td>
<td>boolean</td>
<td>&#x53EF;&#x9009;</td>
<td>&#x7F3A;&#x7701;&#x4E3A;</td>
<td>&lt;dubbo:reference&gt;&#x7684;async</td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x662F;&#x5426;&#x5F02;&#x6B65;&#x6267;&#x884C;&#xFF0C;&#x4E0D;&#x53EF;&#x9760;&#x5F02;&#x6B65;&#xFF0C;&#x53EA;&#x662F;&#x5FFD;&#x7565;&#x8FD4;&#x56DE;&#x503C;&#xFF0C;&#x4E0D;&#x963B;&#x585E;&#x6267;&#x884C;&#x7EBF;&#x7A0B;</td>
<td>1.0.9&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>sent</td>
<td></td>
<td>&lt;methodName&gt;.sent</td>
<td>boolean</td>
<td>&#x53EF;&#x9009;</td>
<td>true</td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x5F02;&#x6B65;&#x8C03;&#x7528;&#x65F6;&#xFF0C;&#x6807;&#x8BB0;sent=true&#x65F6;&#xFF0C;&#x8868;&#x793A;&#x7F51;&#x7EDC;&#x5DF2;&#x53D1;&#x51FA;&#x6570;&#x636E;</td>
<td>2.0.6&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>actives</td>
<td></td>
<td>&lt;metodName&gt;.actives</td>
<td>int</td>
<td>&#x53EF;&#x9009;</td>
<td>0</td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x6BCF;&#x670D;&#x52A1;&#x6D88;&#x8D39;&#x8005;&#x6700;&#x5927;&#x5E76;&#x53D1;&#x8C03;&#x7528;&#x9650;&#x5236;</td>
<td>2.0.5&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>executes</td>
<td></td>
<td>&lt;metodName&gt;.executes</td>
<td>int</td>
<td>&#x53EF;&#x9009;</td>
<td>0</td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x6BCF;&#x670D;&#x52A1;&#x6BCF;&#x65B9;&#x6CD5;&#x6700;&#x5927;&#x4F7F;&#x7528;&#x7EBF;&#x7A0B;&#x6570;&#x9650;&#x5236;- -&#xFF0C;&#x6B64;&#x5C5E;&#x6027;&#x53EA;&#x5728;</td>
<td>&lt;dubbo:method&gt;&#x4F5C;&#x4E3A;</td>
<td>&lt;dubbo:service&gt;&#x5B50;&#x6807;&#x7B7E;&#x65F6;&#x6709;&#x6548;</td>
<td>2.0.5&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>deprecated</td>
<td></td>
<td>&lt;methodName&gt;.deprecated</td>
<td>boolean</td>
<td>&#x53EF;&#x9009;</td>
<td>false</td>
<td>&#x670D;&#x52A1;&#x6CBB;&#x7406;</td>
<td>&#x670D;&#x52A1;&#x65B9;&#x6CD5;&#x662F;&#x5426;&#x8FC7;&#x65F6;&#xFF0C;&#x6B64;&#x5C5E;&#x6027;&#x53EA;&#x5728;</td>
<td>&lt;dubbo:method&gt;&#x4F5C;&#x4E3A;</td>
<td>&lt;dubbo:service&gt;&#x5B50;&#x6807;&#x7B7E;&#x65F6;&#x6709;&#x6548;</td>
<td>2.0.5&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>sticky</td>
<td></td>
<td>&lt;methodName&gt;.sticky</td>
<td>boolean</td>
<td>&#x53EF;&#x9009;</td>
<td>false</td>
<td>&#x670D;&#x52A1;&#x6CBB;&#x7406;</td>
<td>&#x8BBE;&#x7F6E;true &#x8BE5;&#x63A5;&#x53E3;&#x4E0A;&#x7684;&#x6240;&#x6709;&#x65B9;&#x6CD5;&#x4F7F;&#x7528;&#x540C;&#x4E00;&#x4E2A;provider.&#x5982;&#x679C;&#x9700;&#x8981;&#x66F4;&#x590D;&#x6742;&#x7684;&#x89C4;&#x5219;&#xFF0C;&#x8BF7;&#x4F7F;&#x7528;&#x7528;&#x8DEF;&#x7531;</td>
<td>2.0.6&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>return</td>
<td></td>
<td>&lt;methodName&gt;.return</td>
<td>boolean</td>
<td>&#x53EF;&#x9009;</td>
<td>true</td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x65B9;&#x6CD5;&#x8C03;&#x7528;&#x662F;&#x5426;&#x9700;&#x8981;&#x8FD4;&#x56DE;&#x503C;,async&#x8BBE;&#x7F6E;&#x4E3A;true&#x65F6;&#x624D;&#x751F;&#x6548;&#xFF0C;&#x5982;&#x679C;&#x8BBE;&#x7F6E;&#x4E3A;true&#xFF0C;&#x5219;&#x8FD4;&#x56DE;future&#xFF0C;&#x6216;&#x56DE;&#x8C03;onreturn&#x7B49;&#x65B9;&#x6CD5;&#xFF0C;&#x5982;&#x679C;&#x8BBE;&#x7F6E;&#x4E3A;false&#xFF0C;&#x5219;&#x8BF7;&#x6C42;&#x53D1;&#x9001;&#x6210;&#x529F;&#x540E;&#x76F4;&#x63A5;&#x8FD4;&#x56DE;Null</td>
<td>2.0.6&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>oninvoke</td>
<td>attribute&#x5C5E;&#x6027;&#xFF0C;&#x4E0D;&#x5728;URL&#x4E2D;&#x4F53;&#x73B0;</td>
<td>String</td>
<td>&#x53EF;&#x9009;</td>
<td></td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x65B9;&#x6CD5;&#x6267;&#x884C;&#x524D;&#x62E6;&#x622A;</td>
<td>2.0.6&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>onreturn</td>
<td>attribute&#x5C5E;&#x6027;&#xFF0C;&#x4E0D;&#x5728;URL&#x4E2D;&#x4F53;&#x73B0;</td>
<td>String</td>
<td>&#x53EF;&#x9009;</td>
<td></td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x65B9;&#x6CD5;&#x6267;&#x884C;&#x8FD4;&#x56DE;&#x540E;&#x62E6;&#x622A;</td>
<td>2.0.6&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>onthrow</td>
<td>attribute&#x5C5E;&#x6027;&#xFF0C;&#x4E0D;&#x5728;URL&#x4E2D;&#x4F53;&#x73B0;</td>
<td>String</td>
<td>&#x53EF;&#x9009;</td>
<td></td>
<td>&#x6027;&#x80FD;&#x8C03;&#x4F18;</td>
<td>&#x65B9;&#x6CD5;&#x6267;&#x884C;&#x6709;&#x5F02;&#x5E38;&#x62E6;&#x622A;</td>
<td>2.0.6&#x4EE5;&#x4E0A;&#x7248;&#x672C;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>cache</td>
<td></td>
<td>&lt;methodName&gt;.cache</td>
<td>string/boolean</td>
<td>&#x53EF;&#x9009;</td>
<td></td>
<td>&#x670D;&#x52A1;&#x6CBB;&#x7406;</td>
<td>&#x4EE5;&#x8C03;&#x7528;&#x53C2;&#x6570;&#x4E3A;key&#xFF0C;&#x7F13;&#x5B58;&#x8FD4;&#x56DE;&#x7ED3;&#x679C;&#xFF0C;&#x53EF;&#x9009;&#xFF1A;lru, threadlocal, jcache&#x7B49;</td>
<td>Dubbo2.1.0&#x53CA;&#x5176;&#x4EE5;&#x4E0A;&#x7248;&#x672C;&#x652F;&#x6301;</td>
</tr>
<tr>
<td>&lt;dubbo:method&gt;</td>
<td>validation</td>
<td></td>
<td>&lt;methodName&gt;.validation</td>
<td>boolean</td>
<td>&#x53EF;&#x9009;</td>
<td></td>
<td>&#x670D;&#x52A1;&#x6CBB;&#x7406;</td>
<td>&#x662F;&#x5426;&#x542F;&#x7528;JSR303&#x6807;&#x51C6;&#x6CE8;&#x89E3;&#x9A8C;&#x8BC1;&#xFF0C;&#x5982;&#x679C;&#x542F;&#x7528;&#xFF0C;&#x5C06;&#x5BF9;&#x65B9;&#x6CD5;&#x53C2;&#x6570;&#x4E0A;&#x7684;&#x6CE8;&#x89E3;&#x8FDB;&#x884C;&#x6821;&#x9A8C;</td>
<td>Dubbo2.1.0&#x53CA;&#x5176;&#x4EE5;&#x4E0A;&#x7248;&#x672C;&#x652F;&#x6301;</td>
</tr>
</tbody>
</table>
<p>&#x6BD4;&#x5982;: </p>
<pre><code class="lang-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:reference</span> <span class="hljs-attr">interface</span>=<span class="hljs-string">&quot;com.xxx.XxxService&quot;</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">dubbo:method</span> <span class="hljs-attr">name</span>=<span class="hljs-string">&quot;findXxx&quot;</span> <span class="hljs-attr">timeout</span>=<span class="hljs-string">&quot;3000&quot;</span> <span class="hljs-attr">retries</span>=<span class="hljs-string">&quot;2&quot;</span> /&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">dubbo:reference</span>&gt;</span>
</code></pre>
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