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| Restful风格 - 使用 RestOperations |
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| RPC风格 |
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| 定制请求处理流程 |
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| 自定义调用链打点 |
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| 概念阐述 |
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| 自定义调用链打点 |
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| 添加依赖 |
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| 启用自定义打点功能 {#配置追踪处理和数据收集} |
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| 定制打点 |
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| <a href="#_9" class="md-nav__link"> |
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| 定制上报的数据 |
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| 本地开发和测试 |
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| 文件上传下载 |
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| <a href="reactive.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| Reactive |
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| DNS自定义配置 |
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| 代理设置 |
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| <a href="report-framework-version.html" class="md-nav__link"> |
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| <a href="cross-app-invocation.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| 跨应用调用 |
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| <span class="md-ellipsis"> |
| 定制序列化和反序列化方法 |
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| <a href="context.html" class="md-nav__link"> |
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| 使用Context传递控制消息 |
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| 返回值序列化扩展 |
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| 跨域资源共享(CORS) |
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| <li class="md-nav__item"> |
| <a href="AlarmEvent.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| 获取熔断与实例隔离告警事件信息 |
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| <li class="md-nav__item"> |
| <a href="shutdown.html" class="md-nav__link"> |
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| 优雅停机 |
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| 异常处理 |
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| <a href="multienvironment.html" class="md-nav__link"> |
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| 微服务实例间多环境隔离 |
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| <a href="thread-model.html" class="md-nav__link"> |
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| 线程模型 |
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| <li class="md-nav__item"> |
| <a href="config-logs.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| 配置日志 |
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| <li class="md-nav__item md-nav__item--nested"> |
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| <span class="md-ellipsis"> |
| 多样化的通信协议功能 |
| </span> |
| |
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| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_11_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_11"> |
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| <ul class="md-nav__list" data-md-scrollfix> |
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| <a href="../transports/introduction.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| 多协议介绍 |
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| <li class="md-nav__item"> |
| <a href="../transports/rest-over-vertx.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| REST over HTTP(Vert.x) |
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| <li class="md-nav__item"> |
| <a href="../transports/http2.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| REST over HTTP2(Vert.x) |
| </span> |
| |
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| <li class="md-nav__item"> |
| <a href="../transports/rest-over-servlet-embedded.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| REST over Servlet(Spring Boot Embedded) |
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| <li class="md-nav__item"> |
| <a href="../transports/rest-over-servlet.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| REST over Servlet(WAR) |
| </span> |
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| <li class="md-nav__item"> |
| <a href="../transports/highway-rpc.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| Highway |
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| </a> |
| </li> |
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| </ul> |
| </nav> |
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| <li class="md-nav__item md-nav__item--nested"> |
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| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_12" > |
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| <label class="md-nav__link" for="__nav_12" id="__nav_12_label" tabindex="0"> |
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| <span class="md-ellipsis"> |
| 多样化的服务注册与发现功能 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_12_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_12"> |
| <span class="md-nav__icon md-icon"></span> |
| 多样化的服务注册与发现功能 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
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| <li class="md-nav__item"> |
| <a href="../registry/introduction.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| 注册发现介绍 |
| </span> |
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| <li class="md-nav__item"> |
| <a href="../registry/service-center.html" class="md-nav__link"> |
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| <span class="md-ellipsis"> |
| 使用Service Center |
| </span> |
| |
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| </a> |
| </li> |
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| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../registry/nacos.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用Nacos |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../registry/zookeeper.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用ZooKeeper |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../registry/local-registry.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 本地注册发现 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../registry/distributed.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 去中心化注册发现 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
| |
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| |
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| |
| |
| |
| |
| <li class="md-nav__item md-nav__item--nested"> |
| |
| |
| |
| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_13" > |
| |
| |
| <label class="md-nav__link" for="__nav_13" id="__nav_13_label" tabindex="0"> |
| |
| |
| <span class="md-ellipsis"> |
| 多样化的配置管理功能 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_13_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_13"> |
| <span class="md-nav__icon md-icon"></span> |
| 多样化的配置管理功能 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../config/general-config.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 服务配置介绍 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
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| |
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| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../config/read-config.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 在程序中读取配置信息 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../config/kie.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用Kie |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../config/nacos.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用Nacos |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../config/zookeeper.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用Zookeeper |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../config/apollo.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用Apollo |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../config/cse1.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用CSE1.0配置中心 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
| |
| |
| |
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| |
| |
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| |
| <li class="md-nav__item md-nav__item--nested"> |
| |
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| |
| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_14" > |
| |
| |
| <label class="md-nav__link" for="__nav_14" id="__nav_14_label" tabindex="0"> |
| |
| |
| <span class="md-ellipsis"> |
| 服务治理功能参考 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_14_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_14"> |
| <span class="md-nav__icon md-icon"></span> |
| 服务治理功能参考 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/rule-governance.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 流量特征治理 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
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| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/governance-best-practise.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 流量特征治理最佳实践 |
| </span> |
| |
| |
| </a> |
| </li> |
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| |
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| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/loadbalance.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 负载均衡 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/ratelimit.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 限流 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/router.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 灰度发布 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/fault-injection.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 故障注入 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/fail-retry.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 快速失败和重试 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
| |
| |
| |
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| |
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| |
| |
| |
| |
| <li class="md-nav__item md-nav__item--nested"> |
| |
| |
| |
| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_15" > |
| |
| |
| <label class="md-nav__link" for="__nav_15" id="__nav_15_label" tabindex="0"> |
| |
| |
| <span class="md-ellipsis"> |
| 网关功能参考 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_15_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_15"> |
| <span class="md-nav__icon md-icon"></span> |
| 网关功能参考 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../edge/open-service.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 介绍 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../edge/by-servicecomb-sdk.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用 Edge Service 做网关 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../edge/zuul.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用 `zuul` 和 `spring cloud gateway` 做网关 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../edge/nginx.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| nginx 网关简单介绍 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item md-nav__item--nested"> |
| |
| |
| |
| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_16" > |
| |
| |
| <label class="md-nav__link" for="__nav_16" id="__nav_16_label" tabindex="0"> |
| |
| |
| <span class="md-ellipsis"> |
| 安全特性参考 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_16_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_16"> |
| <span class="md-nav__icon md-icon"></span> |
| 安全特性参考 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../references-handlers/publickey.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 公钥认证 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../security/tls.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用TLS通信 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| |
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| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../security/shi-yong-rsa-ren-zheng.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 使用RSA认证 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
| |
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| <li class="md-nav__item md-nav__item--nested"> |
| |
| |
| |
| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_17" > |
| |
| |
| <label class="md-nav__link" for="__nav_17" id="__nav_17_label" tabindex="0"> |
| |
| |
| <span class="md-ellipsis"> |
| 专题文章 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_17_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_17"> |
| <span class="md-nav__icon md-icon"></span> |
| 专题文章 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../featured-topics/features.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 特性介绍 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
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| |
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| |
| <li class="md-nav__item"> |
| <a href="../featured-topics/secrets.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 技术解密 |
| </span> |
| |
| |
| </a> |
| </li> |
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| |
| <li class="md-nav__item"> |
| <a href="../featured-topics/upgrading.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 升级指导 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../featured-topics/compatibility.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 兼容问题和兼容性策略 |
| </span> |
| |
| |
| </a> |
| </li> |
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| |
| <li class="md-nav__item"> |
| <a href="../featured-topics/performance.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 性能问题分析和调优 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
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| |
| <li class="md-nav__item md-nav__item--nested"> |
| |
| |
| |
| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_18" > |
| |
| |
| <label class="md-nav__link" for="__nav_18" id="__nav_18_label" tabindex="0"> |
| |
| |
| <span class="md-ellipsis"> |
| 常用配置项参考 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_18_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_18"> |
| <span class="md-nav__icon md-icon"></span> |
| 常用配置项参考 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../config-reference/rest-transport-client.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| REST Transport Client 配置项 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
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| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item md-nav__item--nested"> |
| |
| |
| |
| <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_19" > |
| |
| |
| <label class="md-nav__link" for="__nav_19" id="__nav_19_label" tabindex="0"> |
| |
| |
| <span class="md-ellipsis"> |
| 常见问题 |
| </span> |
| |
| |
| <span class="md-nav__icon md-icon"></span> |
| </label> |
| |
| <nav class="md-nav" data-md-level="1" aria-labelledby="__nav_19_label" aria-expanded="false"> |
| <label class="md-nav__title" for="__nav_19"> |
| <span class="md-nav__icon md-icon"></span> |
| 常见问题 |
| </label> |
| <ul class="md-nav__list" data-md-scrollfix> |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../question-and-answer/faq.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| FAQ |
| </span> |
| |
| |
| </a> |
| </li> |
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| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="md-nav__item"> |
| <a href="../question-and-answer/question_answer.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| Q & A |
| </span> |
| |
| |
| </a> |
| </li> |
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| |
| |
| |
| |
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| |
| |
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| |
| <li class="md-nav__item"> |
| <a href="../question-and-answer/interface-compatibility.html" class="md-nav__link"> |
| |
| |
| <span class="md-ellipsis"> |
| 微服务接口兼容常见问题 |
| </span> |
| |
| |
| </a> |
| </li> |
| |
| |
| |
| |
| </ul> |
| </nav> |
| |
| </li> |
| |
| |
| |
| </ul> |
| </nav> |
| </div> |
| </div> |
| </div> |
| |
| |
| |
| <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" > |
| <div class="md-sidebar__scrollwrap"> |
| <div class="md-sidebar__inner"> |
| |
| |
| <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> |
| |
| |
| |
| |
| <label class="md-nav__title" for="__toc"> |
| <span class="md-nav__icon md-icon"></span> |
| Table of contents |
| </label> |
| <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix> |
| |
| <li class="md-nav__item"> |
| <a href="#_1" class="md-nav__link"> |
| <span class="md-ellipsis"> |
| 概念阐述 |
| </span> |
| </a> |
| |
| </li> |
| |
| <li class="md-nav__item"> |
| <a href="#_2" class="md-nav__link"> |
| <span class="md-ellipsis"> |
| 前提条件 |
| </span> |
| </a> |
| |
| </li> |
| |
| <li class="md-nav__item"> |
| <a href="#_3" class="md-nav__link"> |
| <span class="md-ellipsis"> |
| 注意事项 |
| </span> |
| </a> |
| |
| </li> |
| |
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| <a href="#_4" class="md-nav__link"> |
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| 自定义调用链打点 |
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| 使用步骤: |
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| 添加依赖 |
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| 启用自定义打点功能 {#配置追踪处理和数据收集} |
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| 定制打点 |
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| 定制上报的数据 |
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| <h1>自定义调用链打点</h1> |
| |
| <h2 id="_1">概念阐述</h2> |
| <p>分布式调用链追踪提供了服务间调用的时序信息，但服务内部的链路调用信息对开发者同样重要，如果能将两者合二为一，就能提供更完整的调用链，更容易定位错误和潜在性能问题。</p> |
| <h2 id="_2">前提条件</h2> |
| <ul> |
| <li>使用自定义打点功能需要首先配置并启用Java Chassis微服务调用链。</li> |
| </ul> |
| <h2 id="_3">注意事项</h2> |
| <ul> |
| <li>使用<code>@Span</code>注释的自定义打点功能只支持和Java Chassis调用请求同一线程的方法调用。</li> |
| <li>添加<code>@Span</code>注释的方法必须是Spring管理的Bean，否则需要按这里<a href="https://stackoverflow.com/questions/41383941/load-time-weaving-for-non-spring-beans-in-a-spring-application">提到的方法</a>配置。</li> |
| </ul> |
| <h2 id="_4">自定义调用链打点</h2> |
| <p>该功能集成了Zipkin，提供<code>@Span</code>注释为需要追踪的方法自定义打点。Java Chassis将自动追踪所有添加<code>@Span</code>注释的方法，把每个方法的本地调用信息与服务间调用信息连接起来。</p> |
| <h2 id="_5">使用步骤:</h2> |
| <h3 id="_6">添加依赖</h3> |
| <p>基于 ServiceComb Java Chassis 的微服务只需要添加如下依赖到 pom.xml：</p> |
| <pre><code class="language-xml"> <dependency> |
| <groupId>org.apache.servicecomb</groupId> |
| <artifactId>tracing-zipkin</artifactId> |
| </dependency> |
| </code></pre> |
| <h3 id="_7">启用自定义打点功能 {#配置追踪处理和数据收集}</h3> |
| <p>在应用入口或Spring配置类上添加<code>@EnableZipkinTracing</code>注释：</p> |
| <pre><code class="language-java">@SpringBootApplication |
| @EnableZipkinTracing |
| public class ZipkinSpanTestApplication { |
| public static void main(String[] args) { |
| SpringApplication.run(ZipkinSpanTestApplication.class); |
| } |
| } |
| </code></pre> |
| <h3 id="_8">定制打点</h3> |
| <p>在需要定制打点的方法上添加<code>@Span</code>注释：</p> |
| <pre><code class="language-java">@Component |
| public class SlowRepoImpl implements SlowRepo { |
| private static final Logger logger = LoggerFactory.getLogger(SlowRepoImpl.class); |
| |
| private final Random random = new Random(); |
| |
| @Span |
| @Override |
| public String crawl() throws InterruptedException { |
| logger.info("in /crawl"); |
| Thread.sleep(random.nextInt(200)); |
| return "crawled"; |
| } |
| } |
| </code></pre> |
| <p>就这样，通过使用<code>@Span</code>注释，我们启动了基于 Zipkin 的自定义打点功能。</p> |
| <h2 id="_9">定制上报的数据</h2> |
| <p>通过自定义打点上报的调用链包含两条数据：</p> |
| <ul> |
| <li><strong>span name</strong> 默认为当前注释的方法全名。</li> |
| <li><strong>call.path</strong> 默认为当前注释的方法签名。</li> |
| </ul> |
| <p>例如，上述例子<code>SlowRepoImp</code>里上报的数据如下：</p> |
| <table> |
| <thead> |
| <tr> |
| <th style="text-align: left;">key</th> |
| <th style="text-align: left;">value</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td style="text-align: left;">span name</td> |
| <td style="text-align: left;">crawl</td> |
| </tr> |
| <tr> |
| <td style="text-align: left;">call.path</td> |
| <td style="text-align: left;">public abstract java.lang.String org.apache.servicecomb.tests.tracing.SlowRepo.crawl() throws java.lang.InterruptedException</td> |
| </tr> |
| </tbody> |
| </table> |
| <p>如果需要定制上报的数据内容，可以传入自定义的参数：</p> |
| <pre><code class="language-java"> public static class CustomSpanTask { |
| @Span(spanName = "transaction1", callPath = "startA") |
| public String invoke() { |
| return "invoke the method"; |
| } |
| } |
| </code></pre> |
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