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Update 微服务.md

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调整配图：用图标表示服务、数据库、请求等元素，并在图中标出具体的数据。
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CyC2018
2026-10-26 04:42:09 +08:00
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commit 149968c406
2 changed files with 65 additions and 39 deletions
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notes/pics/microservice-overview.png
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tools/diagram/src/microservice-overview.svg
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<text x="370" y="28" class="title">一次下单请求经过的组件</text>
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<text x="65" y="196" class="b c">App</text>
<text x="65" y="211" class="sub c">带上令牌</text>
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<text x="235" y="182" class="c b">网关 :8080</text>
<text x="235" y="202" class="c sub">校验令牌，加上 X-User-Id</text>
<text x="235" y="220" class="c sub">/api/orders/** → 订单服务</text>
<rect x="362" y="160" width="150" height="80" rx="6" class="shadow"/>
<rect x="360" y="158" width="150" height="80" rx="6" fill="#B1DDF0"/>
<text x="435" y="182" class="c b">订单服务 :8090</text>
<text x="435" y="202" class="c sub">OpenFeign 调用库存服务</text>
<text x="435" y="220" class="c sub">读取 order.max-items</text>
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<rect x="580" y="130" width="140" height="50" rx="6" fill="#B0E3E6"/>
<text x="650" y="159.5" class="b c">库存服务 :8081</text>
<rect x="582" y="212" width="140" height="50" rx="6" class="shadow"/>
<rect x="580" y="210" width="140" height="50" rx="6" fill="#B0E3E6"/>
<text x="650" y="239.5" class="b c">库存服务 :8082</text>
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<text x="545" y="200" class="c sub">轮询</text>
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<rect x="260" y="50" width="360" height="60" rx="6" fill="#E6E6E6"/>
<text x="440" y="72" class="c b">Nacos :8848</text>
<text x="440" y="92" class="c sub">注册中心：服务名 → 实例列表；配置中心：order-service.yaml</text>
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<text x="180" y="128" class="sub">查询实例</text>
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<text x="441" y="138" class="sub">实例列表、配置推送</text>
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<text x="656" y="108" class="sub">注册</text>
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<text x="160" y="292" class="sub">traceId 6ade5947…74b 随请求头 traceparent 传递，各服务的日志中都带上它</text>
<text x="160" y="324" class="sub">订单服务调用库存服务时加上超时和熔断（Sentinel），跨服务的事务用 Seata 或消息保证一致</text>
<text x="20" y="380" class="sub">本机实际运行：Nacos 2.5.4，Spring Boot 3.3，Spring Cloud 2023.0，Spring Cloud Alibaba 2023.0.3.4</text>
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<text x="282" y="104" class="sub">inventory-service → :8081、:8082</text>
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<rect x="40" y="184" width="20" height="30" rx="1.5" fill="#FFFFFF" stroke="#A99FD8" stroke-width="0.8"/>
<circle cx="50" cy="219" r="2" fill="#A99FD8"/>
<text x="50" y="244" class="c b">App</text>
<text x="50" y="259" class="c sub">带上令牌</text>
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<text x="190" y="244" class="c b">网关 :8080</text>
<text x="190" y="259" class="c sub">校验令牌、按路径转发</text>
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<circle cx="379" cy="216.5" r="2" fill="#7FB4D0"/>
<line x1="386" y1="216.5" x2="411" y2="216.5" stroke="#7FB4D0" stroke-width="1"/>
<text x="395" y="244" class="c b">订单服务 :8090</text>
<text x="395" y="259" class="c sub">OpenFeign 调用库存服务</text>
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<text x="160" y="132" class="sub">查询实例</text>
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<text x="402" y="160" class="sub">实例列表、配置推送</text>
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<text x="640" y="118" class="sub">注册</text>
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<text x="160" y="338" class="sub">traceId 6ade5947…74b 随请求头 traceparent 传递，各服务的日志中都带上它</text>
<text x="160" y="368" class="sub">订单服务调用库存服务时加上超时和熔断（Sentinel），跨服务的事务用 Seata 或消息保证一致</text>
<text x="20" y="392" class="sub">本机实际运行：Nacos 2.5.4，Spring Boot 3.3，Spring Cloud 2023.0，Spring Cloud Alibaba 2023.0.3.4</text>
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