7 lines
5.9 KiB
JSON
7 lines
5.9 KiB
JSON
{"role":"user","message":{"content":[{"type":"text","text":"<user_query>\nSSE连接连上了过一会就断了\n</user_query>"}]}}
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{"role":"assistant","message":{"content":[{"type":"text","text":"正在搜索项目中与 SSE 相关的实现，以便结合代码给出更具体的分析。\n\n[REDACTED]"},{"type":"tool_use","name":"SemanticSearch","input":{"query":"Where is Server-Sent Events SSE implemented?","target_directories":["/Users/kazusa/IdeaProjects/baoshi/wms"],"num_results":20}},{"type":"tool_use","name":"Grep","input":{"path":"/Users/kazusa/IdeaProjects/baoshi/wms","pattern":"text/event-stream|SseEmitter|EventSource"}}]}}
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{"role":"assistant","message":{"content":[{"type":"text","text":"[REDACTED]"},{"type":"tool_use","name":"Read","input":{"path":"/Users/kazusa/IdeaProjects/baoshi/wms/baoshi-wms/src/main/java/com/baoshi/wms/service/ServiceSentEventService.java"}},{"type":"tool_use","name":"Read","input":{"path":"/Users/kazusa/IdeaProjects/baoshi/wms/baoshi-wms/src/main/java/com/baoshi/wms/schedule/ServiceSendEventSchedule.java"}},{"type":"tool_use","name":"Grep","input":{"path":"/Users/kazusa/IdeaProjects/baoshi/wms/baoshi-gateway-service","pattern":"proxy_read_timeout|read-timeout|SSE|event-stream"}}]}}
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{"role":"assistant","message":{"content":[{"type":"text","text":"[REDACTED]"},{"type":"tool_use","name":"Grep","input":{"path":"/Users/kazusa/IdeaProjects/baoshi/wms/baoshi-gateway-service","pattern":"timeout|readTimeout|idle","glob":"*.{yml,yaml,properties}"}}]}}
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{"role":"assistant","message":{"content":[{"type":"text","text":"[REDACTED]"},{"type":"tool_use","name":"Glob","input":{"target_directory":"/Users/kazusa/IdeaProjects/baoshi/wms/baoshi-gateway-service","glob_pattern":"**/*.{yml,yaml}"}}]}}
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{"role":"assistant","message":{"content":[{"type":"text","text":"[REDACTED]"},{"type":"tool_use","name":"Read","input":{"path":"/Users/kazusa/IdeaProjects/baoshi/wms/baoshi-gateway-service/baoshi-gateway-server/src/main/resources/bootstrap.yml"}}]}}
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{"role":"assistant","message":{"content":[{"type":"text","text":"【分析问题】\n\nSSE「刚连上一会儿就断」在你们仓库里主要有两类原因：**基础设施/超时** 和 **业务代码里的超时与重连逻辑**。下面按优先级说明，并对应到你们项目里的实现。\n\n---\n\n### 1. 网关 / 反向代理空闲超时（最常见）\n\n长连接若**中间经过 Nginx、SLB/ALB、Spring Cloud Gateway** 等，常见默认是 **60 秒无上游可读数据就关连接**。 \n你们网关配置在 **Nacos**（`bootstrap.yml` 里引了 `baoshi-gateway-server.yml`），本地仓库里看不到具体 `httpclient`/路由超时，需要到 Nacos 或前置 Nginx 里看是否对 SSE 路径单独拉长了 **read / idle / proxy_read_timeout**。\n\n若心跳字节到不了浏览器（被缓冲、被中间层截断），中间层仍会按空闲断开。\n\n---\n\n### 2. 应用层 `SseEmitter` 超时（若你用的是 ERP 的 SSE）\n\n`baoshi-erp` 里明确写了 **120 秒** 超时：\n\n```23:34:baoshi-erp/src/main/java/com/baoshi/erp/service/sse/ServiceSentEventService.java\n private static final long TIMEOUT = 120000L;\n // ...\n public SseEmitter register(String userId) {\n SseEmitter emitter = new SseEmitter(TIMEOUT);\n```\n\n若现象是「**大约 2 分钟就断**」，很大概率就是这里到期触发 `onTimeout`。\n\nWMS 侧注册是 **3600000L（1 小时）**，单靠 Spring 默认超时一般不会「过一小会儿」就断：\n\n```26:31:baoshi-wms/src/main/java/com/baoshi/wms/service/ServiceSentEventService.java\n SseEmitter emitter = new SseEmitter(3600000L);\n Optional.ofNullable(map.put(deviceCode, emitter)).ifPresent(SseEmitter::complete);\n```\n\n---\n\n### 3. 同一用户同一设备再次注册会踢掉旧连接\n\nWMS 里同一 `userId + deviceCode` 再次 `registerClient` 会先 **`complete` 旧 emitter**：\n\n```30:31:baoshi-wms/src/main/java/com/baoshi/wms/service/ServiceSentEventService.java\n SseEmitter emitter = new SseEmitter(3600000L);\n Optional.ofNullable(map.put(deviceCode, emitter)).ifPresent(SseEmitter::complete);\n```\n\n若前端/多端重复打开、或 React Strict Mode 双挂载、或自动重连与手动连接叠加，会表现为「连上一会儿突然断了」（其实是被新连接替换）。\n\n---\n\n### 4. 心跳与调度\n\nWMS 每 **15 秒** 发一次心跳，理论上能扛住多数 60s 空闲策略：\n\n```18:20:baoshi-wms/src/main/java/com/baoshi/wms/schedule/ServiceSendEventSchedule.java\n @Scheduled(fixedRate = 15000)\n public void sendHeartbeat() {\n serviceSentEventService.sendHeartbeat();\n```\n\n但要注意：**若 `@EnableScheduling` 未在最终启动的 Spring Boot 应用上生效**、或该 Bean 未加载、或实例多机部署而客户端打到了别的实例，心跳行为会与预期不一致。发推送失败时也会 `complete` 并移除连接（见 `sendHeartbeat` 里 catch 分支）。\n\n---\n\n### 5. 客户端与环境\n\n- 浏览器标签页休眠、笔记本合盖、移动端后台，可能冻结 `EventSource`，恢复后表现为已断线。 \n- 公司代理 / VPN 对长连接不友好。 \n- 需确认前端是否只依赖默认 `EventSource`、是否处理 `onerror` 做指数退避重连。\n\n---\n\n### 建议你先对齐的三件事\n\n1. **断线大致时间**：是否固定约 **60s**、**120s**，还是随机？（分别指向代理、ERP `SseEmitter` 超时等。） \n2. **完整调用链**：浏览器是否直连 WMS，还是经 **Gateway + Nginx**？ \n3. **是否重复注册**：同一 `userId/deviceCode` 是否会在短时间内建立第二次连接？\n\n如果你补充：**是哪个接口（WMS 的 `hik/registerClient` / `asrs/registerClient` 还是 ERP 的 `connect`）、断线间隔、是否经网关**，可以把原因缩到一两项并给出对应改配置还是改代码的结论。（当前为 Ask 模式，我无法直接改配置或代码；需要我改仓库可切到 Agent 模式。）\n\n[REDACTED]"}]}} |