关于SseEmitter(SSE)在本地可以响应，部署到服务器后无法响应的问题

@GetMapping(value = "/v3/detail", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
@ResponseBody
public SseEmitter v3Detail(String id) {SseEmitter emitter = new SseEmitter((long) (60 * 1000 * 10));V2Params params = v3ParamMap.get(id);if (params == null) {getSend(emitter, "result", "id is not found: " + id);return emitter;}// CODE...return emitter;
}

本地刷刷就响应了，服务器上无法响应：

经过排查发现是 nginx 的问题
因为是域名通过nginx代理转发到java应用的

解决：

http {upstream java_app {server 127.0.0.1:8056;}server {listen 80;server_name example.com;location / {proxy_pass http://java_app;proxy_set_header Host $host;proxy_set_header X-Real-IP $remote_addr;proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;# SSE supportproxy_buffering off;proxy_cache off;proxy_read_timeout 86400s;proxy_send_timeout 86400s;}}
}