Spring Boot 设置 Controller 处理超时时间

Spring Boot Tomcat About 2,766 words

同步接口

对于同步接口，Spring Boot并不支持服务端的超时时间。（即：客户端不中断请求的情况下将无限制等待服务端返回信息）

而server.tomcat.connection-timeout的连接超时是指三次握手的建立连接时的超时，并发针对接口中业务处理超长时间的超时限制。

异步接口

使用Callable异步返回结果。

@GetMapping("/timeout")
public Callable<String> timeout() {
    System.out.println(LocalDateTime.now() + ": 超长处理, threadId: " + Thread.currentThread().getId());
    return () -> {
        try {
            Thread.sleep(60000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(LocalDateTime.now() + ": 继续执行, threadId: " + Thread.currentThread().getId());
        return "timeout";
    };
}

可以发现30秒后，中断了sleep。

2023-07-14T10:18:36.543868: 超长处理, threadId: 28
java.lang.InterruptedException: sleep interrupted
    at java.base/java.lang.Thread.sleep(Native Method)
    at TestController.lambda$timeout$0(AuthController.java:39)
    at org.springframework.web.context.request.async.WebAsyncManager.lambda$startCallableProcessing$4(WebAsyncManager.java:337)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:829)
2023-07-14T10:19:07.341425: 继续执行, threadId: 51
2023-07-14 10:19:07.357  WARN 61586 --- [nio-8081-exec-2] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.web.context.request.async.AsyncRequestTimeoutException]

返回的HTTP状态码为503。

❯ curl -vv http://localhost:8081/timeout
*   Trying 127.0.0.1:8081...
* Connected to localhost (127.0.0.1) port 8081 (#0)
> GET /timeout HTTP/1.1
> Host: localhost:8081
> User-Agent: curl/7.88.1
> Accept: */*
>
< HTTP/1.1 503
< Cache-Control: private
< Content-Type: text/html;charset=utf-8
< Content-Language: en
< Content-Length: 451
< Date: Fri, 14 Jul 2023 02:23:23 GMT
< Connection: close
<
* Closing connection 0
<!doctype html><html lang="en"><head><title>HTTP Status 503 – Service Unavailable</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;background-color:#525D76;} h1 {font-size:22px;} h2 {font-size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>HTTP Status 503 – Service Unavailable</h1></body></html>%

可以设置异步接口的超时时间，默认是30秒。

spring:
  mvc:
    async:
      request-timeout: 5s

代理

对于Spring Boot上游有一层代理的情况下（如Nginx代理），可以设置Nginx的代理超时时间。

Views: 2,668 · Posted: 2023-07-17

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