Java Rest API:如何检查客户端和端点之间的连接? [英] Java Rest API: how to check connection between client and endpoint?

问题描述

我如何检查发送休息请求的用户是否使用Ctrl-C中止了该请求? 我需要在服务器端进行检查，因为这需要几分钟.如果用户中止了它，那么我应该停止它.

How I can check if user who sent rest request aborted it using Ctrl-C? I need to check it on server side because it takes several minutes. If user aborted it then I should stop it.

我试图写ServletOutputStream，但是它不起作用(我从不捕获异常):

I tried to write to ServletOutputStream but it doesn't work (I never catch exception):

@Path("test")
public void test(@Context MessageContext mc) {
  try {
     ServletOutputStream out = mc.getHttpServletResponse().getOutputStream();
     out.println("test");
     out.flush();
  } catch (IOException e) {
     System.out.println("Connection is broken");
     return;
  }
}

找到的解决方案:

    private boolean isConnected() {
    try {
        servletResponse.getOutputStream().println("data");
        servletResponse.flushBuffer();
        return true;
    } catch (IOException e) {
        return false;
    }
}

推荐答案

private boolean isConnected() {
    try {
        servletResponse.getOutputStream().println("data");
        servletResponse.flushBuffer();
        return true;
    } catch (IOException e) {
        return false;
    }
}

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