JavaEE Websocket：关闭浏览器选项卡会关闭所有会话而不管浏览器 [英] JavaEE Websocket: closing browser tab closes all sessions irrespective of browser

问题描述

我有一个websocket端点

I have a websocket endpoint as

@ServerEndpoint("/tweets")
public class TweetStreamServer {
    private static final Logger LOGGER = LoggerFactory.getLogger(TweetStreamServer.class);

    @OnMessage
    public void tweets(final String message, final Session session) throws IOException, InterruptedException {
        System.out.println("session id:" + session.getId() + ", search term: " + message);
        final Client twitterClient = TwitterHoseBird.getInstance(message);
        while (!session.getOpenSessions().isEmpty()) {
            for (final Session s : session.getOpenSessions()) {
                if (twitterClient.isDone()) {
                    System.out.println("Twitter Client Done, waiting ...");
                }
                s.getBasicRemote().sendText(TwitterHoseBird.getMsgQueue().take());
            }
        }
    }
}

I在 WildFly 8.1.0 Final 上部署它。然后我在 Chrome ， Safari 上打开多个标签，然后运行以下内容

I deploy this on WildFly 8.1.0 Final. Then I open multiple tabs on Chrome, Safari and run the following

var connection = new WebSocket('ws://127.0.0.1:8080/tweetstream-1.0-SNAPSHOT/tweets');
connection.onopen = function () {
  connection.send('germany');
};
connection.onerror = function (error) {
  console.log('WebSocket Error ' + error);
};
connection.onmessage = function (e) {
  console.log('Server: ' + e.data);
};
connection.onclose = function (e) {
  console.log('closing session');
};

然后所有标签开始从服务器接收数据。

Then all the tabs start receiving data from server.

• 然后当我在其中一个标签上执行 connection.close（）; 时，只有那个连接中断，而所有其他标签都是仍然接收数据


• 但如果我关闭其中一个标签（在任何浏览器中），则所有其他标签中打开的所有会话都会以关闭会话会话消息

• Then when I do connection.close(); on one of the tabs, only that connection breaks while all the other tabs are still receiving the data
• But if I close one of the tabs (in any browser), all the sessions that were open in all the other tabs close session with closing session message

问题

- 是吗不是一个有效的用例，如果用户在一个浏览器中关闭选项卡，所有其他选项卡仍然应该接收数据？

- 您是否看到我正在做的任何错误/问题？

- 我该如何解决这个问题？

Question
- Is it not a valid use case that if user closes a tab in one browser, all the other tabs should still receive the data?
- Do you see any bug/issue with what I am doing?
- How can I fix this issue?

谢谢

推荐答案

而不是使用

s.getBasicRemote().sendText(TwitterHoseBird.getMsgQueue().take());  

将其更改为

s.getAsyncRemote().sendText(TwitterHoseBird.getMsgQueue().take());  

其他一切都可以正常锻炼

and everything else would just workout fine

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