Websocket未连接-为什么？

Question

我为此http://192.168.0.6:8989/websocket URl在Android应用程序中尝试连接Web套接字，但没有得到任何响应，例如错误或成功。

我正在使用stomp网络套接字库，但未成功。

'''// connectWebSocket（）;

    // Create a WebSocket factory and set 5000 milliseconds as a timeout
    // value for socket connection.
    WebSocketFactory factory = new WebSocketFactory().setConnectionTimeout(5000);

    // Create a WebSocket. The timeout value set above is used.
    try {
        ws =factory.createSocket("http://192.168.0.6:8989/websocket");

        ws.addListener(new WebSocketAdapter() {
            @Override
            public void onTextMessage(WebSocket websocket, String message) throws Exception {
                Log.d("TAG", "onTextMessage: " + message);
            }
        });

        ws.connectAsynchronously();
    } catch (IOException e) {
        e.printStackTrace();
    }'''

编译'com.neovisionaries：nv-websocket-client：2.4'