错误 java.net.SocketTimeoutException

Question

从 android 套接字编程连接到 node.js 时出错。我正在使用 socket.io 连接到服务器，但一次又一次地发生超时，任何帮助将不胜感激

代码

   SocketIO socket = new SocketIO("http://10.10.10.125:1337");		
    	socket.connect
    			(
    					new IOCallback(){
    						@Override
    						public void onError(SocketIOException socketIOException) {
    							System.out.println("an Error occured");
    							socketIOException.printStackTrace();
    						}
    						@Override
    						public void onDisconnect() {
    							System.out.println("Connection terminated.");
    						}
    						@Override
    						public void onConnect() {
    							System.out.println("Connection established");
    							//socket.send("Hello Server!");
    							//System.out.println("send msg to server");
    						}
    						@Override
    						public void onMessage(String arg0,
    								IOAcknowledge arg1) {
    							// TODO Auto-generated method stub
    							System.out.println("Server said: " + arg0);
    						}
    						@Override
    						public void onMessage(JSONObject arg0,
    								IOAcknowledge arg1) {
    							// TODO Auto-generated method stub
    							try {
    								System.out.println("Server said:" + arg0.toString(2));
    							} catch (JSONException e) {
    								e.printStackTrace();
    							}
    						}
    						@Override
    						public void on(String arg0, IOAcknowledge arg1,
    								Object... arg2) {
    							// TODO Auto-generated method stub
    							System.out.println("on....");
    						}	

    					}
    					);
    		

    		} catch (MalformedURLException e1) {
    			e1.printStackTrace();
    		}

错误

12-04 16:30:30.510: W/System.err(8986): io.socket.SocketIOException: Error while handshaking
12-04 16:30:30.510: W/System.err(8986): 	at io.socket.IOConnection.handshake(IOConnection.java:322)
12-04 16:30:30.510: W/System.err(8986): 	at io.socket.IOConnection.access$600(IOConnection.java:39)
12-04 16:30:30.510: W/System.err(8986): 	at io.socket.IOConnection$ConnectThread.run(IOConnection.java:199)
12-04 16:30:30.510: W/System.err(8986): Caused by: java.net.SocketTimeoutException
12-04 16:30:30.510: W/System.err(8986): 	at java.net.PlainSocketImpl.read(PlainSocketImpl.java:491)
12-04 16:30:30.510: W/System.err(8986): 	at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46)
12-04 16:30:30.510: W/System.err(8986): 	at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240)
12-04 16:30:30.510: W/System.err(8986): 	at java.io.InputStream.read(InputStream.java:163)
12-04 16:30:30.510: W/System.err(8986): 	at java.io.BufferedInputStream.fillbuf(BufferedInputStream.java:142)
12-04 16:30:30.510: W/System.err(8986): 	at java.io.BufferedInputStream.read(BufferedInputStream.java:227)
12-04 16:30:30.510: W/System.err(8986): 	at libcore.io.Streams.readAsciiLine(Streams.java:201)
12-04 16:30:30.510: W/System.err(8986): 	at libcore.net.http.HttpEngine.readResponseHeaders(HttpEngine.java:544)
12-04 16:30:30.510: W/System.err(8986): 	at libcore.net.http.HttpEngine.readResponse(HttpEngine.java:784)
12-04 16:30:30.510: W/System.err(8986): 	at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:274)
12-04 16:30:30.510: W/System.err(8986): 	at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168)
12-04 16:30:30.510: W/System.err(8986): 	at io.socket.IOConnection.handshake(IOConnection.java:313)
12-04 16:30:30.510: W/System.err(8986): 	... 2 more

Answer 1

问题是您的客户端库支持 socket.io 0.9.x 并且您的服务器使用的是 socket.io v1 并且从 0.9 到 1 ，在 socket.io 库中更改了握手协议。尝试将服务器的 socket.io 降级到 0.9，它会毫无问题地工作，或者你可以使用支持 socket.io v1.0.x 的socket.io-client