使用NodeJS成功运行Socket.IO Android项目

我设法得到一个Socket.IO/Android项目进行编译，现在我试图让它与NodeJS服务器上的Socket.IO进行通信。 我把这个项目放在我的Drop Box上：

https://dl.dropboxusercontent.com/u/86164338/socketIOAndroid.zip

一切都编译和运行，但我看不到从NodeJS的输出。

这是基于： https ： //github.com/Gottox/socket.io-java-client

请注意，有关于编译Java代码并将jar文件复制到libs文件夹的说明：

git clone git：//github.com/Gottox/socket.io-java-client.git
cd socket.io-java-client
ant jar mv jar / socketio.jar
/path/到/你/库/项目

任何帮助是极大的赞赏。

Java代码：

package com.depictlabs.testsockets03; import java.net.MalformedURLException; import java.net.URI; import org.json.JSONObject; import io.socket.SocketIO; import io.socket.IOCallback; import io.socket.IOAcknowledge; import io.socket.SocketIOException; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import org.json.JSONException; import org.json.JSONObject; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); SocketIO socket; try{ System.out.println("Initializing Connection."); socket = new SocketIO("http://localhost:3000/"); socket.connect ( new IOCallback(){ @Override public void onMessage(JSONObject json, IOAcknowledge ack) { try { System.out.println("Server said:" + json.toString(2)); } catch (JSONException e) { e.printStackTrace(); } } @Override public void onMessage(String data, IOAcknowledge ack) { System.out.println("Server said: " + data); } @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"); } @Override public void on(String event, IOAcknowledge ack, Object... args) { System.out.println("Server triggered event '" + event + "'"); } } ); try { // This line is cached until the connection is established. System.out.println("Sending message to server."); socket.send("user message"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (MalformedURLException e1) { e1.printStackTrace(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } } 

NodeJS代码：

 var http = require('http') , io = require('socket.io'); var app = http.createServer(); app.listen(3000); console.log('Server running at http://127.0.0.1:3000/'); // Socket.IO server var io = io.listen(app) , nicknames = {}; io.sockets.on('connection', function (socket) { socket.on('user message', function (msg) { console.log('Server running at http://127.0.0.1:3000/'); socket.broadcast.emit('user message', {user: socket.nickname, message: msg.message}); }); socket.on('nickname', function (nick, fn) { console.log('Server running at http://127.0.0.1:3000/'); nickname = nick.nickname; if (nicknames[nickname]) { fn(true); } else { fn(false); nicknames[nickname] = socket.nickname = nickname; socket.broadcast.emit('announcement', {user: nickname, action: 'connected'}); io.sockets.emit('nicknames', nicknames); } }); socket.on('disconnect', function () { console.log('Server running at http://127.0.0.1:3000/'); if (!socket.nickname) return; delete nicknames[socket.nickname]; socket.broadcast.emit('announcement', {user: socket.nickname, action: 'disconected'}); socket.broadcast.emit('nicknames', nicknames); }); }); 

Answer 1

您的问题是node.js服务器在Localhost上运行，并且任何设备或模拟器都在虚拟机上运行，​​因此，请不要听您的PC的本地主机。 您需要更改url

 socket = new SocketIO("http://localhost:3000/"); 

对于

您的networking环境中您的机器的公共或静态IP，例如：

 socket = new SocketIO("http://192.168.1.23:3000/"); 

最好。 C