androidsocket推送实现

这个代码只供初学者理解推送机制的原理，不建议使用到项目中。因为推送是一个对代码性能以及链接稳定性要求很高的东西。谢谢。
服务器端简单创建一个线程循环从ServerSocket中读取消息，并利用PrintWriter将消息推送到每一个设备。扩展可以实现基本的聊天功能。具体实现代码如下：

public Service(Socket socket) {this.socket = socket;try {in = new BufferedReader(new InputStreamReader(socket.getInputStream()));msg = "user" + this.socket.getInetAddress() + "come toal:" + mList.size();this.sendmsg();} catch (IOException e) {e.printStackTrace();}}@Overridepublic void run() {// TODO Auto-generated method stubtry {while (true) {if ((msg = in.readLine()) != null) {if (msg.equals("exit")) {System.out.println("ssssssss");mList.remove(socket);in.close();msg = "user:" + socket.getInetAddress() + "exit total:" + mList.size();socket.close();this.sendmsg();break;} else {msg = socket.getInetAddress() + ":" + msg;this.sendmsg();}}}} catch (Exception e) {e.printStackTrace();}}public void sendmsg() {System.out.println(msg);int num = mList.size();for (int index = 0; index < num; index++) {// /192.168.1.123// /192.168.1.123Socket mSocket = mList.get(index);PrintWriter pout = null;try {pout = new PrintWriter(new BufferedWriter(new OutputStreamWriter(mSocket.getOutputStream())), true);pout.println(msg);} catch (IOException e) {e.printStackTrace();}}}}

android端利用Socket监听端口来读取消息

public void run() {try {while (true) {if (socket.isConnected()) {if (!socket.isInputShutdown()) {if ((content = in.readLine()) != null) {content += "\n";mHandler.sendMessage(mHandler.obtainMessage());} else {}}}}} catch (Exception e) {e.printStackTrace();}

最后上源码

android 简单推送socket长链接

androidsocket推送实现

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