Android Socket编程初探

Android与PC通过Socket进行通信。

PC: Server
Android:Client

服务端程序：

package wu.bu.server;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.net.InetAddress;import java.net.NetworkInterface;import java.net.ServerSocket;import java.net.Socket;import java.net.SocketException;import java.util.Enumeration;public class Server {// 监听器对象private ServerSocket server;/** * 实例化，指定监端口 *  * @param port */public Server(int port) {try {// 指定监听端口和最大访问数量server = new ServerSocket(port, 10);} catch (IOException e) {e.printStackTrace();}}public void Listener() {while (true) {try {System.out.println("begin");// 开始监听，等待数据的到来final Socket socket = server.accept();// 新的线程new Thread(new Runnable() {public void run() {// 缓冲器BufferedReader buffer;try {buffer = new BufferedReader(new InputStreamReader(socket.getInputStream(), "UTF-8"));while (!socket.isClosed()) {String str;str = buffer.readLine();if (str == null)break;System.out.println(str);}System.out.println("--------------------");socket.close();} catch (UnsupportedEncodingException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}).start();} catch (IOException e) {e.printStackTrace();}}}/** * @vennle *  * @param args */public static void main(String[] args) {// 设置5554为服务器监听端口new Server(5554).Listener();}}

client端：

package com.bu.client;import java.io.IOException;import java.io.PrintWriter;import java.io.UnsupportedEncodingException;import java.net.Socket;import java.net.UnknownHostException;public class ClientSocket {private Socket socket;private final static String IP = "10.0.129.143";private final static int PORT = 5554;public ClientSocket() {super();if (socket == null) {try {socket = new Socket(IP, PORT);} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}public void send(String msg) {try {PrintWriter out = new PrintWriter(socket.getOutputStream());out.println(msg);out.flush();} catch (UnsupportedEncodingException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}public synchronized void close() {try {socket.close();socket = null;} catch (IOException e) {e.printStackTrace();}}}

Activity：

package com.bu.client;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;public class SocketClient extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);final EditText text = (EditText) this.findViewById(R.id.et_msg);final Button button = (Button) this.findViewById(R.id.btn_send);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {ClientSocket socket = new ClientSocket();String str = text.getText().toString();socket.send(str);socket.close();}});}}

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