Android下使用Socket连接网络电脑

既然是使用SOCKET连接网络上的电脑，就分为两部分

其一,Android上面的Client

其二,PC上的Server

Android上面的实现代码如下

package Hello.MySocket;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.Socket;import java.net.UnknownHostException;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;public class MySocket extends Activity {private final String DEBUG_TAG="lengfeng"; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Log.v("lengfeng","Android Start Connect"); Socket socket=null;String mesg="my name is log \r\n";try {socket=new Socket("10.0.2.2",54321);//向服务器发送信息PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);out.println(mesg);//接受服务器的信息BufferedReader br=new BufferedReader(new InputStreamReader(socket.getInputStream()));String mstr=br.readLine();if(mstr!=null){Log.e(DEBUG_TAG,mesg);}else{Log.e(DEBUG_TAG,"数据错误");}out.close();br.close();socket.close();} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}catch(Exception e){Log.e(DEBUG_TAG,e.toString());} }}

PC上面的Server 创建一个java的项目

import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;public class MyJavaServer {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubSystem.out.print("MyJavaServer Start Runing\n");try {ServerSocket serverSocket=new ServerSocket(54321);while(true){System.out.println("接收用户连接：");//接受客户端请求Socket client=serverSocket.accept();System.out.println("accept:");try{//接受客户端信息BufferedReader in=new BufferedReader(new InputStreamReader(client.getInputStream()));String str=in.readLine();System.out.println("read:"+str);//向服务器发送消息PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(client.getOutputStream())),true);out.println("Server Message："+str);in.close();out.close();}catch(Exception ex){System.out.println(ex.getMessage());ex.printStackTrace();}finally{client.close();System.out.println("close");}}} catch (IOException e) {System.out.println(e.getMessage());}}}

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