Android下使用Socket连接网络电脑

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

1. package Hello.MySocket;  
2. import java.io.BufferedReader;  
3. import java.io.BufferedWriter;  
4. import java.io.IOException;  
5. import java.io.InputStreamReader;  
6. import java.io.OutputStreamWriter;  
7. import java.io.PrintWriter;  
8. import java.net.Socket;  
9. import java.net.UnknownHostException;  
10. import android.app.Activity;  
11. import android.os.Bundle;  
12. import android.util.Log;  
13. import android.view.View;  
14. import android.widget.Button;  
15. import android.widget.EditText;  
16. import android.widget.TextView;  
17. public class MySocket extends Activity {  
18.     private final String DEBUG_TAG="lengfeng";  
19.     public void onCreate(Bundle savedInstanceState) {  
20.         super.onCreate(savedInstanceState);  
21.         setContentView(R.layout.main);  
22.           
23.         Log.v("lengfeng","Android Start Connect");  
24.           
25.                 Socket socket=null;  
26.                 String mesg="my name is log /r/n";  
27.                 try {  
28.                     socket=new Socket("10.0.2.2",54321);  
29.                     //向服务器发送信息   
30.                     PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);  
31.                     out.println(mesg);  
32.                       
33.                     //接受服务器的信息   
34.                     BufferedReader br=new BufferedReader(new InputStreamReader(socket.getInputStream()));  
35.                     String mstr=br.readLine();  
36.                     if(mstr!=null)  
37.                     {  
38.                         Log.e(DEBUG_TAG,mesg);  
39.                     }else  
40.                     {  
41.                         Log.e(DEBUG_TAG,"数据错误");  
42.                     }  
43.                     out.close();  
44.                     br.close();  
45.                     socket.close();  
46.                 } catch (UnknownHostException e) {  
47.                     e.printStackTrace();  
48.                 } catch (IOException e) {  
49.                     e.printStackTrace();  
50.                 }catch(Exception e)  
51.                 {  
52.                     Log.e(DEBUG_TAG,e.toString());  
53.                 }  
54.     }  
55. }  

PC上面的Server 创建一个java的项目

1. import java.io.BufferedReader;  
2. import java.io.BufferedWriter;  
3. import java.io.IOException;  
4. import java.io.InputStreamReader;  
5. import java.io.OutputStreamWriter;  
6. import java.io.PrintWriter;  
7. import java.net.ServerSocket;  
8. import java.net.Socket;  
9.       
10. public class MyJavaServer {  
11.     /** 
12.      * @param args 
13.      */  
14.       
15.     public static void main(String[] args) {  
16.         // TODO Auto-generated method stub   
17.         System.out.print("MyJavaServer Start Runing/n");  
18.           
19.         try {  
20.             ServerSocket serverSocket=new ServerSocket(54321);  
21.             while(true)  
22.             {  
23.                 System.out.println("接收用户连接：");  
24.                 //接受客户端请求   
25.                 Socket client=serverSocket.accept();  
26.                 System.out.println("accept:");  
27.                 try  
28.                 {  
29.                     //接受客户端信息   
30.                     BufferedReader in=new BufferedReader(new InputStreamReader(client.getInputStream()));  
31.                     String str=in.readLine();  
32.                     System.out.println("read:"+str);  
33.                     //向服务器发送消息   
34.                     PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(client.getOutputStream())),true);  
35.                     out.println("Server Message："+str);  
36.                     in.close();  
37.                     out.close();  
38.                 }catch(Exception ex)  
39.                 {  
40.                     System.out.println(ex.getMessage());  
41.                     ex.printStackTrace();  
42.                 }  
43.                 finally  
44.                 {  
45.                     client.close();  
46.                     System.out.println("close");  
47.                 }  
48.             }  
49.         } catch (IOException e) {  
50.             System.out.println(e.getMessage());  
51.         }  
52.     }  
53.       
54. }