java 简单的socket 通讯

-------------------服务端-------------------------------

import java.net.*; 

import java.io.*; 

public class server 

{ 

private ServerSocket ss; 

private Socket socket; 

private BufferedReader in; 

private PrintWriter out; 

public server() 

{ 

try 

{ 

ss = new ServerSocket(8888); 

while (true) 

{ 

socket = ss.accept(); 

in = new BufferedReader(new InputStreamReader(socket.getInputStream())); //读取socket 中的流

String line = in.readLine(); 

System.out.println(line);

out.close(); 

in.close(); 

socket.close(); 

} 

} 

catch (IOException e) 

{} 

} 

public static void main(String[] args) 

{ 

new server(); 

} 

}

-----------------------客户端----------------------

import java.io.*; 

import java.net.*; 

public class client 

{ 

Socket socket; 

BufferedReader in; 

PrintWriter out; 

public client() 

{ 

try 

{ 

socket = new Socket("xxx.xxx.xxx.xxx", 8888); //服务端IP 和 端口

in = new BufferedReader(new InputStreamReader(socket.getInputStream())); 

out = new PrintWriter(socket.getOutputStream(),true); 

out.println("what up"); //发给服务端的内容

out.flush();

out.close(); 

in.close(); 

socket.close(); 

} 

catch (IOException e) 

{} 

} 

public static void main(String[] args) 

{ 

new client(); 

} 

}