package WebProgramingDemo;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.OutputStream;

 import java.net.Socket;

 import java.net.UnknownHostException;

 public class SocketDemo {

     /**

      * @param args

      * @throws IOException

      * @throws UnknownHostException

      */

     public static void main(String[] args) throws  IOException {

         Socket s=new Socket("192.168.2.103",10002);

         OutputStream out=s.getOutputStream();

         out.write("Java".getBytes());

         InputStream is=s.getInputStream();

         byte buf[]=new byte[1024];

         int len=is.read(buf);

         System.out.println(new String(buf,0,len));

         s.close();

     }

 }

 package WebProgramingDemo;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.OutputStream;

 import java.net.ServerSocket;

 import java.net.Socket;

 public class ServerSocketDemo {

     /**

      * @param args

      * @throws IOException

      */

     public static void main(String[] args) throws IOException {

         ServerSocket ss = new ServerSocket(10002);

         Socket s = ss.accept();

         String ip = s.getInetAddress().getHostAddress();

         System.out.println(ip + "....connected....");

         InputStream in = s.getInputStream();

         int len = 0;

         byte[] buf = new byte[1024];

         len = in.read(buf);

         System.out.println(new String(buf, 0, len));

         OutputStream os=s.getOutputStream();

         os.write("收到".getBytes());

         os.close();

         s.close();

         ss.close();

     }

 }