Server端：

import java.net.*;
import java.sql.SQLException;

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;
import java.io.*;

public class ServerTest extends Thread
{
       private ServerSocket serverSocket;
       Socket server;

       public ServerTest(int port) throws IOException, SQLException, ClassNotFoundException, Exception
       {
          serverSocket = new ServerSocket(port);
          serverSocket.setSoTimeout(180000);
       }

       public void run()
       {
           while(true)
          { 
               try
               {
                  server = serverSocket.accept();
                  DataInputStream din=new DataInputStream(server.getInputStream());
                  DataOutputStream dout=new DataOutputStream(server.getOutputStream());

                  dout.writeUTF("server: -i am greeting server");
                  dout.writeUTF("server:- hi! hello client");

                  System.out.println(din.readUTF());
                  System.out.println(din.readUTF());

                  BufferedImage img=ImageIO.read(ImageIO.createImageInputStream(server.getInputStream()));
                  
                  ImageIO.write(img,"jpg",new File("F:\\test.jpg")); 
                  System.out.println("Image received!!!!"); 
                  //lblimg.setIcon(img);
              }
             catch(SocketTimeoutException st)
             {
                   System.out.println("Socket timed out!");
                  break;
             }
             catch(IOException e)
             {
                  e.printStackTrace();
                  break;
             }
             catch(Exception ex)
            {
                  System.out.println(ex);
            }
          }
       }
       
       public static void main(String [] args) throws IOException, SQLException, ClassNotFoundException, Exception
       {
              //int port = Integer.parseInt(args[0]);
              Thread t = new ServerTest(6066);
              t.start();
       }
}
 

Client：

package lisa;

import java.net.*;
import java.io.*;
import java.awt.*;
import java.awt.image.BufferedImage;

import javax.imageio.*;
import javax.swing.ImageIcon;

public class ClientTest
{
    Image newimg;
    static BufferedImage bimg;
    byte[] bytes;

   public static void main(String [] args)
   {
      String serverName = "localhost";
      int port = 6066;
      try
      {
         System.out.println("Connecting to " + serverName
                             + " on port " + port);
         Socket client = new Socket(serverName, port);

         System.out.println("Just connected to "
                      + client.getRemoteSocketAddress());

        DataInputStream in=new DataInputStream(client.getInputStream());
        System.out.println(in.readUTF());
        System.out.println(in.readUTF());

         DataOutputStream out =
                       new DataOutputStream(client.getOutputStream());

         out.writeUTF("Hello from "
                      + client.getLocalSocketAddress());
         out.writeUTF("client: hello to server");

         ImageIcon img1=new ImageIcon("Ashish.jpg");
         Image img = img1.getImage();
         Image newimg = img.getScaledInstance(100, 120,  java.awt.Image.SCALE_SMOOTH);
         ImageIcon newIcon = new ImageIcon(newimg);

         bimg = ImageIO.read(new File("F:\\dili.jpg"));

         ImageIO.write(bimg,"JPG",client.getOutputStream());
         System.out.println("Image sent!!!!");
         client.close();
      }catch(IOException e)
      {
         e.printStackTrace();
      }
   }
}