import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import java.net.*;
public class test_client extends Applet {
       public void init() {
	Button b = new Button("submit");
	b.addActionListener(new ActionListener() {
	  public void actionPerformed(ActionEvent ae) {
	     showStatus("button pressed");
             try {
		BufferedImage bi =new BufferedImage(100,100,BufferedImage.TYPE_INT_ARGB);
		Graphics2D g2 = bi.createGraphics();
                Graphics g = getGraphics();
		g.setColor(Color.BLUE);
		g.drawLine(100,100,200,200);
                g2=(Graphics2D)g;   
		URL url = new URL("http://10.70.70.1:8080/servlet/send_client");
                HttpURLConnection con =(HttpURLConnection)url.openConnection();
            	con.setDoInput(true);
		con.setDoOutput(true);
		con.setRequestMethod("POST");
                con.setRequestProperty("Content-Type", "image/jpeg");   
		ImageIO.write(bi,"JPEG",con.getOutputStream());
		con.disconnect();
	    } catch (Exception e) {
		 showStatus(e.toString());
           }
	 }
      });
      add(b);
   }
}

import java.net.*;
import java.io.*;
import java.util.*;
import java.lang.*;
import java.lang.Object;
import javax.servlet.*;
import javax.servlet.http.*;
public class send_client extends HttpServlet {
     public void doPost(HttpServletRequest req, HttpServletResponse res)
                   throws ServletException, IOException
     {      
	 try{
            InputStream in = req.getInputStream();
            int count;
	    byte[] buffer = new byte[8192];
            ServletContext servletContext = getServletContext();
            String file = servletContext.getRealPath("new.jpg");
            FileOutputStream fis = new FileOutputStream(file);
	    while ((count = in.read(buffer)) > 0){
	    fis.write(buffer, 0, count); 
	    fis.flush();
            }
	    fis.close();
	 }
	 catch (Exception e)
	 {
		e.printStackTrace();
	 }
     }
}

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.ServletException;
import java.io.*;
 
public class IShareServer extends HttpServlet {
 
   public void doPost(HttpServletRequest req,HttpServletResponse res)
    {      
      try
         {
    		  DataInputStream fromClient = new DataInputStream( req.getInputStream() );
    		  ByteArrayOutputStream baos=new ByteArrayOutputStream(Integer.parseInt(req.getParameter("LEN")));
    		  byte[] buff = new byte[1024];
    		  int cnt = 0;
    		  while( (cnt = fromClient.read( buff )) > -1 ) 
    		  {
    			  baos.write(buff, 0, cnt );
    		  }
    		  baos.flush();
    		  byte [] check=baos.toByteArray();
         saveimage(baos.toByteArray());
    		    baos.close();
    		    fromClient.close();
    		    res.setContentType("text/html");
    		    ServletOutputStream out = res.getOutputStream();    		  
    		    out.flush();
    		    out.close();
    	        }
        catch(Exception e) { e.printStackTrace();  }
   	}
 
  private void saveimage(byte [] buf)
   {
	 String fileName = "D:/temp1/ServletImage.jpg";
	 String path = fileName;
	 try
	 	{
	      File yourFile = new File(path);
	  	  FileOutputStream toFile = new FileOutputStream( yourFile );  
	  	  toFile.write(buf);        
	  	  toFile.flush();
	  	  toFile.close();
 
	  	}
	 catch (Exception e) { 		}
  }
 
}