java source code of ImgCry2

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import javax.swing.JFileChooser;
import javax.crypto.Cipher;
import javax.crypto.CipherOutputStream;
import javax.crypto.spec.SecretKeySpec;
import javax.swing.JOptionPane;
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class ImgCry2 extends HttpServlet {  // JDK 1.6 and above only
 
   // The doGet() runs once per HTTP GET request to this servlet.
   @Override
   public void doGet(HttpServletRequest request, HttpServletResponse response)
               throws ServletException, IOException {
      // Set the MIME type for the response message
      response.setContentType("text/html");
      // Get a output writer to write the response message into the network socket
      PrintWriter out = response.getWriter();
	  
	  
	  
	  
	  String a = request.getParameter("img");
	  String b = "C:\\Users\\SMP\\Desktop\\Sky.jpg";
	  try {
         out.println("<html>");
         out.println("<head><title>Image Decryption</title></head>");
         out.println("<body>");
         out.println("<h1>Image Decryption</h1>");
         // Generate a random number upon each request
         out.println("<p>Random Number: <strong>" + Math.random() + "</strong></p>");    
         

	  
	  
		  try{
            FileInputStream file = new FileInputStream("C:\\Users\\SMP\\Documents\\apache-tomcat-7.0.81\\bin\\Encrypt.jpg");
            FileOutputStream outStream = new FileOutputStream("Decrypt.jpg");
            byte k[]="CooL2116NiTh5252".getBytes();
            SecretKeySpec key = new SecretKeySpec(k, "AES");
            Cipher enc = Cipher.getInstance("AES");
            enc.init(Cipher.DECRYPT_MODE, key);
            CipherOutputStream cos = new CipherOutputStream(outStream, enc);
            byte[] buf = new byte[1024];
            int read;
            while((read=file.read(buf))!=-1){
                cos.write(buf,0,read);
            }
            file.close();
            outStream.flush();
            cos.close();
            out.println("The image was decrypted successfully");
            Runtime.getRuntime().exec("rundll32 url.dll, FileProtocolHandler "+"Decrypt.jpg");
        }catch(Exception e){
            out.println(""+ e);
        }
			out.println("</body></html>");
		}finally {
         out.close();  // Always close the output writer
		}
	}
}