Display Images dynamically on a servlet

Question

I saw postings earlier on this topic and adopted the suggestions given , but I can display only a single image.This works for a single image jpg .All the files uploaded are
into c:\temp. The Servlet program parses through the dir and picks up
only jpg's (since I want to display all jpg's first and then expand to
gif's).The servlet now displays only an icon but no images .
I initially brought all the images in to a ArrayList but I thought its
better to display directly from the filesystem.
Please let me know what is the problem
import java.io.*;
import java.util.*;
import java.lang.*;
import javax.servlet.http.*;
import javax.servlet.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.swing.*;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import com.sun.image.codec.jpeg.* ;
* @author
public class DisplayImage extends HttpServlet
java.util.List aList = new ArrayList();
public void service(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException
String path= "c:\\temp\\";
File f = new File(path);
String[] dirList = f.list();
int l=100;
int k=100;
response.setContentType("image/jpeg");
OutputStream out = response.getOutputStream();
PrintWriter out = response.getWriter();
for( int i = 0; i < dirList.length; ++i )
String fExt= "jpg";
// System.out.println(">>The files in the dir are>>:"+dirList[i] );
String filename = dirList.toString();
// System.out.println("FileName is"+filename);
int sLength = filename.length();
int sLastIndex = filename.lastIndexOf(".",sLength);
//System.out.println(">>Last Index Value>>"+sLastIndex);
String imageExt = filename.substring(sLastIndex+1,sLength);
//System.out.println(">>ImageExtensionis>>"+imageExt);
if(imageExt.equalsIgnoreCase(fExt))
String imagefilename = path+filename;
//System.out.println(">>Final filename is>> "+imagefilename);
Image myImage = new ImageIcon(imagefilename).getImage();
BufferedImage outImage = new BufferedImage(10,10 ,BufferedImage.TYPE_INT_RGB);
Graphics2D d2g = outImage.createGraphics();
d2g.drawImage(myImage, l, k, null);
//AffineTransformOp afo = new AffineTransformOp(af,1);
//BufferedImageFilter bf = new BufferedImageFilter(afo);
//d2g.drawImage(myImage, null, l,k);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(outImage);
k+=100;
else
System.out.println(">>Not a jpeg file>>");
out.close();

Answer 1

Thanks for the reply.
What I intend to do is :
1.Displa.jsp calls a servlet DisplayImage
2.DisplayImage goes to a known directory in the filesystem and picks up all images.
3.Display all the images on the servlet at once in thumbnail fashion.
4.Click on each image to enlarge it.
So far I am stuck at step 3.
So how do I proceed about on this problem , do I need to open and close the request in the for loop each time?