Jsp and JPanel problem

Question

Hello. I've been to this forum many times, but have always been a bit gunshy about posting anything of my own. Now I have a problem I haven't seen before, so here goes. I have a JPanel in a java program that has all sorts of other componants added to it. I am trying to display the whole thing in a jsp page. This is what I am doing in the java file to return the image ("display" is the JPanel):
public byte[] getImage(){
    int w = display.getWidth();
    int h = display.getHeight();
    BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    display.paint(img.createGraphics());
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    ImageIO.write(img, "jpeg", os);
    return os.toByteArray();
}and then in the jsp page I say:
<%@ page contentType="image/jpeg" %>
<%@ page import="myPackage.MyClass" %>
<%
     MyClass picture = new MyClass();
     byte[] b = picture.getImage();
     OutputStream os;
     os = response.getOutputStream();
     os.write(b);
     os.flush();
%>And the problem is that the page is displaying a blank JPanel and none of the componants that were added to it. If I save the the JPanel as a jpeg in the java program, though, it does contain all the componants, so I am not sure what I am doing wrong here. If there is some way to get the all the JPanel componants returned, that would be great to know. Thanks for any help.

Answer 1

nope, that didn't work.
Maybe I am going about solving the problem all wrong. The JPanel and its componants are kind of like a template. When a user of the system submits their information it automatically puts the data into the template and displays it on screen as a jpg. It works when I save the jpg as a file from the java program but not when i send the byte array to the jsp server. It just shows the blank panel....
Is there a better way to go about doing this?