How to display "Image" object in the browser?

can anyone please tell me how can i display "Image" object in the browser?
I have an image object that i retrieved from AS400 BLOB object by using toolbox.jar (for as400 access for java including all necessary classes like jdbc driver, security etc.).
i want to display this object in the browser so i will be able to web-enable my BLOB objects stored on as400.thx...

In your HTML:
<img src="ImageServlet">
In ImageServlet:
Make calls to DB to get your image as byte array and store it in:
byte[] buffer = new byte[imageSize];
ServletOutputStream out = response.getOutputStream();
for(int i = 0; i < imageSize; i++)
out.write(buffer, i, 1);
out.close();

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cheers

How to display image using from open dialog box?

I've developed a program that can display image by named the file that I want to display in my program.
But how can I display an image from an Open Dialog Box?
I attch here with my program.
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.filechooser.*;
public class SuDisplayTool6 extends JFrame implements InternalFrameListener,ActionListener
JTextArea display1;
JDesktopPane desktop;
JInternalFrame displayWindow;
JInternalFrame listenedToWindow;
static final String SHOW = "Show Image";
static final int desktopWidth = 800;
static final int desktopHeight = 600;
private static final int kControlX = 88 ;
private DrawingPanel panel;
public SuDisplayTool6(String title)
super("Internal Frame");
desktop = new JDesktopPane();
desktop.putClientProperty("JDesktopPane.dragMode","outline");
desktop.setPreferredSize(new Dimension(desktopWidth, desktopHeight));
setContentPane(desktop);
addMenu();
createDisplayWindow();
desktop.add(displayWindow);
Dimension displaySize = displayWindow.getSize();
displayWindow.setSize(desktopWidth, displaySize.height);
protected void createDisplayWindow()
JButton b1 = new JButton("Show Image");
b1.setActionCommand(SHOW);
b1.addActionListener(this);
display1 = new JTextArea(3,30);
display1.setEditable(false);
JScrollPane textScroller = new JScrollPane(display1);
textScroller.setPreferredSize(new Dimension(200,75));
textScroller.setMinimumSize(new Dimension(10,10));
displayWindow = new JInternalFrame("Header Graph",true,false,true,true);
JPanel contentPane = new JPanel();
contentPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
contentPane.setLayout(new BoxLayout(contentPane, BoxLayout.Y_AXIS));
contentPane.add(Box.createRigidArea(new Dimension(0,5)));
contentPane.add(textScroller);
b1.setAlignmentX(CENTER_ALIGNMENT);
contentPane.add(b1);
displayWindow.setContentPane(contentPane);
displayWindow.pack();
displayWindow.show();
protected void createListenedToWindow()
listenedToWindow = new JInternalFrame("Image",true,true,true,true);
listenedToWindow.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
listenedToWindow.setSize(800,450);
panel = new DrawingPanel();
listenedToWindow.setContentPane(panel);
public void internalFrameClosing(InternalFrameEvent e)
public void internalFrameClosed(InternalFrameEvent e)
listenedToWindow = null;
public void internalFrameOpened(InternalFrameEvent e)
public void internalFrameIconified(InternalFrameEvent e)
public void internalFrameDeiconified(InternalFrameEvent e)
public void internalFrameActivated(InternalFrameEvent e)
public void internalFrameDeactivated(InternalFrameEvent e)
public void actionPerformed(ActionEvent e)
if (e.getActionCommand().equals(SHOW))
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listenedToWindow.addInternalFrameListener(this);
desktop.add(listenedToWindow);
listenedToWindow.setLocation(desktopWidth/2 - listenedToWindow.getWidth()/2,
desktopHeight - listenedToWindow.getHeight());
listenedToWindow.show();
else
public static void main(String[] args)
JFrame frame = new SuDisplayTool6("Su Display Tool");
frame.addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
frame.pack();
frame.setVisible(true);
private void addMenu()
JMenuBar menuBar;
JMenu menu, submenu;
JMenuItem menuItem;
final JFileChooser fc = new JFileChooser();
fc.addChoosableFileFilter(new ImageFilter());
menuBar = new JMenuBar();
setJMenuBar(menuBar);
menu = new JMenu("File");
menuBar.add(menu);
menuItem = new JMenuItem("Open...");
menu.add(menuItem).addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
int returnVal = fc.showOpenDialog(SuDisplayTool6.this);
menuItem = new JMenuItem("Save");
menu.add(menuItem);
menuItem = new JMenuItem("Save As...");
menu.add(menuItem).addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
int returnVal = fc.showSaveDialog(SuDisplayTool6.this);
menuItem = new JMenuItem("Close");
menu.add(menuItem);
menu.addSeparator();
menuItem = new JMenuItem("Exit");
menu.add(menuItem).addActionListener(new WindowHandler());
menu = new JMenu("Edit");
menuBar.add(menu);
menu = new JMenu("View");
menuBar.add(menu);
menuItem = new JMenuItem("Zoom In");
menu.add(menuItem);
menuItem = new JMenuItem("Zoom Out");
menu.add(menuItem);
menu.addSeparator();
submenu = new JMenu("Header");
menuItem = new JMenuItem("CDPX");
submenu.add(menuItem);
menuItem = new JMenuItem("SX");
submenu.add(menuItem);
menuItem = new JMenuItem("CX");
submenu.add(menuItem);
menu.add(submenu);
menu = new JMenu("Help");
menuBar.add(menu);
menuItem = new JMenuItem("About");
menu.add(menuItem).addActionListener(new WindowHandler());
private class WindowHandler extends WindowAdapter implements ActionListener
public void windowClosing(WindowEvent e)
System.exit(0);
public void actionPerformed(ActionEvent e)
if(e.getActionCommand().equalsIgnoreCase("exit"))
System.exit(0);
else if(e.getActionCommand().equalsIgnoreCase("About"))
JOptionPane.showMessageDialog(null,"This program is written by Nenny Ruthfalydia.","About",JOptionPane.PLAIN_MESSAGE);
class DrawingPanel extends Panel
final ImageIcon imageIcon = new ImageIcon("image8.jpg");
Image image = imageIcon.getImage();
public void paint (Graphics g)
g.drawImage(image, 10, 10, this);

so much wrong with this post...
a) use the code tags to format the code. Now it is an unreadable mess
b) scriptlets in your JSP. I don't even want to look at that mess. Learn how to combine servlets and JSPs to create clean, readable and maintainable code in which view logic and business logic are separated. The rule: no java code in your JSP, only tags and EL expressions (learn about JSTL).
So you get a blank screen. When you do "view source" in your browser, do you see anything there? If nothing, check if you are behind a proxy server. The solution to a post of not too long ago was that the blank screen was being caused by faulty proxy server settings (the user figured it out himself, I don't know what was done to solve it).
If all this fails you will have to do some debugging magic using your favorite IDE. It will probably be something stupid you are overlooking in the code. It is annoying, but debugging code that does not work is a big part of your job. Better get good at it.

How to display images and information

how to display images and information(e.g. like questions) on a jsp page that stored in a database

Look As far as i can see....
Utlimately every file could be expressed as a bytes buffer.
so say if you have a bean called Choice Bean which is expressed as
public class ChoiceBean{
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   private String choicedesc;
   private byte image[];
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      public void setChoiceDesc(String choicedesc){
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         public byte[] getImage(){
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===============
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                     if(cb.getChoiceId().equals(choiceid)){
                            index = i;
                            break;
             return index;
    /* Other member method declarations */
}and you are retreving List<ChoiceBean> from DB using your query & have created a session attribute / <jsp:useBean> named ChoiceList
NOTE: sometimes your application server can go out of bounds as you are consuming a lot of memory by creating an arraylist object.
use the following methodology to display images & choices
sample.jsp:
=========
<jsp:useBean id="QuestionList" class="com.qpa.dao.QuestionList" scope="session"/>
<TABLE>
<%
/* QuestionList.getChoiceList() is a method which fetches data from the DB & returns it in form of List<ChoiceBean> */
List<ChoiceBean> choicelist = QuestionList.getChoiceList();
for(int i =0 ; i < choicelist.size() ; i++){
%>
<TR>
<TD><%!=choicelist.get(i).getChoiceId()%></TD>

<TD><IMAGE src="ImageServlet?choiceid=<%!=choicelist.get(i).getChoiceId()%>"/> </TD>
<TD><%!=choicelist.get(i).getChoiceDesc()%></TD>
</TR>
<%
%>
</TABLE>
<%
    session.remove("QuestionList");
%>
NOTE: usage of JSTL or any other custom built tag-libraries makes life more simpler in the following case
ImageServlet.java:
===============
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        byte buffer[] = null;
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        /*getting the QuestionList from the session*/
        QuestionList ql = null;
        String choiceid = new String("");
        try{
             choiceid = request.getParameter("choiceid");
             /*getting the QuestionList from the session*/
            ql = (QuestionList) session.getAttribute("QuestionList");
        } catch(Exception exp){
        if(choiceid.equals("") == false && ql != null ){
            List<ChoiceBean> clist = QuestionList.getChoiceList();
               assuming that you have created a serach method which searches the entire choice list and would give you
               the index of that object which is being refered by unique choiceid and returns -1 if not found
            int index = QuestionList.search(choiceid);
            if(index != -1){
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               buffer = cb.getImage();
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             // assuming that we have stored images in JPEG format only
             JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(new ByteArrayInputStream(buffer));
             BufferedImage image =decoder.decodeAsBufferedImage();
             response.setContentType("image/jpeg");
             // Send back image
             ServletOutputStream sos = response.getOutputStream();
             JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(sos);
             encoder.encode(image);
        } else {
           response.setContentType("text/html");
           response.getWriter().println("<b>Image data not found</b>");
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Hope this might help :)
REGARDS,
RaHuL

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