Display images stored in the database

Question

I have images stored in the databse. I followed the steps provided in the oracle documentation. Now i want to retrive the image from the database into a java object that can be dislayed in , say, a JLabel. I am able to retrieve the image from the database into the OrdImage in the oracle.java.ord package and view the properties of the image. But unable to retrive the image as such to be displayed.
Thanking You
vinay

Answer 1

This might help...
import javax.imageio.*;
import javax.imageio.stream.*;
import javax.swing.*;
import java.awt.*;
import java.sql.*;
import java.io.*;
import oracle.jdbc.driver.*;
import oracle.sql.* ;
import oracle.ord.im.*;
import java.awt.event.*;
public class HelloDBImage implements ActionListener{
OracleConnection con = null;
JLabel label = null;
String textFieldString = "Image ID entered";
public void actionPerformed(ActionEvent e)
String prefix = "You typed \"";
if (e.getActionCommand().equals(textFieldString))
JTextField source = (JTextField)e.getSource();
ImageIcon imgIcon = createImageIcon(source.getText());
if (null != imgIcon)
// Create image Label
label.setText(null);
label.setIcon(imgIcon);
else
label.setIcon(null);
label.setText("Image not found! ");
source.setText("");
label.repaint();
//actionLabel.setText(prefix + source.getText() + "\"");
public ImageIcon createImageIcon(String key)
Image image = null;
ImageIcon imgIcon = null;
try
     // Connect to the database if necessary
if (null == con) con = connect();
// Create Input Stream from DB image.
InputStream is = new BufferedInputStream(
getDBInputStream(con, key));
if (null != is)
// Create Image from Image Input Stream
ImageInputStream iis = ImageIO.createImageInputStream(is);
image = ImageIO.read(iis);
// Create Image Icon from ImageInputStream
if (null != image) imgIcon = new ImageIcon(image);
} catch (Exception e)
System.out.println("exception raised " + e);
     e.printStackTrace();
return imgIcon;
public Component createPanelAndContents(String key)
// Create the image label
ImageIcon imgIcon = createImageIcon(key);
if (null != imgIcon)
// Create image Label
label = new JLabel(imgIcon);
else
label = new JLabel("Image not found! ");
// Create layout
GridBagLayout gridBag = new GridBagLayout();
// Create panel to draw in
JPanel pane = new JPanel();
pane.setLayout(gridBag);
GridBagConstraints c = new GridBagConstraints();
JScrollPane scrollPane = new JScrollPane(label,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
c.fill = GridBagConstraints.BOTH;
c.weightx = 1.0;
c.weighty = 1.0;
gridBag.setConstraints(scrollPane, c);
c.gridwidth = GridBagConstraints.REMAINDER;
c.fill = GridBagConstraints.HORIZONTAL;
scrollPane.setMinimumSize(new Dimension(300, 300));
pane.add(scrollPane, c);
// Add a text field and label to get anoter image
JTextField textField = new JTextField(10);
textField.setActionCommand(textFieldString);
textField.addActionListener(this);
// Add fields for input
JLabel promptLabel = new JLabel("Please enter DB key: ");
     pane.add(promptLabel);
pane.add(textField, c);
return pane;
public static void main(String[] args)
String key = "1";
try
UIManager.setLookAndFeel(
UIManager.getCrossPlatformLookAndFeelClassName());
} catch (Exception e) { }
//Create the top-level container and add contents to it.
JFrame frame = new JFrame("SwingApplication");
HelloDBImage app = new HelloDBImage();
if ((args.length > 0) && (args[0] != null)) key = args[0];
System.out.print("length= " + args.length + "/" );
if (args.length > 0) System.out.println(args[0]);
Component contents = app.createPanelAndContents(key);
frame.getContentPane().add(contents, BorderLayout.CENTER);
//Finish setting up the frame, and show it.
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
frame.pack();
frame.setVisible(true);
public InputStream getDBInputStream(OracleConnection con, String key)
InputStream is = null;
try
     int index = 0;
     Statement s = con.createStatement();
     OracleResultSet rs =
     (OracleResultSet)s.executeQuery("select * from images " +
"where item_id = " + key );
     if (rs.next()) // Just get first image if more than 1.
     index = rs.getInt(1);
     OrdImage imgObj =
(OrdImage) rs.getCustomDatum(2, OrdImage.getFactory());
is = imgObj.getContent().getBinaryStream();
catch(Exception e)
System.out.println("exception raised " + e);
e.printStackTrace();
return is;
public OracleConnection connect() throws Exception
String connectString;
Class.forName ("oracle.jdbc.driver.OracleDriver");
connectString = "jdbc:oracle:oci8:@orcl";
OracleConnection con = (OracleConnection)
DriverManager.getConnection(connectString,"scott",
                    "tiger");
con.setAutoCommit(false);
return con;