public class BackgroundImage extends JFrame { JScrollPane scrollPane; ImageIcon icon; Image image;
public BackgroundImage() { icon = new ImageIcon("bgpanel.jpg");
JPanel panel = new JPanel() { protected void paintComponent(Graphics g) { // Dispaly image at at full size g.drawImage(icon.getImage(), 0, 0, null);
// Scale image to size of component// Dimension d = getSize();// g.drawImage(icon.getImage(), 0, 0, d.width, d.height, null); // Fix the image position in the scroll pane// Point p = scrollPane.getViewport().getViewPosition();// g.drawImage(icon.getImage(), p.x, p.y, null); super.paintComponent(g); } }; panel.setOpaque( false ); panel.setPreferredSize( new Dimension(400, 400) ); scrollPane = new JScrollPane( panel ); getContentPane().add( scrollPane );
import javax.swing.*;
import java.awt.*;
public class BackgroundImage extends JFrame
{
JScrollPane scrollPane;
ImageIcon icon;
Image image;
public BackgroundImage()
{
icon = new ImageIcon("bgpanel.jpg");
JPanel panel = new JPanel()
{
protected void paintComponent(Graphics g)
{
// Dispaly image at at full size g.drawImage(icon.getImage(), 0, 0, null);
// Scale image to size of component// Dimension d = getSize();// g.drawImage(icon.getImage(), 0, 0, d.width, d.height, null);
// Fix the image position in the scroll pane// Point p = scrollPane.getViewport().getViewPosition();// g.drawImage(icon.getImage(), p.x, p.y, null);
super.paintComponent(g);
}
};
panel.setOpaque( false );
panel.setPreferredSize( new Dimension(400, 400) );
scrollPane = new JScrollPane( panel );
getContentPane().add( scrollPane );
JButton button = new JButton( "Hello" );
panel.add( button );
}
public static void main(String [] args)
{
BackgroundImage frame = new BackgroundImage();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 300);
frame.setLocationRelativeTo( null );
frame.setVisible(true);
}
}http://blog.chinaunix.net/u/21684/showart_258857.html
去试试去