JFrame 배경 그림 설정 방법

import java.awt.FlowLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class JFrameBackground {
private JFrame frame = new JFrame("      ");
private JPanel imagePanel;
private ImageIcon background;
public static void main(String[] args) {
new JFrameBackground();
}
public JFrameBackground() {
background = new ImageIcon("003.jpg");//     
JLabel label = new JLabel(background);//               
//                      
label.setBounds(0, 0, background.getIconWidth(),
background.getIconHeight());
//         JPanel，       setOpaque()        
imagePanel = (JPanel) frame.getContentPane();
imagePanel.setOpaque(false);
//              BorderLayout
imagePanel.setLayout(new FlowLayout());
imagePanel.add(new JButton("    "));
frame.getLayeredPane().setLayout(null);
//                     
frame.getLayeredPane().add(label, new Integer(Integer.MIN_VALUE));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(background.getIconWidth(), background.getIconHeight());
frame.setResizable(false);
frame.setVisible(true);
}
}

원 블 로그 작가 님 감사합니다!! 원래 블 로그 주소:http://www.cnblogs.com/tianguook/archive/2012/03/06/2382217.html