Swing在JPanel加背景图片的方法

package com.tntxia.commonswing.panel;

import java.awt.*;
import javax.swing.JPanel;

/**
 * 有背景图片的Panel类
 * @author tntxia
 *
 */
public class BackgroundPanel extends JPanel {
	
	/**
	 * 
	 */
	private static final long serialVersionUID = -6352788025440244338L;
	
	private Image image = null;

	public BackgroundPanel(Image image) {
		this.image = image;
	}

	// 固定背景图片，允许这个JPanel可以在图片上添加其他组件
	protected void paintComponent(Graphics g) {
		g.drawImage(image, 0, 0, this.getWidth(), this.getHeight(), this);
	}
}

 

调用的方法：

 

Image image=new ImageIcon("images/bg.gif").getImage();
JPanel panel = new BackgroundPanel(image);