java中窗体背景图片_Java Swing 之设置窗体背景图片

/**

* 设置窗体背景图片

* @author gao

*/

package com.gao;

import java.awt.Graphics;

import java.awt.Image;

import javax.swing.ImageIcon;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class BackgroundDemo extends JFrame{

private Image image;

private static final long serialVersionUID=-1588458291133087637L;

public BackgroundDemo(){

this.setTitle("设置窗体的背景颜色");

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setBounds(0 , 0, 400,300 );

JPanel contentPane=new JPanel(){

@Override

public void paint(Graphics g) {

ImageIcon icon=new ImageIcon("2.jpg");

image=icon.getImage();

g.drawImage(image, 0,0,null);

// TODO Auto-generated method stub

}

};

this.add(contentPane);

this.setVisible(true);

}

public static void main(String[]args){

BackgroundDemo example=new BackgroundDemo();

}

}