怎么为Java程序添加背景图片代码？

仅仅是给窗口添加背景的话是很简单的，添加上以下语句（自己去添加变量哈）：\x0d\x0a\x0d\x0alabel = new JLabel(background); //background为ImageIcon\x0d\x0a// 把标签的大小位置设置为图片刚好填充整个面板 \x0d\x0alabel.setBounds(0, 0, this.getWidth(), this.getHeight());\x0d\x0a//添加图片到frame的第二层(把背景图片添加到分层窗格的最底层作为背景)\x0d\x0athis.getLayeredPane().add(label,new Integer(Integer.MIN_VALUE));\x0d\x0a//把内容窗格转化为JPanel，否则不能用方法setOpaque()来使内容窗格透明\x0d\x0ajPanel=(JPanel)this.getContentPane();\x0d\x0a//设置透明\x0d\x0ajPanel.setOpaque(false);\x0d\x0a\x0d\x0a然后你上面那个JPanel p也设置成透明就可以了

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java swing添加图片

在java swing中需要为容器添加图片，或者背景图片。

提供两种简单的解决方案，一种利用JPanel，另一种利用JLabel

1.JPanel（源代码）

package oo;

import java.awt.Graphics;

import java.awt.Image;

import java.io.File;

import javax.swing.ImageIcon;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class Drawing {

JFrame jframe = new JFrame();

public static JPanel GImage = null;

public Drawing() {

initFrame();

}

// 初始化窗口

public void initFrame() {

// 利用JPanel添加背景图片

GImage = new JPanel() {

protected void paintComponent(Graphics g) {

ImageIcon icon = new ImageIcon("image\\benbenla.jpg");

Image img = icon.getImage();

g.drawImage(img, 0, 0, icon.getIconWidth(),

icon.getIconHeight(), icon.getImageObserver());

jframe.setSize(icon.getIconWidth(), icon.getIconHeight());

}

};

jframe.setTitle("测试背景图片");

jframe.add(GImage);

jframe.pack();

jframe.setVisible(true);

jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public static void main(String[] args) {

new Drawing();

}

}

2.JLabel源代码

package swing.draw;

import java.awt.Image;

import javax.swing.ImageIcon;

import javax.swing.JFrame;

import javax.swing.JLabel;

public class Drawing2 {

JLabel jlpic = new JLabel();

JFrame jframe = new JFrame();

public Drawing2() {

init1Frame();

}

public void init1Frame() {

ImageIcon icon = new ImageIcon("image\\benbenla.jpg");

icon.setImage(icon.getImage().getScaledInstance(icon.getIconWidth(),

icon.getIconHeight(), Image.SCALE_DEFAULT));

System.out.println(icon.getIconHeight() + "" + icon.getIconWidth());

jlpic.setBounds(0, 0, 1366, 768);

jlpic.setHorizontalAlignment(0);

jlpic.setIcon(icon);

jframe.setSize(1366, 768);

jframe.add(jlpic);

jframe.pack();

jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jframe.setVisible(true);

}

public static void main(String args[]) {

new Drawing2();

}

}

页面特效:下星星的代码(JAVA代码)

以下的代码就可以，lz自己在*的地方填入星星的图片就可以了

body bgcolor=#ee3300

style

.drop { position: absolute; width: 3; filter: flipV(), flipH(); font-size: 40; color: #ffffff }

/style

script language="javascript"

snow = false; // false-rain; true-snow

snowsym = " * " are the symbols for each

rainsym = " * " can put images here.

howmany = 20 many drops/snowflakes?

/**************Do not need to change anything below***********/

if(snow){sym = snowsym; speed=1; angle=10; drops=howmany}

else{sym = rainsym; speed=30; drops=howmany; angle=6}

movex = -speed/angle; movey = speed; count = 0;

function moverain(){

for(move = 0; move drops; move++){

xx[move]+=movex; yy[move]+=mv[move];

hmm = Math.round(Math.random()*1);

if(xx[move] 0){xx[move] = maxx+10;}

if(yy[move] maxy){yy[move] = 10;}

drop[move].left = xx[move]

drop[move].top = yy[move]+document.body.scrollTop;

}setTimeout('moverain()','1')}

/script

script language="javascript"

if (document.all){

drop = new Array(); xx = new Array(); yy = new Array(); mv = new Array()

ly = "document.all[\'"; st = "\'].style"

for(make = 0; make drops; make++){

document.write('div id="drop'+make+'" class=drop'+sym+'/div');

drop[make] = eval(ly+'drop'+make+st);

maxx = document.body.clientWidth-40

maxy = document.body.clientHeight-40

xx[make] = Math.random()*maxx;

yy[make] = -100-Math.random()*maxy;

drop[make].left = xx[make]

drop[make].top = yy[make]

mv[make] = (Math.random()*5)+speed/16;

drop[make].fontSize = (Math.random()*10)+20;

if(snow){col = 'white'}else{col = 'white'}

drop[make].color = col;

}

window.onload=moverain

}

/script

/body

标题名称：java添加特效图片代码 java特效是什么
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