代码如下：
- Java code
import javax.imageio.ImageIO;import javax.swing.*;import java.awt.*;import java.awt.image.*;import java.awt.event.*;import java.io.*;public class AppPanel extends JPanel { //variables and components========================== private JPanel imageBox; private JPanel toolPane; private JLabel counterLabel; private int counter; private boolean showWholeImage; private JButton selectButton; private JButton breakButton; private JButton viewImageButton; private Image[] images; private Image wholeImage; private JFileChooser chooser; //constructor============================= public AppPanel(){ //initial variables chooser = new JFileChooser(); images=new BufferedImage[24]; wholeImage=null; showWholeImage = true; counter=0; setLayout(new BorderLayout()); //initial components imageBox = new JPanel(); imageBox.setBackground(Color.WHITE); toolPane = new JPanel(); counterLabel = new JLabel("操作次数："+counter); viewImageButton = new JButton("显示原图"); selectButton = new JButton("选择图片"); selectButton.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent event){ if(JFileChooser.APPROVE_OPTION==chooser.showOpenDialog(null)){ try{ wholeImage = ImageIO.read(chooser.getSelectedFile()); showWholeImage=true; repaint(); } catch(Exception e){ JOptionPane.showMessageDialog(null, "打开文件失败"); } } } }); breakButton = new JButton("打乱图片"); toolPane.add(counterLabel); toolPane.add(selectButton); toolPane.add(breakButton); toolPane.add(viewImageButton); add(toolPane,BorderLayout.SOUTH); add(imageBox); } //paintComponents public void paintComponent(Graphics g){ super.paintComponent(g); Graphics g2d = imageBox.getGraphics(); if(showWholeImage && wholeImage!=null){ g2d.drawImage(wholeImage,0,0,imageBox); } else{ int x =0,y=0; for(int i=0;i<24;i++){ g2d.drawImage(images[i],x, y, null); } } }}难道不是每次选择图片后，调用repaint直接将图片绘制到imageBox上吗，为什么总是显示不了？
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应该没啥问题啊。jar包用的对不对？
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给楼主顶下
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不知道是不是你图片位置没有放对 我是随便说说的哈
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试了一下，换成JLabel好使。
JLabel lable = new JLabel();
lable.setIcon(new ImageIcon(wholeImage));