我会
MouseListener在您保存图片的组件中添加一个。
然后只需重写方法
mouseEntered(MouseEvent e)并
mouseExited(MouseEvent e)更改图像即可。
这是一个完整的工作示例：
public class JframeExample { public static void main(String[] args) throws MalformedURLException, IOException { final JButton j; BufferedImage imgOne = ImageIO.read(new URL("http://www.suptechnology.ma/entrepot/logocert/logocert-20130211115413.png")); BufferedImage imgTwo = ImageIO.read(new URL("http://market.milouz.com/data/icon53.png")); final ImageIcon imageIconOne = new ImageIcon(imgOne); final ImageIcon imageIconTwo = new ImageIcon(imgTwo); Jframe f = new Jframe("This is a test / Image on hover"); f.setSize(500, 500); Container content = f.getContentPane(); content.setLayout(new FlowLayout()); j = new JButton(imageIconOne); j.addMouseListener(new MouseListener() { @Override public void mouseReleased(MouseEvent arg0) {} @Override public void mousePressed(MouseEvent arg0) {} @Override public void mouseExited(MouseEvent arg0) { j.setIcon(imageIconOne); } @Override public void mouseEntered(MouseEvent arg0) { j.setIcon(imageIconTwo); } @Override public void mouseClicked(MouseEvent arg0) {} }); content.add(j); f.setVisible(true); }}
