java怎么在JFrame中显示动态图片？

试了一下，从网上找了个GIF

可以用啊

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import java.awt.Graphics

import javax.swing.ImageIcon

import javax.swing.JFrame

import javax.swing.JPanel

public class ImageApp extends JFrame {

public ImageApp() {

setDefaultCloseOperation(EXIT_ON_CLOSE)

setLocationRelativeTo(null)

setSize(400, 300)

setResizable(false)

getContentPane().setLayout(null)

JPanel panel = new ImagePanel()

panel.setBounds(0, 0, 400, 300)

getContentPane().add(panel)

setVisible(true)

}

public static void main(String[] args) {

new ImageApp()

}

class 简坦ImagePanel 历毕extends JPanel {

public void paint(Graphics g) {

super.paint(g)

// ImageIcon icon = new ImageIcon("D:\\1.jpg")

ImageIcon icon = new ImageIcon("D:\\14405937jqhjsppeninjf9.gif")

g.drawImage(icon.getImage(), 0, 0, 400, 300, 拦烂桐this)

}

}

}

import java.awt.*

import java.awt.event.*

import java.io.*

import javax.swing.*

public class ImageViewer

{

public static void main(String[] args)

{

JFrame frame = new ImageViewerFrame()

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)

frame.show()

}

}

class ImageViewerFrame extends JFrame

{

public ImageViewerFrame()

{

setTitle("ImageViewer")

setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT)

label = new JLabel()

Container contentPane = getContentPane()

contentPane.add(label)

chooser = new JFileChooser()

chooser.setCurrentDirectory(new File("."))

JMenuBar menuBar = new JMenuBar()

setJMenuBar(menuBar)

JMenu menu = new JMenu("File")

menuBar.add(menu)

JMenuItem openItem = new JMenuItem("Open")

menu.add(openItem)

openItem.addActionListener(new

ActionListener()

{

public void actionPerformed(ActionEvent evt)

{

int r = chooser.showOpenDialog(null)

if(r == JFileChooser.APPROVE_OPTION)

{

String name

= chooser.getSelectedFile().getPath()

label.setIcon(new ImageIcon(name))

}

}

})

JMenuItem exitItem = new JMenuItem("Exit")

menu.add(exitItem)

exitItem.addActionListener(new

ActionListener()

{

public void actionPerformed(ActionEvent event)

{

System.exit(0)

}

})

}

private JLabel label

private JFileChooser chooser

private static final int DEFAULT_WIDTH = 300

private static final int DEFAULT_HEIGHT = 400

}

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