java对话框选择图片,并显示到lable上

package com.xudeyu.frame;

import java.awt.Color;

import java.awt.Cursor;

import java.awt.Dimension;

import java.awt.EventQueue;

import java.awt.Image;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import java.io.StringWriter;

import javax.swing.Icon;

import javax.swing.ImageIcon;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

public class ImageView

{

public static void main(String[] args)

{

EventQueue.invokeLater(new Runnable()

{

@Override

public void run()

{

// 

ImageViewFrame imageframe = new ImageViewFrame();

imageframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

imageframe.setVisible(true);

}

});

}

}

 final class ImageViewFrame extendsJFrame

{

private JLabel label;

private JFileChooser chooser;

public ImageViewFrame()

{

setTitle("圖片浏览");

setSize(800, 600);

// user label to display image

label = new JLabel("图片浏览",0);

add(label);

// set up the file chooser

chooser = new JFileChooser();

chooser.setCurrentDirectory(new File("C:\"));

// set up the menu bar

JMenuBar menubar = new JMenuBar();

// add(menubar);

setJMenuBar(menubar);

// set up the menu content in bar

JMenu menu = new JMenu("File");

menubar.add(menu);

JMenu menu2 = new JMenu("Edit");

menubar.add(menu2);

// add comtent in submenu

JMenuItem openItem = new JMenuItem("Open");

menu.add(openItem);

openItem.addActionListener(new ActionListener()

{

@Override

public void actionPerformed(ActionEvent e)

{

if (chooser.showOpenDialog(null) ==JFileChooser.APPROVE_OPTION)

{

String name = chooser.getSelectedFile().getPath();

label.setIcon(new ImageIcon(name));

}

}

});

}

}