JMF这个多媒体开发框架太牛了，简单的几句代码就能实现一个视频播放器的开发，厉害，就是支持的格式少了一些，没关系，这个视频播放器可以播放mpg，avi,fvl等等，想播放其他的请开发自己的插件，下面将代码贴上去。

import java.awt.Button;
import java.awt.Choice;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.net.URL;
import javax.media.Manager;
import javax.media.Player;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
public class MP3 {
	static final String PATH = "D:/Project/NewDemo//Cityscape/"; // 音樂文件的位置
	String url;// 要播放的地址
	Player player;
	public MP3() {
	}
	public void setUrl(String url) {
		this.url = url;
	}
	public void play() {
		try {
			player = Manager.createPlayer(new URL("file:/" + url));
			player.realize();
			player.start();
		} catch (Exception e) {
			System.out.println("Cannot find the" + url);
		}
	}
	public void stop() {
		player.stop();
		player.deallocate();
	}
	public static void main(String[] args) {
		JFrame frame = new JFrame();
		Panel panel = new Panel();
		panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
		Choice choice = new Choice();
		File file = new File(PATH);
		String[] files = file.list();
		for (String string : files) {
			if (string.indexOf(".wav") != -1 || string.indexOf(".mp3") != -1)
				choice.add(string);
		}
		panel.add(choice);
		Button play = new Button("Play");
		Button stop = new Button("Stop");
		MP3 mp3 = new MP3();
		ActionListener listener = new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				if (e.getSource() == play) {
					String url = PATH + choice.getSelectedItem();
					mp3.setUrl(url);
					mp3.play();
				} else if (e.getSource() == stop) {
					mp3.stop();
				}
			}
		};
		play.addActionListener(listener);
		stop.addActionListener(listener);
		panel.add(play);
		panel.add(stop);
		frame.add(panel);
		frame.pack();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setLocationRelativeTo(null);
		frame.setVisible(true);
	}
}

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