简单的MP3播放器

import java.awt.Button;
import java.awt.FileDialog;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.media.MediaLocator;
import javax.media.bean.playerbean.MediaPlayer;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Mp3player extends JPanel implements ActionListener{
	Button b1,b2,b3;
	MediaPlayer player;
	static JFrame jf;
	String dir,fstr,fName;
	FileDialog fd;
	static Mp3player mp3;
	
	public static void main(String[] args) {
		jf = new JFrame();
		mp3 = new Mp3player();
		jf.add(mp3);
		mp3.init();
		
		jf.setSize(150,100);
		jf.setLocationRelativeTo(null);
		jf.setResizable(false);
		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jf.setVisible(true);
		
	}
	public void init(){
		setLayout(new FlowLayout());
		
		b1 = new Button("播放");
		b2 = new Button("停止");
		b3 = new Button("打开MP3");
		
		add(b1);
		add(b2);
		add(b3);
		
		b1.addActionListener(this);
		b2.addActionListener(this);
		b3.addActionListener(this);
		
	}
	
	public void openMp3(){
		
		dir = fd.getDirectory();
		fName = fd.getFile();
		fstr = dir + fName;
		System.out.println("fstr:"+fstr);
		if(player == null){
			player = new MediaPlayer();
		}else{
			player.stop();
			player.deallocate();
		}
		player.setMediaLocator(new MediaLocator("file:///"+fstr));
	}
	
	@Override
	public void actionPerformed(ActionEvent e) {
		if(e.getSource() == b1){
			player.start();
		}else if(e.getSource() == b2){
			player.stop();
		}else if(e.getSource() == b3){
			fd = new FileDialog(jf,"选择MP3", FileDialog.LOAD);
			fd.setVisible(true);
			openMp3();
		}
	}
	
}

1,打开播放器

2，点击打开MP3，点击这窗口的打开按钮

3,点击播放（1图）