Java实现的简单音乐播放器功能示例

import java.applet.AudioClip;
import java.awt.*;
import java.net.*;
import java.awt.event.*;
import java.io.*;
import java.applet.*;
import javax.swing.*;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
public class MusicPlayer extends JDialog implements Runnable,ItemListener,ActionListener{
  /**
   *
   */
  private static final long serialVersionUID = 1L;
  Thread thread;
  JComboBox<Serializable> choiceMusic;
  AudioClip clip;
  JButton buttonPlay,buttonLoop,buttonStop;
  String str;
  MusicPlayer(){
    thread=new Thread(this);
    choiceMusic=new JComboBox();
    choiceMusic.addItem("选择音频文件");
    choiceMusic.addItem("src/1.wav");
    choiceMusic.addItem("‪2.wav");
    choiceMusic.addItem("3.wav");
    choiceMusic.addItemListener(this);
    buttonPlay=new JButton("播放");
    buttonLoop=new JButton("循环");
    buttonStop=new JButton("停止");
    buttonPlay.addActionListener(this);
    buttonLoop.addActionListener(this);
    buttonStop.addActionListener(this);
    setLayout(new FlowLayout());
    add(choiceMusic);
    add(buttonPlay);
    add(buttonLoop);
    add(buttonStop);
    setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    setSize(350,80);
  }
  @Override
  public void actionPerformed(ActionEvent e) {
    if(e.getSource()==buttonPlay)
      clip.play();
    else if(e.getSource()==buttonLoop)
      clip.loop();
    else if(e.getSource()==buttonStop)
      clip.stop();
  }
  @Override
  public void itemStateChanged(ItemEvent arg0) {
    str=choiceMusic.getSelectedItem().toString();
    if(!(thread.isAlive())){
      thread=new Thread(this);
    }
    try{thread.start();
    }
    catch(Exception ee){}
  }
  @Override
  public void run() {
    try {
    File file=new File(str);
    URI uri=file.toURI();
    URL url=uri.toURL();
    clip=Applet.newAudioClip(url);
    } catch (MalformedURLException e) {
    }
  }
  public static void main(String[] args) {
    MusicPlayer musicplayer=new MusicPlayer();
    musicplayer.setVisible(true);
  }
}