音乐播放器

package cn.hncu.games;

import java.applet.Applet;
import java.applet.AudioClip;
import java.awt.Color;
import java.awt.Font;
import java.net.MalformedURLException;
import java.net.URL;
import java.awt.List;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class MusicPlayer extends JFrame{
private JLabel songNameLabel=null;//显示播放状态及歌曲名
private JButton btnLast = null;//上一首
private JButton btnPlay = null;//播放/停止
private JButton btnNext = null;//下一首
private JButton btnLoop = null;//循环

private List songList = null;
//歌曲文件名数组---String
String[] strSongNames={ "song1.wav","song2.wav","song3.wav","song4.wav","song5.wav","song6.wav" };
final String DIR="songs\";
//歌曲对象数组---AudioClip
AudioClip songs[];
AudioClip currentSong=null;
int index=0;

boolean isPlayOrStop = true;//播放状态(播放/停止),默认播放
boolean isLoop= false;//是否循环播放

public MusicPlayer() {
super("音乐播放器");
this.setBounds(300, 50, 310, 480);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setLayout(null);//空布局--绝对布局

//标签:我的音乐播放器/歌曲名
songNameLabel = new JLabel();
songNameLabel.setText("我的音乐播放器");
Font songNameFont = new Font("黑体",Font.ITALIC,18);
songNameLabel.setFont(songNameFont);
songNameLabel.setBounds(10, 10, 300, 40);//绝对布局时，由组件自己决定位置和大小
this.getContentPane().add(songNameLabel);

//四个播放功能键
//构造
btnLast = new JButton();
btnPlay = new JButton();
btnNext = new JButton();
btnLoop = new JButton();
//位置大小
btnLast.setBounds(10, 70, 50, 40);
btnPlay.setBounds(70, 70, 50, 40);
btnNext.setBounds(130, 70, 50, 40);
btnLoop.setBounds(190, 70, 50, 40);
//图片
btnLast.setIcon( new ImageIcon("images2\1.png") );
btnPlay.setIcon( new ImageIcon("images2\2.png") );
btnNext.setIcon( new ImageIcon("images2\3.png") );
btnLoop.setIcon( new ImageIcon("images2\4.png") );
//添加监听
MouseListener ml = new MouseListenerC();
btnLast.addMouseListener(ml);
btnPlay.addMouseListener(ml);
btnNext.addMouseListener(ml);
btnLoop.addMouseListener(ml);

//添加到界面
getContentPane().add(btnLast);
getContentPane().add(btnPlay);
getContentPane().add(btnNext);
getContentPane().add(btnLoop);

//歌曲播放列表
//列表上面的提示文字
JLabel listLabel = new JLabel("播放列表");
listLabel.setBounds(10, 120,100,30);
Font listLabelFont = new Font("宋体",Font.BOLD,15);
listLabel.setFont(listLabelFont);
getContentPane().add(listLabel);
//列表
songList = new List();
songList.setBounds(10, 150, 260, 260);
songList.setBackground(Color.CYAN);
//把歌曲名添加到List中
songs = new AudioClip[ strSongNames.length ];
for(int i=0;i<strSongNames.length;i++){
songList.add( strSongNames[i]);
songs[i] = loadSound(DIR+ strSongNames[i]);
}
getContentPane().add(songList);

//程序刚启动时，播放第一首歌曲
MusicRun mr = new MusicRun();
Thread t = new Thread(mr);
t.start();

setVisible(true);
}

private AudioClip loadSound(String filename) {
URL url = null;
try {
url = new URL("file:"+filename);
} catch (MalformedURLException e) {
e.printStackTrace();
}
return Applet.newAudioClip(url);
}
public static void main(String[] args) {
MusicPlayer mp = new MusicPlayer();
}

private class MusicRun implements Runnable{
@Override
public void run() {
currentSong = songs[index];
if(isLoop){
currentSong.loop();
}
if(isPlayOrStop){
currentSong.play();
}
btnPlay.setIcon(new ImageIcon("images2\5.png"));
}
}

private class MouseListenerC implements MouseListener{
@Override
public void mouseClicked(MouseEvent e) {
currentSong.stop();

if(e.getSource()==btnPlay){
isPlayOrStop = !isPlayOrStop;
}else if(e.getSource()==btnNext){
index++;
index = index % strSongNames.length;
isPlayOrStop = true;
} else if(e.getSource()==btnLast){
index--;
if(index<0){
index = index+strSongNames.length;
}
isPlayOrStop = true;
} else if(e.getSource()==btnLoop){
isLoop= !isLoop;
}

if(isPlayOrStop){
MusicRun mr = new MusicRun();
Thread t = new Thread(mr);
t.start();
}else{
btnPlay.setIcon(new ImageIcon("images2\2.png"));
}
}
@Override
public void mousePressed(MouseEvent e) {
}
@Override
public void mouseReleased(MouseEvent e) {
}
@Override
public void mouseEntered(MouseEvent e) {
}
@Override
public void mouseExited(MouseEvent e) {
}
}
}