音乐播放器

package 音乐播放器;


import java.applet.Applet;
import java.applet.AudioClip;
import java.awt.Color;
import java.awt.Font;
import java.awt.List;
import java.awt.MenuBar;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Vector;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;


import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.filechooser.FileNameExtensionFilter;






public class MusicPlayer extends JFrame {
JLabel songNameLabel = null;// 用标签显示状态
// 四个播放功能键按钮
JButton btnLast = null; // 上一曲
JButton btnPlay = null; // 播放/停止
JButton btnNext = null; // 下一曲
JButton btnLoop = null; // 循环
JButton btnAdd = null;// 添加


JLabel listLabel = null;// 播放列表标签


List songsList;// 列表


Vector<AudioClip> songs;// 列表中的歌曲


AudioClip currentSongs;// 当前歌曲
// 此处用并发容器，不然会报错误
HashSet<File> strSongsName = new HashSet<File>();


Record record = new Record();

String strCurrentSongName; // 当前选定播放歌曲的名称
int index = 0; // 记录当前选定播放的歌曲的序号(当前播放的那首歌曲),默认第一首
boolean isPlayOrStop = true;// 记录播放状态(播放/停止)，默认为播放
boolean isLoop = false; // 记录循环状态，默认为不循环播放


Thread playerThread; // 音频播放线程
public MusicPlayer() {
super("音乐播放器");
this.setLayout(null);
this.setBounds(300, 50, 330, 500);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);



        //添加文件
JMenuBar menuBar=new JMenuBar();
this.setJMenuBar(menuBar);
JMenu menu=new JMenu("文件");
menuBar.add(menu);
JMenuItem menuAdd=new JMenuItem("添加文件");
menu.add(menuAdd);
menuAdd.addActionListener(new ActionListener() {


public void actionPerformed(ActionEvent e) {
JFileChooser jc=new JFileChooser();
jc.showOpenDialog(MusicPlayer.this);

}
});
// 标签：我的音乐播放器/歌曲名
songNameLabel = new JLabel();
Font songNameFont = new Font("斜体", Font.ITALIC, 18);
songNameLabel.setFont(songNameFont);
songNameLabel.setText("我的音乐播放器");
songNameLabel.setBounds(10, 10, 300, 40);
this.getContentPane().add(songNameLabel);


// 四个播放功能键按钮
// 构造四个按钮
btnLast = new JButton();
btnPlay = new JButton();
btnNext = new JButton();
btnLoop = new JButton();
// 添加歌曲
btnAdd = new JButton();


// 设置位置和大小
btnLast.setBounds(10, 70, 50, 40);
btnPlay.setBounds(70, 70, 50, 40);
btnNext.setBounds(130, 70, 50, 40);
btnLoop.setBounds(190, 70, 50, 40);
btnAdd.setBounds(250, 70, 50, 40);


// 设置图片
btnLast.setIcon(new ImageIcon("./Image//1.png"));
btnPlay.setIcon(new ImageIcon("./Image//2.png"));
btnNext.setIcon(new ImageIcon("./Image//3.png"));
btnLoop.setIcon(new ImageIcon("./Image//4.png"));
btnAdd.setIcon(new ImageIcon("./Image//添加.png"));

// 给按钮添加监听
MouseListener mlc = new MouseListenerC();// 鼠标监听器对象
btnLast.addMouseListener(mlc);
btnPlay.addMouseListener(mlc);
btnNext.addMouseListener(mlc);
btnLoop.addMouseListener(mlc);
btnAdd.addMouseListener(mlc);
// 添加到框架
getContentPane().add(btnLast);
getContentPane().add(btnPlay);
getContentPane().add(btnNext);
getContentPane().add(btnLoop);
getContentPane().add(btnAdd);


// 以下这段设置歌曲播放列表
// 设置播放列表的标签
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);
this.getContentPane().add(listLabel);


// 设置播放列表控件
songsList = new List();
songsList.setFont(new Font("斜体", Font.ITALIC, 20));
songsList.setBounds(10, 150, 250, 300);
songsList.setBackground(Color.cyan);
songs = new Vector<AudioClip>();


// 添加歌曲线程运行
// add();


// 读取歌曲列表
try {
record.read();
Iterator<File> it=strSongsName.iterator();
while(it.hasNext()){
File file=it.next();
add(file.getAbsolutePath());
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
songsList.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
currentSongs.stop();
index = songsList.getSelectedIndex();
playerThread = new Thread(new MusicRun());
playerThread.start();
}
});
playerThread = new Thread(new MusicRun());
playerThread.start();
this.getContentPane().add(songsList);
this.setVisible(true);


}
class MusicRun implements Runnable{


public void run() {
currentSongs = songs.get(index);
if (isLoop) {
currentSongs.loop();
}
strCurrentSongName =songsList.getItem(index);
songNameLabel.setText("正在播放:" + strCurrentSongName);
songsList.select(index);// 在播放列表中选定当前播放歌曲条目
btnPlay.setIcon(new ImageIcon("./Image//5.png"));// 切换成“停止”图标
if (isPlayOrStop) {
currentSongs.play();
}
}

}


private void add(String str) {
// 把歌曲文件名加载进来
songsList.add(new File(str).getName());
songs.add(loadSound(str));

}


// 记录
class Record {
private FileWriter fw;
private FileReader fr;
private File file;
private BufferedReader bufr;
private BufferedWriter bufw;


public Record() {
try {
file = new File("H://Music.txt");
if (!file.exists()) {
file.createNewFile();
}
} catch (IOException e) {
e.printStackTrace();
}
}


// 存储
public void Save(String str) {
try {


fw = new FileWriter(file, true);
bufw = new BufferedWriter(fw);
bufw.write(str + "\r\n");
} catch (IOException e) {


} finally {
if (bufw != null) {
try {
bufw.close();
} catch (IOException e) {


}
}
if (fw != null) {
try {
fw.close();
} catch (IOException e) {


}
}


}
}


// 读取文件信息
public void read() throws FileNotFoundException {
try {
fr = new FileReader(file);
bufr = new BufferedReader(fr);
String str;
while ((str = bufr.readLine()) != null) {
strSongsName.add(new File(str));
}
} catch (IOException e) {
e.printStackTrace();
}


}
}


class MouseListenerC extends MouseAdapter {


@Override
public void mouseClicked(MouseEvent e) {
JButton btn = (JButton) e.getSource();
if (btn == btnAdd) {
JFileChooser chooser = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter(
"*.wav", "wav");
chooser.setFileFilter(filter);
int returnVal = chooser.showOpenDialog(MusicPlayer.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
boolean flag = strSongsName.add(chooser.getSelectedFile());
// 添加歌曲线程运行
if (flag) {
record.Save(chooser.getSelectedFile().getAbsolutePath());
add(chooser.getSelectedFile().getAbsolutePath());
}else{
JOptionPane.showMessageDialog(null,"已存在相同歌曲  添加失败");
}
}


}
currentSongs.stop();
if (btn == btnPlay) {
isPlayOrStop = !isPlayOrStop;
} else if (btn == btnLast) {
index--;
if (index < 0) {
index = strSongsName.size()- 1;
}
isPlayOrStop = true;
isLoop = false;
} else if (btn == btnNext) {
index++;
index = index % strSongsName.size();
isPlayOrStop = true;
isLoop = false;
} else if (btn == btnLoop) {
isLoop = !isLoop;
}


if (isPlayOrStop) {
playerThread = new Thread(new MusicRun());
playerThread.run();
} else {
songNameLabel.setText("停止播放:" + strCurrentSongName);
btnPlay.setIcon(new ImageIcon("./Image//2.png"));
}


}


}


public static void main(String[] args) {
MusicPlayer mp = new MusicPlayer();
}


public AudioClip loadSound(String filename) {
URL url = null;
try {
url = new URL("file:" + filename);
} catch (MalformedURLException e) {
e.printStackTrace();
}
return Applet.newAudioClip(url);
}
}