使用java怎么制作一个音乐播放器功能

package baidu;import java.awt.*;import java.awt.event.*;import java.io.*;import java.util.*;import javax.swing.*;import javax.media.bean.playerbean.*; //这个包要用到JMFpublic class MP3 extends JFrame implements Runnable {public JLabel shijian;private JSlider sldDiameter;public MediaPlayer soumd1;public JButton playSound, loopSound, stopsound;public JButton tjian, shanc, baocun, duqu;public JPanel jp1, jp2, jp3, jp4;public JList jl;int zongmiao=0;public Vector vector, mingcheng;boolean fo = false, geshi = false;JLabel jl1, jl2, sj1, sj2;JTextField jt1, jt2;JButton queding, xiugai;int zong = 0;int a = 0, b = 0, you = 1,mm=0;int fenzhong, miaozhong;public MP3() { super("java简单音乐播放器--严楷"); soumd1 = new MediaPlayer(); Container c = getContentPane(); c.setLayout(new FlowLayout()); mingcheng = new Vector(); jp1 = new JPanel(); shijian = new JLabel(); jp1.add(shijian); c.add(jp1); playSound = new JButton("开始播放"); loopSound = new JButton("循环播放"); stopsound = new JButton("停止播放"); jp2 = new JPanel(); jp2.add(playSound); jp2.add(loopSound); jp2.add(stopsound); c.add(jp2); jp4 = new JPanel(); sj1 = new JLabel(); sj2 = new JLabel(); sldDiameter = new JSlider(SwingConstants.HORIZONTAL, 0, 100, 0); sldDiameter.setMajorTickSpacing(1); sldDiameter.setPaintTicks(true); jp4.add(sj1); jp4.add(sldDiameter); jp4.add(sj2); c.add(jp4); vector = new Vector(); jl = new JList(mingcheng); jl.setVisibleRowCount(5); jl.setFixedCellHeight(40); jl.setFixedCellWidth(265); jl.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); c.add(new JScrollPane(jl)); tjian = new JButton("添加"); shanc = new JButton("删除"); duqu = new JButton("读取"); baocun = new JButton("保存"); jp3 = new JPanel(); jp3.add(tjian); jp3.add(shanc); jp3.add(baocun); jp3.add(duqu); c.add(jp3); try { String s =" C:/Users/Administrator/Music/卓依婷 - 萍聚.mp3"; ObjectInputStream input = new ObjectInputStream(  new FileInputStream(s)); lujin a1 = (lujin) input.readObject(); mingcheng = a1.b; vector = a1.a; jl.setListData(mingcheng); } catch (Exception e) { System.out.println("c盘没有保存音乐文件"); //e.printStackTrace(); } baocun.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { JFileChooser fileChooser = new JFileChooser(); // 实例化文件选择器 fileChooser  .setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); // 设置文件选择模式,此处为文件和目录均可 if (fileChooser.showSaveDialog(MP3.this) == JFileChooser.APPROVE_OPTION) { // 弹出文件选择器,并判断是否点击了打开按钮  String fileName = fileChooser.getSelectedFile()  .getAbsolutePath(); // 得到选择文件或目录的绝对路径  mmm(vector, mingcheng, fileName); } } }); duqu.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { JFileChooser fileChooser = new JFileChooser(); // 实例化文件选择器 fileChooser  .setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); // 设置文件选择模式,此处为文件和目录均可 if (fileChooser.showOpenDialog(MP3.this) == JFileChooser.APPROVE_OPTION) { // 弹出文件选择器,并判断是否点击了打开按钮  String fileName = fileChooser.getSelectedFile()  .getAbsolutePath(); // 得到选择文件或目录的绝对路径  try {  ObjectInputStream input = new ObjectInputStream(  new FileInputStream(fileName));  lujin a1 = (lujin) input.readObject();  mingcheng = a1.b;  vector = a1.a;  jl.setListData(mingcheng);  } catch (Exception e) {  e.printStackTrace();  } } } }); playSound.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (jl.getSelectedIndex() >= 0) {  String yy = (String) vector.get(jl.getSelectedIndex());  File ff = new File(yy);  if (ff.exists()) {  if (yy.matches("[\\S\\s]*.mp3")|| yy.matches("[\\S\\s]*.MP3")) {  if (soumd1 != null) {  a = 0;  b = 0;  you = 0;  soumd1.stop();  }   soumd1.setMediaLocation("file:/" + yy);  fo = true;  soumd1.start();  geshi=true;  try {  Thread.sleep(500);  } catch (InterruptedException eee) {  }  zongmiao=(int)soumd1.getDuration().getSeconds();  if(zongmiao>10000)  {  try {   Thread.sleep(500);  } catch (InterruptedException ew) {  }  zongmiao=(int)soumd1.getDuration().getSeconds();  }  zongmiao=(int)soumd1.getDuration().getSeconds();  String aa=fen(zongmiao);   sj2.setText(aa);  } else  JOptionPane.showMessageDialog(null,   "播放文件格式的有错,无法播放 建议删除");  } else  JOptionPane.showMessageDialog(null,  "此歌曲文件已经不存在,建议删除"); } else  JOptionPane.showMessageDialog(null, "请选择音乐文件"); } }); loopSound.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (jl.getSelectedIndex() >= 0) {  String yy = (String) vector.get(jl.getSelectedIndex());  File ff = new File(yy);  if (ff.exists()) {  if (yy.matches("[\\S\\s]*.mp3")|| yy.matches("[\\S\\s]*.MP3")) {  if (soumd1 != null) {  a = 0;  b = 0;  you = 0;  soumd1.stop();  }   soumd1.setMediaLocation("file:/" + yy);  fo = true;  soumd1.start();  geshi=true;  try {  Thread.sleep(500);  } catch (InterruptedException we) {  }  zongmiao=(int)soumd1.getDuration().getSeconds();  if(zongmiao>10000)  {  try {   Thread.sleep(500);  } catch (InterruptedException we) {  }  zongmiao=(int)soumd1.getDuration().getSeconds();  }  zongmiao=(int)soumd1.getDuration().getSeconds();  String aa=fen(zongmiao);   sj2.setText(aa);  } else  JOptionPane.showMessageDialog(null,   "播放文件格式的有错,无法播放 建议删除");  } else  JOptionPane.showMessageDialog(null,  "此歌曲文件已经不存在,建议删除"); } else  JOptionPane.showMessageDialog(null, "请选择音乐文件"); } }); stopsound.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { a = 0; b = 0; you = 0; mm=0; geshi=false; fo = false; sldDiameter.setMaximum(100); sldDiameter.setValue(0); sj1.setText(null); sj2.setText(null); if (jl.getSelectedIndex() >= 0)  soumd1.stop(); } }); tjian.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { JFileChooser fileChooser = new JFileChooser(); // 实例化文件选择器 fileChooser  .setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); // 设置文件选择模式,此处为文件和目录均可 fileChooser.setCurrentDirectory(new File(".")); // 设置文件选择器当前目录 fileChooser  .setFileFilter(new javax.swing.filechooser.FileFilter() {  public boolean accept(File file) { // 可接受的文件类型  String name = file.getName().toLowerCase();  return name.endsWith(".mp3")   || file.isDirectory();  }  public String getDescription() { // 文件描述  return "音乐文件(*.mp3)";  }  }); if (fileChooser.showOpenDialog(MP3.this) == JFileChooser.APPROVE_OPTION) { // 弹出文件选择器,并判断是否点击了打开按钮  String fileName = fileChooser.getSelectedFile()  .getAbsolutePath(); // 得到选择文件或目录的绝对路径  vector.add(fileName);  StringBuffer buffer = daoxu(fileName);  mingcheng.add(buffer); } } }); shanc.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { if (jl.getSelectedIndex() >= 0) {  mingcheng.removeElementAt(jl.getSelectedIndex());  vector.removeElementAt(jl.getSelectedIndex());  jl.setListData(mingcheng); } } }); jl.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent event) { if (event.getClickCount() == 2) {  if (jl.getSelectedIndex() >= 0) {  String yy = (String) vector.get(jl.getSelectedIndex());  File ff = new File(yy);  if (ff.exists()) {  if (yy.matches("[\\S\\s]*.mp3")|| yy.matches("[\\S\\s]*.MP3")) {  if (soumd1 != null) {   a = 0;   b = 0;   you = 0;   soumd1.stop();  }   soumd1.setMediaLocation("file:/" + yy);  fo = true;  soumd1.start();  geshi=true;  try {   Thread.sleep(500);  } catch (InterruptedException e) {  }  zongmiao=(int)soumd1.getDuration().getSeconds();  if(zongmiao>10000)  {   try {   Thread.sleep(500);   } catch (InterruptedException e) {   }  zongmiao=(int)soumd1.getDuration().getSeconds();  }  String aa=fen(zongmiao);   sj2.setText(aa);  } else  JOptionPane.showMessageDialog(null,   "播放文件格式的有错,无法播放 建议删除");  } else  JOptionPane.showMessageDialog(null,   "此歌曲文件已经不存在,建议删除");  } } if (event.isMetaDown()) {  if (jl.getSelectedIndex() >= 0) {  int a = jl.getSelectedIndex();  xiugai x = new xiugai();  jt1.setText(mingcheng.get(jl.getSelectedIndex()) + "");  jt2.setText(vector.get(jl.getSelectedIndex()) + "");  } } } }); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { String s = "c:\\music.txt"; mmm(vector, mingcheng, s); System.exit(0);  } }); setSize(300, 400); setVisible(true);}public void run() { while (true) { Date now = new Date(); //shijian.setText("当前时间: " + now.getYear()+"年"+now.getMonth()+"月"+now.getDate()+"日"+now.getTime()); shijian.setText("当前时间："+(new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(new Date())+" 严楷"); try { Thread.sleep(1000); } catch (InterruptedException e) { } if(geshi){ you=(int)soumd1.getMediaTime().getSeconds(); mm =you%60;  if(you!=0) if(you%60==0) {  b++; }  sj1.setText(b+":"+mm); sldDiameter.setMaximum(zongmiao); if(you!=zongmiao)  sldDiameter.setValue(you); else {  sldDiameter.setValue(0); mm=0;  b=0; } } }}public StringBuffer daoxu(String fileName) { String mc = ""; for (int i = fileName.length(); i >= 1; i--) { if (fileName.charAt(i - 1) == '\\') break; mc += fileName.charAt(i - 1); } StringBuffer buffer = new StringBuffer(mc); StringBuffer mm = buffer.reverse(); return mm;}public void mmm(Vector vector, Vector mingcheng, String lujin) { lujin a = new lujin(vector, mingcheng); try { ObjectOutputStream output = new ObjectOutputStream(new FileOutputStream(lujin)); output.writeObject(a); output.flush(); output.close(); } catch (Exception e) { }}public String fen(int yy) { fenzhong = (int) yy / 60; miaozhong = (int) yy % 60; String sss = fenzhong + ":" + miaozhong; return sss;}public static void main(String agrs[]) { MP3 s = new MP3(); Thread t1 = new Thread(s); t1.start(); s.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}class xiugai extends JFrame { public xiugai() { jl1 = new JLabel("文件名"); jt1 = new JTextField(20); jl2 = new JLabel("文件路径"); jt2 = new JTextField(20); xiugai = new JButton("修改"); Container c = getContentPane(); c.setLayout(new GridLayout(3, 1)); JPanel j1 = new JPanel(); JPanel j2 = new JPanel(); JPanel j3 = new JPanel(); j1.add(jl1); j1.add(jt1); j2.add(jl2); j2.add(jt2); j3.add(xiugai); c.add(j1); c.add(j2); c.add(j3); xiugai.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) {  mingcheng.setElementAt(jt1.getText(), jl.getSelectedIndex());  vector.setElementAt(jt2.getText(), jl.getSelectedIndex());  jl.setListData(mingcheng);  dispose(); } }); setSize(300, 120); setVisible(true); }}}class lujin implements Serializable {Vector a = new Vector();Vector b = new Vector();public lujin(Vector vector, Vector mingcheng) { a = vector; b = mingcheng;}}