java音乐播放器实现代码

package com.service;
 
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Random;
 
import javax.sound.sampled.*;
import javax.swing.JSlider;
import javax.swing.JTable;

import com.list.MusicList;
import com.list.ThreadList;
import com.list.ViewList;
import com.model.Model;
import com.model.Music;
import com.view.View;
 


/*"duration" 
"author" 
"title" 
"copyright" 
"date" 
"comment"*/
public class Player extends Thread{
 


 private Player p;
 private long time = 0;
 
 Object lock = new Object();//一个空的对象,没什么意义
 
 private boolean paused = false;// 暂停 继续
 
 
 public boolean isPaused() {
 return paused;
 }

 public void setPaused(boolean paused) {
 this.paused = paused;
 }
 
 private JSlider jSliderPlayProgress;//播放进度条


 private boolean over = false;//开始 结束
 
 //是否自动播放下一曲
 private boolean isNext=true;
 
 
 private Music music;//音乐
 
 
 AudioInputStream din = null;
 SourceDataLine line=null;
 
 private FloatControl volume = null;

 private JSlider jSliderVolume; 
 
 public JSlider getjSliderVolume() {
 return jSliderVolume;
 }

 public void setjSliderVolume(JSlider jSliderVolume) {
 this.jSliderVolume = jSliderVolume;
 
 
 }
 public Player(JSlider jSliderVolume,JSlider jSliderPlayProgress) {
 super();
 this.jSliderVolume = jSliderVolume;
 this.jSliderPlayProgress=jSliderPlayProgress;
 }


 public Music getMusic() {
 return music;
 }

 public void setMusic(Music music) {
 this.music = music;
 }
 
 public FloatControl getVolume(){
  return volume;
 }

 
 
 //播放音乐
 public void run(){
 
 AudioInputStream in=null;
 
 try {
  
  File file = new File(music.getPath());
 
  //播放不了的歌曲，直接下一首,并且在音乐列表中删除
  try {
   in = AudioSystem.getAudioInputStream(file);
  } catch (Exception e) {
  //删除有点小问题
  MusicList.getList().remove(music.getId());
  
  ViewList.getList().get(0).getJt().setModel(new Model());
  
  
  nextmusic();
  }
  
  AudioFormat baseFormat = in.getFormat();
  AudioFormat decodedFormat = new AudioFormat(
   AudioFormat.Encoding.PCM_SIGNED,
   baseFormat.getSampleRate(), 16, baseFormat.getChannels(),
   baseFormat.getChannels() * 2, baseFormat.getSampleRate(),
   false);
  if(baseFormat.getEncoding()==AudioFormat.Encoding.PCM_UNSIGNED || baseFormat.getEncoding()==AudioFormat.Encoding.ULAW ||
   baseFormat.getEncoding()==AudioFormat.Encoding.ALAW || baseFormat.getEncoding()==AudioFormat.Encoding.PCM_SIGNED){
    time=(file.length()*8000000)/((int)(decodedFormat.getSampleRate()*baseFormat.getSampleSizeInBits()));
  }else{
   int bitrate=0;
   if(baseFormat.properties().get("bitrate")!=null){
    //取得播放速度(单位位每秒)
    bitrate=(int)((Integer)(baseFormat.properties().get("bitrate")));
    if(bitrate!=0)
    time=(file.length()*8000000)/bitrate;
   }
   
  }
  
  
  din = AudioSystem.getAudioInputStream(decodedFormat, in);
  DataLine.Info info = new DataLine.Info(SourceDataLine.class, decodedFormat);
  line = (SourceDataLine) AudioSystem.getLine(info);
  line.open();
  setVolume();
  jSliderPlayProgress.setMaximum((int)time);
  jSliderPlayProgress.setValue(0);
  if(line!=null){
  line.open(decodedFormat);
  byte[] data = new byte[4096];
  int nBytesRead;
  
  synchronized (lock) {
  while ((nBytesRead = din.read(data, 0, data.length)) != -1) {
   while (paused) {
   if(line.isRunning()) {
    line.stop();
    System.out.println("暂停");
   }
   try {
    lock.wait();
    System.out.println("等待");
   }
   catch(InterruptedException e) {
   }
   }
   if(!line.isRunning()&&!over) {
   System.out.println("开始播放");
   line.start();
   
   }
   
   if (over&&line.isRunning()) {
   System.out.println("停止播放");
   jSliderPlayProgress.setValue(0);
   isNext=false;
   line.drain();
   line.stop();
   line.close();
   }
   
   jSliderPlayProgress.setValue((int)line.getMicrosecondPosition());
   line.write(data, 0, nBytesRead);
  }
  
 //根据播放模式选择下一首歌
  nextmusic();
  }
  
 }
 
 }
 catch(Exception e) {
  e.printStackTrace();
 }
 finally {
  if(din != null) {
  try { din.close(); } catch(IOException e) { }
  }
 }
 }
 
 //设置播放器滚动条
 public void setVolume()
 {
 if(line!=null)
 {
  if(line.isControlSupported(FloatControl.Type.MASTER_GAIN))
  {
  jSliderVolume.setEnabled(true);
  volume= (FloatControl)line.getControl( FloatControl.Type.MASTER_GAIN );
  jSliderVolume.setMinimum((int)volume.getMinimum());
  jSliderVolume.setMaximum((int)volume.getMaximum());
  //jSliderVolume.setValue((int)(volume.getMinimum()+(4*(volume.getMaximum()-volume.getMinimum()))/5));
  volume.setValue((float)(volume.getMinimum()+(4*(volume.getMaximum()-volume.getMinimum()))/5));
  }
 }
 else
 {
  volume=null;
  jSliderVolume.setEnabled(false);
 } 
 }
 private void nextmusic() {
 String mode=Setting.getMode();
 if (isNext&&!mode.equals("one")) {//单曲播放就不执行
  int nextid=0;//将要播放的id
  int currentid=Integer.parseInt(this.music.getId());
  System.out.println(mode);
  if (mode.equals("default")&&(currentid==MusicList.getList().size()-1)){
  return;
  }
  
  if (mode.equals("rand")) {
   Random random = new Random();
   nextid=Math.abs(random.nextInt())%MusicList.getList().size();
  }else if (mode.equals("onecircle")) {
  nextid=currentid;
  }else if (mode.equals("default")&&!(currentid==MusicList.getList().size()-1)) {
   nextid=currentid+1;
  }else if (mode.equals("morecircle")) {
  
  nextid=(currentid==MusicList.getList().size()-1)?0:currentid+1;
  }
  JTable jTable=ViewList.getList().get(0).getJt();
  if(nextid==0){//第一个
  
  jTable.setRowSelectionInterval(0,0);
  
  }else {
   jTable.setRowSelectionInterval(nextid-1,nextid); 
  }
   this.stopplay();
   ThreadList.getList().clear();
   p=new Player(jSliderVolume,jSliderPlayProgress);
   p.setMusic(MusicList.getList().get(nextid));
   ThreadList.getList().add(p);
   p.start();
 }
 }
 


 //开始
 public void startplay(){
 over=false;
 }
 
 
 //停止
 
 public void stopplay(){
 over=true;
 }
 
 
 // 暂停
 public void userPressedPause() {
 paused = true;
 }
 
 //继续
 public void userPressedPlay() {
  synchronized(lock) {
   paused = false;
   lock.notifyAll();
 }

 }
 
 public void Pause(){
 if (paused) {
  synchronized(lock) {
   paused = false;
   lock.notifyAll();
   }
 }else{
  paused = true;
 }
 
 }
 

 
 
}

package com.view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
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.JPanel;
import javax.swing.JRootPane;
import javax.swing.JScrollPane;
import javax.swing.JSlider;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingConstants;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.table.TableCellRenderer;



import com.list.MusicList;
import com.list.ThreadList;
import com.list.ViewList;
import com.model.Model;
import com.model.Music;
import com.service.Player;
import com.service.Setting;
import com.util.DirInput;
import com.util.FileInput;
import com.util.FileList;
import com.util.List_File;


public class View extends JFrame implements MouseListener,ActionListener,WindowListener {
 
 private JButton stop, open,del,next,pre;
 private Player p;
 private JPanel[] jPanels;
 private MusicList list;
 //private Long clickTime=0l;
 private JScrollPane jsp;
 private JTable jt;
 private JRootPane j;
 private Model model;
 private JSlider jSliderVolume;
 private JSlider jSliderPlayProgress;
 private FileInput fileinput;
 private DirInput dirInput;
 private JMenuBar jb;
 private JMenu jm;
 private JMenuItem fm,dm;
 private JComboBox jBox;
 
 
 public View(){
 System.out.println(ViewList.getList().size());
 if (ViewList.getList().size()==0) {
  Open();
 }
 }

 
 
 private void Open() {
 
 //this.getRootPane().setWindowDecorationStyle(JRootPane.NONE);
 
 
 //this.setUndecorated(true);
 //菜单选项
 
 jb=new JMenuBar();
 jm=new JMenu("打开");
 
 fm=new JMenuItem("文件");
 
 dm=new JMenuItem("文件夹");
 
 fm.addActionListener(this);
 dm.addActionListener(this);
 jb.add(jm);
 
 jm.add(fm);
 jm.add(dm);
 
 
 
 //this.setJMenuBar(jb);
 
 
 
 JPanel p1=new JPanel();
 JPanel p2=new JPanel();
 JPanel p3=new JPanel();
 
 //增加菜单选项
 j=new JRootPane();
 
 j.setJMenuBar(jb);
 
 
 p2.add(j);
 
 
  open=new JButton("播放");
  stop=new JButton("停止");
  open.addMouseListener(this);
  stop.addMouseListener(this);
  pre=new JButton("上一首");
  next=new JButton("下一首");
  pre.addMouseListener(this);
  next.addMouseListener(this);
 p1.setLayout(new GridLayout(2,1));
 
 JPanel jPanel2=new JPanel();
 
 jPanel2.add(open);
 jPanel2.add(stop);
 jPanel2.add(pre);
 jPanel2.add(next);
 
 p1.add(jPanel2);
 /*p1.add(open);
 p1.add(stop);
 p1.add(pre);
 p1.add(next);*/
 
 
 
 
 
 del=new JButton("删除");
 del.addMouseListener(this);
 
  jSliderPlayProgress = new JSlider(); //播放进度条
  jSliderPlayProgress.setValue(0);
  jSliderPlayProgress.setEnabled(false);
  jSliderPlayProgress.setPreferredSize(new Dimension(200, 20));
  
  
  p1.add(jSliderPlayProgress);
  
 
 jSliderVolume = new JSlider(); //音量进度条
 jSliderVolume.setValue(0);
  //jSliderPlayProgress.setEnabled(false);
 jSliderVolume.setPreferredSize(new Dimension(100, 20));//设置滚动条长度
  
  
  
 jSliderVolume.addChangeListener(new ChangeListener()
  {
  public void stateChanged(ChangeEvent evt) 
  {
   System.out.println(jSliderVolume.getValue());
   if (ThreadList.getList().size()!=0) {
   ThreadList.getList().get(0).getVolume().setValue((float)jSliderVolume.getValue());
   }
   
   
  }
  });
 String[] v={"顺序播放","随机播放","单曲循环","列表循环","单曲播放"};
 
 jBox=new JComboBox(v);
 
 jBox.addActionListener(this);
  
 p2.add(jBox); 
 p2.add(del);
 
 
  p2.add(jSliderVolume);
 
 jPanels=new JPanel[list.getList().size()];
 
 for (int i = 0; i < list.getList().size(); i++) {
  
  Music music=list.getList().get(i);
  
  JPanel jPanel=new MyJPanel(music);
  
  
  JLabel jLabel=new JLabel(music.getName(),SwingConstants.CENTER);
  jLabel.setSize(300, 10);
  jLabel.setHorizontalTextPosition(JLabel.CENTER);
  
  jPanel.setBackground(Color.WHITE);
  
  jPanels[i]=jPanel;
  
  jPanel.addMouseListener(this);
  
  jPanel.add(jLabel);
  
  
  
  p3.add(jPanel);
  
  
 }
 
 
 p3.setBackground(Color.WHITE);
 
 p3.setLayout(new GridLayout(10, 1));
 
 p3.setSize(320, 500);
 
 
 this.add(p1,BorderLayout.NORTH);
 this.add(p2,BorderLayout.SOUTH);
 
 
  
  
 
 
 model=new Model();  //添加表
 
 jt=new JTable(model){ // 设置jtable的单元格为透明的
  public Component prepareRenderer(TableCellRenderer renderer,
    int row, int column) {
   Component c = super.prepareRenderer(renderer, row, column);
   if (c instanceof JComponent) {
    ((JComponent) c).setOpaque(false);
   }
   return c;
   }
   };;
   
 jt.setOpaque(false);
 
 jt.setRowHeight(30);
 jt.setSelectionMode(ListSelectionModel.SINGLE_SELECTION );
 jt.setShowHorizontalLines(false);
 jt.setSelectionBackground(new Color(189,215,238));
 jt.addMouseListener(this);
 
 jsp = new JScrollPane(jt);
 
 jsp.setOpaque(false);
 jsp.getViewport().setOpaque(false);
 
 
 //addmusic();
 
 //this.add(p3,BorderLayout.CENTER);
 
 this.add(jsp,BorderLayout.CENTER);
 
 
 this.setDefaultCloseOperation(EXIT_ON_CLOSE);
 
 this.addWindowListener(this);
 
 Image image=this.getToolkit().getImage("img/icon.jpg");
 
 this.setIconImage(image);
 
 this.setTitle("音乐播放器");
 
  ImageIcon icon = new ImageIcon("img/bg.jpg"); 
  JLabel lab = new JLabel(icon); // 将图片放入到label中
  lab.setBounds(0, 0, icon.getIconWidth(), icon.getIconHeight()); // 设置放有图片的label的位置
  
  this.getContentPane().add(lab, -1); // jthis本身是窗体，不能放置任何组件，用getContentPane()方法得到this的默认内容面板，将lab放入其中，-1表示放入面板的下层
  this.getContentPane().add(jsp, 0); // 0表示放在面板的最顶层
  Container con = this.getContentPane();
  ((JPanel)con).setOpaque(false); // 设置面板为透明的
  p2.setOpaque(false);
  jSliderVolume.setOpaque(false);
  jPanel2.setOpaque(false);
  p1.setOpaque(false);
  p3.setOpaque(false);
  jSliderPlayProgress.setOpaque(false);
 this.setLocation(400, 200);
 this.setSize(337, 525);
 this.setResizable(false);
 this.setVisible(true);
 }
 
 @Override
 public void mouseClicked(MouseEvent e) {
 
 System.out.println("开始播放");
 
 if (e.getSource()==open) {
  
  if (p==null) {//开始
  p=new Player(jSliderVolume,jSliderPlayProgress);
  p.setMusic(MusicList.getList().get(0));
  jt.setRowSelectionInterval(0,0);
  ThreadList.add(p);
  open.setText("暂停");
  p.start();
  }else{//继续
  if (ThreadList.getList().size()!=0) {
   p=ThreadList.getList().get(0);
  }
  
  String s=p.isPaused()?"暂停":"播放";
  open.setText(s);
  p.Pause();
  }
  
 }else if (e.getSource()==stop) {
  if (ThreadList.getList().size()!=0) {
  p=ThreadList.getList().get(0);
  }
  if (p!=null) {
  p.stopplay();
  p=null;
  open.setText("播放");
  }
 
  
 }else if (e.getSource()==pre) {//上一首
  premusic();

 }else if (e.getSource()==next) {//下一首
  nextmusic();
 }else if (e.getSource()==del) {
  
  delmusic();
   
 }else if (e.getSource()==jt&&e.getClickCount()==2) {//双击
  
  clickmusic();
  
  
  
 }

 
 }

 private void clickmusic() {
 //双击Jtable
 System.out.println("点击了");
 
 int rowNum = this.jt.getSelectedRow();
 System.out.println(rowNum);
 if(rowNum == -1) {
  JOptionPane.showMessageDialog(this, "你没有选择一项");
  return;
 }
 ArrayList list=ThreadList.getList();
 
 
 System.out.println(list.size()+"音乐文件数目");
 
  if (list.size()==0) {
  
  p=new Player(jSliderVolume,jSliderPlayProgress);
  p.setMusic(MusicList.getList().get(rowNum));
  ThreadList.add(p);
  open.setText("暂停");
  p.start();
 }else{
  System.out.println("停止");
 list.get(0).stopplay();
 list.clear();
 p=new Player(jSliderVolume,jSliderPlayProgress);
  p.setMusic(MusicList.getList().get(rowNum));
  open.setText("暂停");
  list.add(p);
  p.start();
 }
 }

 private void delmusic() {
 int rowNum = this.jt.getSelectedRow();
 
 
 MusicList.getList().remove(rowNum);
 
 System.out.println(MusicList.getList().size());
 
 jt.setModel(new Model());

 
  ArrayList list=ThreadList.getList();
  p=new Player(jSliderVolume,jSliderPlayProgress);
  System.out.println(list.size()+"大小");
  if (list.size()!=0) {
  list.get(0).stopplay();
  list.clear();
  open.setText("暂停");
  if(rowNum==0){//第一个
   System.out.println("第一个");
    jt.setRowSelectionInterval(0,0);
    p.setMusic(MusicList.getList().get(rowNum));
    
    
  }else if(rowNum==MusicList.getList().size()){//最后一个
   System.out.println("最后一个");
    
    jt.setRowSelectionInterval(rowNum-2,rowNum-1);
    p.setMusic(MusicList.getList().get(rowNum-1));
    
  }else {
   System.out.println("中间");
   
    jt.setRowSelectionInterval(rowNum-1,rowNum);
   p.setMusic(MusicList.getList().get(rowNum));
    
  }
   list.add(p);
   p.start();
  }
 }

 public JTable getJt() {
 return jt;
 }

 private void premusic() {
 System.out.println("上一首");
 
 ArrayList list=ThreadList.getList();
 
 int id=Integer.parseInt(list.get(0).getMusic().getId());
 
 if(id!=0){
 if (id==1) {
  jt.setRowSelectionInterval(0,0);
 }else{
  jt.setRowSelectionInterval(id-2,id-1);
 }
 System.out.println(id);
 
 list.get(0).stopplay();
 list.clear();
 
  p=new Player(jSliderVolume,jSliderPlayProgress);

  p.setMusic(MusicList.getList().get(id-1));
  System.out.println(id-1);
  
  open.setText("暂停");
  list.add(p);
  p.start();
 }
 }

 private void nextmusic() {
 System.out.println("下一首");
 ArrayList list=ThreadList.getList();
 int id=Integer.parseInt(list.get(0).getMusic().getId());
 
 System.out.println(id);
 if(id!=MusicList.getList().size()-1){ //122
  
 jt.setRowSelectionInterval(id,id+1); //123条
 
 list.get(0).stopplay();
 list.clear();
 
 p=new Player(jSliderVolume,jSliderPlayProgress);
 
  p.setMusic(MusicList.getList().get(id+1));
  System.out.println(id+1);
  
  open.setText("暂停");
  list.add(p);
  p.start();
}
 }
 //判断双击
/* private boolean checkClickTime() {
 long nowTime = (new Date()).getTime();
 if ((nowTime - clickTime) < 300) {
 clickTime = nowTime;
 return true;
 }
 clickTime = nowTime;
 return false;
 }*/
 
 private void addmusic(String path) {//增加mp3文件夹
 
 System.out.println("增加mp3文件夹");
 ArrayList musiclist=MusicList.getList();
  
  List_File fm = new List_File();
  ArrayList FileList = fm.serachFiles(path);
  
  for (int i = 0; i < FileList.size(); i++) {
  Music music= new Music();
   music.setId(musiclist.size()+"");
   String[] s=(String[]) FileList.get(i);
   
   music.setName(s[0]);
   music.setPath(s[1]);
  musiclist.add(music);
  }
  
  jt.setModel(new Model());
 
 }

 @Override
 public void mouseEntered(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }

 @Override
 public void mouseExited(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }

 @Override
 public void mousePressed(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }

 @Override
 public void mouseReleased(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }



 @Override
 public void actionPerformed(ActionEvent e) {
 if (e.getSource()==fm) {//添加mp3文件
 if(fileinput==null) fileinput = new FileInput(this);
  fileinput.open();
  File[] s=fileinput.getFiles();
  ArrayList musiclist=MusicList.getList();
  
  
  if(s!=null){
  for(int i=0;i list=MusicList.getList();
  for (int i = 0; i < list.size(); i++) {
  FileList.writeFile("file/musiclist.txt",list.get(i).getId()+","+list.get(i).getName()+","
   +list.get(i).getPath()+"\n");
  }
  
 }
 
 
 
 
 
 }



 @Override
 public void windowDeactivated(WindowEvent e) {
 // TODO Auto-generated method stub
 
 }



 @Override
 public void windowDeiconified(WindowEvent e) {
 // TODO Auto-generated method stub
 
 }



 @Override
 public void windowIconified(WindowEvent e) {
 // TODO Auto-generated method stub
 
 }



 @Override
 public void windowOpened(WindowEvent e) {
 // TODO Auto-generated method stub
 System.out.println("open");
 
 File file=new File("file/musiclist.txt");
 
 if (file.exists()==false) {
  try {
  file.createNewFile();
  } catch (IOException e1) {
  // TODO Auto-generated catch block
  e1.printStackTrace();
  }
 }else {


  FileList.readFileByLines("file/musiclist.txt");
  jt.setModel(new Model());
 }
 
 
 
 }

}