java音乐播放器实现代码

本文实例为大家分享了java音乐播放器的具体代码，供大家参考，具体内容如下

这个是源码结构介绍

这个是界面，有点简陋，见笑了，但是基本上的东西都有了，没办法，没有美工的程序写的界面

直接上源代码Player.java

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;
}

}

}

这个主要是播放音乐的类，播放，暂停，停止，上一首，下一首都有了 

 View.java

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<Player> 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<Player> 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<Player> 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<Player> 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<Music> musiclist=MusicList.getList();

List_File fm = new List_File();
ArrayList<String[]> 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<Music> musiclist=MusicList.getList();

if(s!=null){
for(int i=0;i<s.length;i++){
Music music= new Music();
music.setId(musiclist.size()+"");
music.setName(s[i].getName());
music.setPath(s[i].getAbsolutePath());
musiclist.add(music);
jt.setModel(new Model());
}
}
}else if (e.getSource()==dm) {

if(dirInput==null) dirInput = new DirInput(this);

dirInput.open();

File s=dirInput.getFile();

if(s!=null){

addmusic(s.getAbsolutePath());
}

}else if (e.getSource()==jBox) {
//顺序播放 (默认)default 随机rand 单曲循环 onecircle 列表循环 morecircle 单曲播放 one

if (ThreadList.getList().size()!=0) {
p=ThreadList.getList().get(0);
}else {
p=new Player(jSliderVolume,jSliderPlayProgress);
ThreadList.getList().add(p);
}

String[] s={"default","rand","onecircle","morecircle","one"};

Setting.setMode(s[jBox.getSelectedIndex()]);

}
}

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

}

@Override
public void windowClosed(WindowEvent e) {
// TODO Auto-generated method stub
System.out.println("关闭kk");
}

@Override
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
System.out.println("close");

if (MusicList.getList().size()!=0) {
System.out.println("写入文件");
//清空之前的内容
FileList.clear("file/musiclist.txt");
ArrayList<Music> 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());
}

}

}

剩下的代码在后面附件上有，现在主要是有几个小问题，第一，我还没有找到获取音乐文件具体信息比较好的办法，所以每一首暂时还没有歌手，作曲的信息，第二界面有点难看，见谅了，第三个是打包成jar文件会有路径问题，暂时还没办法解决，我是直接在myeclipse上运行，一切正常，就是打包有点小问题

暂时先说这些了，这个是我业余时间的项目，有什么不足的，大家都可以提出来。

下载地址：音乐播放器