java音乐播放器源码/MP3播放器

package javaApplication3; 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JMF public class MP3 extends JFrame implements Runnable { public JLabel shijian; private JSlider sldDiameter; public MediaPlayer soumd1; public JButton playSound, stopsound; public JButton tjian, shanc, baocun, duqu; public JPanel jp_shijian, jp_yinyue, jp_liebiao, jp_jindu; 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课题之音乐播放器篇"); soumd1 = new MediaPlayer(); Container c = getContentPane(); c.setLayout(new FlowLayout()); mingcheng = new Vector(); jp_shijian = new JPanel(); shijian = new JLabel(); jp_shijian.add(shijian); c.add(jp_shijian); playSound = new JButton("播放"); stopsound = new JButton("停止"); jp_yinyue = new JPanel(); jp_yinyue.add(playSound); jp_yinyue.add(stopsound); c.add(jp_yinyue); jp_jindu = new JPanel(); sj1 = new JLabel(); sj2 = new JLabel(); sldDiameter = new JSlider(SwingConstants.HORIZONTAL, 0, 100, 0); sldDiameter.setMajorTickSpacing(1); sldDiameter.setPaintTicks(true); jp_jindu.add(sj1); jp_jindu.add(sldDiameter); jp_jindu.add(sj2); c.add(jp_jindu); vector = new Vector(); jl = new JList(mingcheng); //构造一个 JList，使其显示指定 Vector 中的元素 jl.setVisibleRowCount(5);//设置 visibleRowCount 属性，对于不同的布局方向，此方法有不同的含义：对于 VERTICAL 布局方向，此方法设置要显示的首选行数（不要求滚动）；对于其他方向，它影响单元的包装 jl.setFixedCellHeight(40);//设置一个固定值，将用于列表中每个单元的高度 jl.setFixedCellWidth(265); jl.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); c.add(new JScrollPane(jl));//视口。创建一个显示指定组件内容的 JScrollPane，只要组件的内容超过视图大小就会显示水平和垂直滚动条。 tjian = new JButton("添加"); shanc = new JButton("删除"); duqu = new JButton("导入"); baocun = new JButton("导出"); jp_liebiao = new JPanel(); jp_liebiao.add(tjian); jp_liebiao.add(shanc); jp_liebiao.add(baocun); jp_liebiao.add(duqu); c.add(jp_liebiao); baocun.addActionListener(new ActionListener() {//用于接收操作事件的侦听器接口 public void actionPerformed(ActionEvent event) { JFileChooser fileChooser = new JFileChooser(); fileChooser .setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); 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..弹出一个 "Save File" 文件选择器对话框..选择确认（yes、ok）后返回该值 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(); fileChooser .setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); if (fileChooser.showOpenDialog(MP3.this) == JFileChooser.APPROVE_OPTION) { String fileName = fileChooser.getSelectedFile() .getAbsolutePath(); try { ObjectInputStream input = new ObjectInputStream( new FileInputStream(fileName)); xinxi a1 = (xinxi) input.readObject(); mingcheng = a1.b; vector = a1.a; jl.setListData(mingcheng); } catch (Exception e) { e.printStackTrace();//将此 throwable 及其追踪输出至标准错误流。 } } } }); playSound.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (jl.getSelectedIndex() >= 0) {//返回最小的选择单元索引；只选择了列表中单个项时，返回该选择。如果什么也没有选择，则返回 -1 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")) {//\s 空白字符：[ \t\n\x0B\f\r] ..\S 非空白字符：[^\s]([\\S\\s]*) if (soumd1 != null) { // a = 0; b = 0; you = 0; soumd1.stop(); } soumd1.setMediaLocation("file:/" + yy); soumd1.start(); geshi=true; try { Thread.sleep(500);//在指定的毫秒数内让当前正在执行的线程休眠（暂停执行），此操作受到系统计时器和调度程序精度和准确性的影响。 } catch (InterruptedException eee) { } zongmiao=(int)soumd1.getDuration().getSeconds(); String aa=fen(zongmiao); sj2.setText(aa); } else JOptionPane.showMessageDialog(null,//JOptionPane 有助于方便地弹出要求用户提供值或向其发出通知的标准对话框..showMessageDialog 告知用户某事已发生。 "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; 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(); fileChooser .setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); fileChooser.setCurrentDirectory(new File("")); fileChooser .setFileFilter(new javax.swing.filechooser.FileFilter() {// 设置当前文件过滤器 public boolean accept(File file) { String name = file.getName().toLowerCase(); return name.endsWith(".mp3") || file.isDirectory();//测试此抽象路径名表示的文件是否是一个目录..当且仅当此抽象路径名表示的文件存在且 是一个目录时，返回 true } public String getDescription() { return "音乐文件(*.mp3)"; } }); if (fileChooser.showOpenDialog(MP3.this) == JFileChooser.APPROVE_OPTION) { String fileName = fileChooser.getSelectedFile() .getAbsolutePath(); vector.add(fileName); StringBuffer buffer = mingzi(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);//播放列表已改变，此处当于刷新 } } }); jl.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent event) {//指示组件中发生鼠标动作的事件 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(); }