JAVA版MP3音乐播放器+源代码（初学者）

package player; import java.awt.Graphics; import java.awt.Image; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; import javax.swing.KeyStroke; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import mp3.Mp3Controller; import action.NextAction; import action.PauseAction; import action.PrevAction; import action.StartAction; public class PlayerMenuBar extends JMenuBar implements ActionListener{ /** * */ private static final long serialVersionUID = 1L; public static int list=2; public static int numSkin = 0; String lnfName = null; MusicPlayer musicPlayer=null; private Mp3Controller controller = null; private JMenu file=new JMenu("文件(F)"); private JMenu player=new JMenu("播放(P)"); private JMenu skin = new JMenu("皮肤 (K)"); private JMenu help=new JMenu("帮助 (H)"); private JMenuItem open=new JMenuItem("打开(O)"); private JMenuItem exit=new JMenuItem("退出(E)"); private JMenuItem prev=null; private JMenuItem next=null; private JMenuItem start=null; private JMenuItem pause=null; private JMenu mode=new JMenu("模式(M)"); private JMenuItem singleRotate=new JMenuItem("　单曲循环"); private JMenuItem contentplay=new JMenuItem("√ 目录播放"); private JMenuItem contentRotate=new JMenuItem("　目录循环"); private JMenuItem de = new JMenuItem("默认(D)"); private JMenuItem blue = new JMenuItem("蓝色(B)"); private JMenuItem green = new JMenuItem("绿色(G)"); private JMenuItem red = new JMenuItem("红色(R)"); private JMenuItem grey = new JMenuItem("灰色(X)"); private JMenuItem about=new JMenuItem("关于(A)"); public PlayerMenuBar(Mp3Controller controller,MusicPlayer musicPlayer){ this.controller=controller; this.musicPlayer=musicPlayer; initMenu(); this.add(file); this.add(player); this.add(skin); this.add(help); file.add(open); file.add(exit); player.add(start); player.add(pause); player.add(mode); player.add(prev); player.add(next); mode.add(singleRotate); mode.add(contentplay); mode.add(contentRotate); skin.add(de); skin.add(blue); skin.add(green); skin.add(red); skin.add(grey); help.add(about); } private void initMenu() { // TODO Auto-generated method stub prev=new JMenuItem(new PrevAction("上一曲(L)",controller)); next=new JMenuItem(new NextAction("下一曲(N)",controller)); start=new JMenuItem(new StartAction("开始(S)",controller)); pause=new JMenuItem(new PauseAction("暂停(B)",controller)); file.setMnemonic(KeyEvent.VK_F); open.setAccelerator(KeyStroke.getKeyStroke("control O")); exit.setAccelerator(KeyStroke.getKeyStroke("control E")); player.setMnemonic(KeyEvent.VK_P); start.setAccelerator(KeyStroke.getKeyStroke("control S")); pause.setAccelerator(KeyStroke.getKeyStroke("control B")); prev.setAccelerator(KeyStroke.getKeyStroke("control L")); next.setAccelerator(KeyStroke.getKeyStroke("control N")); mode.setMnemonic(KeyEvent.VK_M); singleRotate.setAccelerator(KeyStroke.getKeyStroke("control R")); contentplay.setAccelerator(KeyStroke.getKeyStroke("control C")); contentRotate.setAccelerator(KeyStroke.getKeyStroke("control D")); skin.setMnemonic(KeyEvent.VK_K); de.setAccelerator(KeyStroke.getKeyStroke("control D")); blue.setAccelerator(KeyStroke.getKeyStroke("control B")); green.setAccelerator(KeyStroke.getKeyStroke("control G")); red.setAccelerator(KeyStroke.getKeyStroke("control R")); grey.setAccelerator(KeyStroke.getKeyStroke("control X")); help.setMnemonic(KeyEvent.VK_H); about.setAccelerator(KeyStroke.getKeyStroke("control A")); singleRotate.addActionListener(this); contentplay.addActionListener(this); contentRotate.addActionListener(this); open.addActionListener(this); exit.addActionListener(this); de.addActionListener(this); blue.addActionListener(this); green.addActionListener(this); red.addActionListener(this); grey.addActionListener(this); about.addActionListener(this); } @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub if(e.getSource()==exit){ System.exit(0); } if(e.getSource()==open){ ListControlPanel.open(); } if (e.getSource() == about) { // 关于菜单 JFrame f = new JFrame("帮助"); f.add(new AboutPanel()); f.setBounds(800, 100, 400, 300); // 设置窗体的大小和相对位 f.setResizable(false); // 设置窗体大小不可变 f.setVisible(true); } if (e.getSource() == singleRotate)// 单曲循环 list = 1; if (e.getSource() == contentplay)// 目录播放 list = 2; if (e.getSource() == contentRotate)// 目录循环 list = 3; if (e.getSource() == de) { Skin.choose(0); numSkin = 0; lnfName = "javax.swing.plaf.metal.MetalLookAndFeel"; setLookandFeel(); } if (e.getSource() == blue) { Skin.choose(1); numSkin = 1; lnfName= UIManager.getCrossPlatformLookAndFeelClassName(); setLookandFeel(); } if (e.getSource() == green) { Skin.choose(2); numSkin = 2; lnfName = UIManager.getSystemLookAndFeelClassName(); setLookandFeel(); } if (e.getSource() == red) { Skin.choose(3); numSkin = 3; // lnfName = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel"; MusicPlayer.setDefaultLookAndFeelDecorated(true); // setLookandFeel(); } if (e.getSource() == grey) { Skin.choose(4); numSkin = 4; lnfName = "com.sun.java.swing.plaf.motif.MotifLookAndFeel"; setLookandFeel(); } } private void setLookandFeel(){ try { UIManager.setLookAndFeel(lnfName); } catch (ClassNotFoundException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (InstantiationException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (IllegalAccessException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (UnsupportedLookAndFeelException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } SwingUtilities.updateComponentTreeUI(musicPlayer); } public void paintBorder(Graphics g) { // TODO Auto-generated method stub super.paintBorder(g); this.repaint(); Image backgroundImage = null; switch (numSkin) { case 0: backgroundImage = new ImageIcon(PlayerToolBar.resourceDir + "sss0.jpg").getImage();// 从系统中加载图片 break; case 1: backgroundImage = new ImageIcon(PlayerToolBar.resourceDir + "sss1.jpg").getImage();// 从系统中加载图片 break; case 2: // backgroundImage = new ImageIcon(PlayerToolBar.resourceDir // + "sss2.jpg").getImage();// 从系统中加载图片 break; case 3: // backgroundImage = new ImageIcon(PlayerToolBar.resourceDir // + "sss3.jpg").getImage();// 从系统中加载图片 break; case 4: // backgroundImage = new ImageIcon(PlayerToolBar.resourceDir // + "sss4.jpg").getImage();// 从系统中加载图片 break; } if (backgroundImage != null) { g.drawImage(backgroundImage, 0, 0, getWidth(), getHeight(), this); } } } class AboutPanel extends JPanel { /** * */ private static final long serialVersionUID = 1L; public AboutPanel() { this.setLayout(null); JLabel edition = new JLabel("版本：电子音乐盒 1.0"); JLabel author = new JLabel("作者： 刘琳 张智勇 颜媛"); JLabel facultyAdviser = new JLabel("指导老师： 李芝兴"); edition.setBounds(60, 30, 200, 40); facultyAdviser.setBounds(150, 170, 200, 40); author.setBounds(150, 210, 200, 40); this.add(edition); this.a