www.pudn.com > Play.rar > Play.java

import java.awt.*; 
import java.awt.event.*; 
import java.io.*; 
import java.net.*; 
import java.util.*; 
import javax.swing.*; 
import javax.swing.filechooser.FileFilter; 
 
import javax.media.*; 
import javax.media.bean.playerbean.*; 
 
public class Play 
{ 
        public static void main(String[] args) 
        {   
                PlayerFrame aPlayerFrame = new PlayerFrame(); 
                aPlayerFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
                aPlayerFrame.setVisible(true); 
        } 
} 
 
 
class PlayerFrame extends JFrame 
{ 
        public PlayerFrame() 
        { 
                setTitle("Play a music"); 
                setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT); 
 
                // add the menu and the Open and Exit menu items 
                JMenuBar menuBar = new JMenuBar(); 
                JMenu menu = new JMenu("File"); 
 
                JMenuItem openItem = new JMenuItem("Open"); 
                menu.add(openItem); 
                openItem.addActionListener(new OpenAction()); 
 
                JMenuItem exitItem = new JMenuItem("Exit"); 
                menu.add(exitItem); 
                exitItem.addActionListener(new  
                ActionListener() 
                { 
                        public void actionPerformed(ActionEvent event) 
                        { 
                                System.exit(0); 
                        } 
                }); 
 
                menuBar.add(menu); 
                setJMenuBar(menuBar); 
 
                aMediaPlayer.setPlaybackLoop(true); 
                aMediaPlayer.setControlPanelVisible(true); 
                add(aMediaPlayer); 
        } 
 
        void DealFile(String FileName) 
        { 
                try 
                { 
                        File sourceFile = new File(FileName); 
                        if (aPlayer == null) 
                        { 
                                aPlayer = Manager.createRealizedPlayer(sourceFile.toURI().toURL()); 
                                aMediaPlayer.setPlayer(aPlayer); 
                        } 
                        else 
                                aMediaPlayer.setDataSource(Manager.createDataSource(sourceFile.toURI().toURL())); 
                        pack(); 
                        aMediaPlayer.start(); 
                } 
                catch(NoPlayerException e) 
                { 
                        MyErrorDialog errorDialog = new MyErrorDialog(PlayerFrame.this,"File format"); 
                        errorDialog.setVisible(true); 
                } 
                catch(Exception e) 
                { 
                        e.printStackTrace(); 
                        MyErrorDialog errorDialog = new MyErrorDialog(PlayerFrame.this,"Bad File Name"); 
                        errorDialog.setVisible(true); 
                } 
        } 
 
        private class OpenAction implements ActionListener 
        { 
                public void actionPerformed(ActionEvent event) 
                { 
                        JFileChooser chooser = new JFileChooser(); 
                        if(lastPath == null) 
                                chooser.setCurrentDirectory(new File(".")); 
                        else 
                                 
                                chooser.setCurrentDirectory(lastPath); 
 
                        chooser.addChoosableFileFilter(new FileFilter() 
                        { 
                                public boolean accept(File f) 
                                { 
                                        return f.getName().toLowerCase().endsWith(".au") || f.isDirectory(); 
                                } 
 
                                public String getDescription() 
                                { 
                                        return "sun media(*.au)"; 
                                } 
                        }); 
 
                        chooser.addChoosableFileFilter(new FileFilter() 
                        { 
                                public boolean accept(File f) 
                                { 
                                        return f.getName().toLowerCase().endsWith(".wav") || f.isDirectory(); 
                                } 
 
                                public String getDescription() 
                                { 
                                        return "sound wave(*.wav)"; 
                                } 
                        }); 
 
                        chooser.addChoosableFileFilter(new FileFilter() 
                        { 
                                public boolean accept(File f) 
                                { 
                                        return f.getName().toLowerCase().endsWith(".mp3") || 
                                                f.getName().toLowerCase().endsWith(".mp2") || 
                                                f.getName().toLowerCase().endsWith(".mp1") ||  
                                                f.isDirectory(); 
                                } 
 
                                public String getDescription() 
                                { 
                                        return "mpeg media(*.mp1, *.mp2, *.mp3)"; 
                                } 
                        }); 
 
                        if (chooser.showOpenDialog(PlayerFrame.this) == JFileChooser.APPROVE_OPTION) 
                        { 
                                name = chooser.getSelectedFile().getPath(); 
                                lastPath = chooser.getCurrentDirectory(); 
                                DealFile(name); 
                        } 
                } 
        } 
 
        public static final int DEFAULT_WIDTH = 400; 
        public static final int DEFAULT_HEIGHT = 300;   
        private String name; 
        private File lastPath; 
        private MediaPlayer aMediaPlayer = new MediaPlayer(); 
        private Player aPlayer; 
} 
 
class MyErrorDialog extends JDialog 
{ 
        MyErrorDialog(Frame ownFrame, String message) 
        { 
                super(ownFrame, "Error occorred", true); 
                setLocationRelativeTo(ownFrame); 
                JPanel aPanel = new JPanel(); 
                JLabel aLabel = new JLabel(message+" error"); 
                aPanel.add(aLabel); 
 
                JButton ok = new JButton("OK"); 
                ok.addActionListener(new ActionListener() 
                { 
                        public void actionPerformed(ActionEvent event) 
                        { 
                                setVisible(false); 
                        } 
                }); 
 
                add(aPanel, BorderLayout.CENTER); 
                add(ok, BorderLayout.SOUTH); 
                pack(); 
        } 
}