Swing之音乐播放器实例

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package com.szsm.swing.framepanel;import java.applet.Applet;import java.applet.AudioClip;import java.awt.Dimension;import java.awt.FlowLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.File;import java.net.MalformedURLException;import javax.swing.JButton;import javax.swing.JFileChooser;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.filechooser.FileNameExtensionFilter;import com.szsm.swing.parent.FrameSet;public class PlayFrame extends FrameSet {File file = null;public PlayFrame() {}@Overrideprotected void init() {super.init();}@Overrideprotected void initInterface() {super.initInterface();this.setLayout(new FlowLayout());this.setSize(400, 100);parentContainer.add(new PlayPanel());}class PlayPanel extends JPanel {public PlayPanel() {final JTextField field = new JTextField();field.setPreferredSize(new Dimension(300, 40));this.add(field);JButton select = new JButton("选择");select.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent arg0) {JFileChooser chooser = new JFileChooser(); chooser.setFileFilter(new FileNameExtensionFilter("支持的音频文件(*.wav,*.au,*.mid)", "wav", "au", "mid")) ; chooser.showOpenDialog(PlayFrame.this);  file = chooser.getSelectedFile();  if(null != file)  {  String path = file.getAbsolutePath();  field.setText(path);  }}});JButton play = new JButton("播放");play.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent arg0) {if(clip!=null){clip.stop();}try {clip = Applet.newAudioClip(file.toURI().toURL());clip.play();} catch (MalformedURLException e) {// TODO Auto-generated catch blocke.printStackTrace();}}});this.add(select);this.add(play);}} AudioClip clip = null;}

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