今天编辑了一个播放mid音乐的程序，呵呵， 分享一下我的快乐！ 祝大家学习进步！ import java.awt.event.*; import javax.swing.*; import javax.sound.midi.*; import java.awt.*; import java.io.*;
public class TestPlay extends JFrame implements ActionListener { JButton startButton = new JButton("Start"); JButton stopButton = new JButton("Stop"); Player playBar = new Player(); JLabel label = new JLabel("name",SwingConstants.LEFT); JTextField text = new JTextField("Enter music name:",SwingConstants.RIGHT); public TestPlay() { super("Playing music"); setSize(235,90); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); BorderLayout bord = new BorderLayout(); GridLayout layout = new GridLayout(1,2); JPanel pane1 = new JPanel(); JPanel pane2 = new JPanel(); pane1.setLayout(layout); pane2.setLayout(layout); startButton.addActionListener(this); stopButton.addActionListener(this); startButton.setEnabled(true); stopButton.setEnabled(false); pane1.add(label); playBar.name = text.getText(); pane1.add(text); pane2.add(startButton); pane2.add(stopButton); JPanel pane = new JPanel(); pane.setLayout(bord); pane.add("Center",pane1); pane.add("South",pane2); setContentPane(pane); show(); } public void actionPerformed(ActionEvent evt) { Object src = evt.getSource(); if(src==startButton){ playBar.name = text.getText(); playBar.play(); startButton.setEnabled(false); stopButton.setEnabled(true); } else if(src==stopButton){ playBar.stop(); startButton.setEnabled(true); stopButton.setEnabled(false); } } public static void main(String[] args){ try{ UIManager.setLookAndFeel( UIManager.getSystemLookAndFeelClassName() ); }catch(Exception e){} TestPlay frame = new TestPlay(); } }
class Player implements Runnable { Thread runner; String name = null; Sequencer sound; Sequence soundname; File file; void play(){ if(runner==null){ runner = new Thread(this); runner.start(); } } void stop(){ if(runner!=null) sound.close(); runner = null; } public void run() { try{ sound = MidiSystem.getSequencer(); file = new File(name); soundname = MidiSystem.getSequence(file); sound.open(); sound.setSequence(soundname); sound.start(); while(sound.isRunning()){ try{ Thread.sleep(1000); }catch(Exception e){ System.out.println("some problems happended in this programe"); } } sound.close(); }catch(Exception e){ System.out.println("can't play the music" + e.getMessage()); } } }
----------------解决方案--------------------------------------------------------
嗯，写得不错，很高兴看到你的进步。在JTextField右边加上一个JButton然后点击Button调出JFileChooser让用户选择歌曲就更加完美了。还有就是异常处理的时候最好把每个Exception都细分一下，不要仅仅写Exception这个超类，这样不利于错误处理，当然你可能是为了方便，先写出来再说，但是在改进的时候这些地方一定要改哦。
真心希望你能更上一层楼！
----------------解决方案--------------------------------------------------------
怎么加啊
楼上的你能不能加一下，让我们也学习一下啊
----------------解决方案--------------------------------------------------------
请问怎么不可以播放MP3啊
还是必须下载JMF才可以用啊？
----------------解决方案--------------------------------------------------------
我加了打开按妞，可是不能播放啊
这是为什么呢
我真是一个菜鸟
----------------解决方案--------------------------------------------------------
估计是你的按钮动作不能响应
----------------解决方案--------------------------------------------------------
----------------解决方案--------------------------------------------------------