当我按下几个 Jbutton 时,无法播放多个声音
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【中文标题】当我按下几个 Jbutton 时,无法播放多个声音【英文标题】:Impossible to play several sounds when I pressed several Jbuttons 【发布时间】:2013-06-15 23:56:08 【问题描述】:我的 java 程序中有三个按钮可以播放三种不同的声音。看我的代码:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.*;
import java.awt.datatransfer.*;
public class VueEditeurEmail extends JFrame implements ActionListener
private JPanel container = new JPanel();
private JPanel containerHaut = new JPanel();
private JPanel containerAction = new JPanel();
private JButton boutonEnvoyer = new JButton("Envoi");
private JButton boutonAnnuler = new JButton("Annuler");
private JButton contacts = new JButton("Contacts");
private JButton coller = new JButton("Coller");
private JTextArea textArea = new JTextArea();
private ChampsTexte champs1 = new ChampsTexte("Expéditeur :", "");
private ChampsTexte champs2 = new ChampsTexte("Destinataire :", "");
private ChampsTexte champs3 = new ChampsTexte("Objet :", "");
private JOptionPane jop1 = new JOptionPane();
private JOptionPane jop2 = new JOptionPane();
private JOptionPane jop3 = new JOptionPane();
final Clipboard clipboard = container.getToolkit().getSystemClipboard();
public VueEditeurEmail()
this.setTitle("Expéditeur de Message");
this.setSize(500, 300);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
containerHaut.setLayout(new BoxLayout(containerHaut, BoxLayout.Y_AXIS));
containerHaut.add(champs1);
containerHaut.add(champs2);
containerHaut.add(contacts);
containerHaut.add(coller);
containerHaut.add(champs3);
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);
JScrollPane scrollPan = new JScrollPane(textArea);
container.setLayout(new BorderLayout());
container.setBackground(Color.white);
container.add(containerHaut, BorderLayout.NORTH);
container.add(scrollPan, BorderLayout.CENTER);
container.add(containerAction, BorderLayout.SOUTH);
containerAction.add(boutonEnvoyer, BorderLayout.EAST);
containerAction.add(boutonAnnuler, BorderLayout.WEST);
contacts.addActionListener(this);
boutonEnvoyer.addActionListener(this);
boutonAnnuler.addActionListener(this);
coller.addActionListener(this);
this.setContentPane(container);
this.setVisible(true);
containerHaut.setBackground(Color.GRAY);
champs1.setBackground(Color.GRAY);
champs2.setBackground(Color.GRAY);
champs3.setBackground(Color.GRAY);
textArea.setBackground(Color.YELLOW);
boutonEnvoyer.setBackground(Color.GRAY);
boutonAnnuler.setBackground(Color.GRAY);
public void playSound(String soundName)
try
AudioInputStream audioInputStream = Audiosystem.getAudioInputStream(new File(soundName).getAbsoluteFile( ));
Clip clip = AudioSystem.getClip( );
clip.open(audioInputStream);
clip.start( );
catch(Exception ex)
System.out.println("Erreur lors de la lecture du son");
ex.printStackTrace( );
public void actionPerformed(ActionEvent E)
if(E.getSource() == boutonEnvoyer)
playSound("Envoyé.wav");
Email monEmail = new Email(champs1.getTexte(), champs2.getTexte(), champs3.getTexte(), textArea.getText());
monEmail.EnvoiSMTP("admpcsrv1.uha.fr", 25);
ImageIcon img1 = new ImageIcon("Images/succès.png");
jop1.showMessageDialog(null, "L'Email a bien été envoyé", "Envoi réussi", JOptionPane.INFORMATION_MESSAGE, img1);
System.exit(0);
else if(E.getSource() == boutonAnnuler)
playSound("Annulé.wav");
ImageIcon img2 = new ImageIcon("Images/annuler.png");
jop2.showMessageDialog(null, "Appuyer sur OK pour confirmer l'annulation", "Annulation", JOptionPane.INFORMATION_MESSAGE, img2);
System.exit(0);
else if (E.getSource() == contacts)
playSound("OuvertureContacts.wav");
ImageIcon img3 = new ImageIcon("Images/OuvertureContacts.png");
jop3.showMessageDialog(null, "Ouverture de la liste des contacts, appuyer sur Ok pour fermer ce popup", "Liste des contacts", JOptionPane.INFORMATION_MESSAGE, img3);
File file = new File("Fichiers/InfosContacts.xls");
try
Desktop.getDesktop().open(file);
catch(IOException e)
System.out.println("Ouverture du fichier impossible");
else if (E.getSource() == coller)
Transferable clipData = clipboard.getContents(clipboard);
try
if(clipData.isDataFlavorSupported(DataFlavor.stringFlavor))
String s = (String)(clipData.getTransferData(DataFlavor.stringFlavor));
champs2.fieldTexte.replaceSelection(s);
catch(Exception ufe)
public static void main(String[] args)
VueEditeurEmail monEditeur = new VueEditeurEmail();
当我按下“联系人”按钮时,“OuvertureContacts.wav”的声音播放得很好。但是之后,当我按下“boutonEnvoyer”按钮或“boutonAnnuler”按钮时,它们的声音没有播放......问题是什么,我对三个按钮使用相同的代码但是当我按下一个按钮时,另一个没有第一次按下后不播放声音!
非常感谢您的帮助,在此先感谢!
【问题讨论】:
乍一看,你有没有试过在使用后关闭audioInputStream? 也许 é 字符的读取方式不正确。您是否尝试用标准 e 替换它们? 音频也应该在自己的线程中播放 您应该在另一个线程中播放您的歌曲,因为如果您在与 guiEDT
相同的线程中播放它会阻塞
我一直觉得从 AudioSystem 中检索到的用于播放的东西在自己的线程中运行,我很傻。
【参考方案1】:
您的片段提出了几个问题:
Swing GUI 对象应仅在event dispatch thread 上构造和操作。
为每个不同的声音提供自己的流和剪辑;每个剪辑只初始化一次,而不是每次播放剪辑时。
AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(…);
Clip clip = AudioSystem.getClip( );
clip.open(audioInputStream);
虽然音频系统在单独的线程中播放剪辑,但您可能希望在单独的线程中定位和start()
剪辑;这将最大限度地减少 EDT 的延迟并提高活跃度。
private void playSound()
Runnable soundPlayer = new Runnable()
@Override
public void run()
try
clip.setMicrosecondPosition(0);
clip.start();
catch (Exception e)
e.printStackTrace();
;
new Thread(soundPlayer).start();
另见javasound标签info和这个相关的example。
附录:SSCCE
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.net.URL;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
/**
* @see https://***.com/a/17130160/230513
* @see http://pscode.org/media/
* @see http://www.soundjay.com/beep-sounds-1.html
*/
public class Test
public static void main(String[] args)
EventQueue.invokeLater(new Runnable()
@Override
public void run()
new Test().display();
);
private void display()
JFrame f = new JFrame("Test");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setLayout(new FlowLayout());
f.add(new JButton(new SoundAction("Play 1",
"http://pscode.org/media/leftright.wav")));
f.add(new JButton(new SoundAction("Play 2",
"http://www.soundjay.com/button/beep-1.wav")));
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
class SoundAction extends AbstractAction
private Clip clip;
public SoundAction(String name, String location)
super(name);
try
URL url = new URL(location);
AudioInputStream ais = AudioSystem.getAudioInputStream(url);
clip = AudioSystem.getClip();
clip.open(ais);
catch (Exception e)
e.printStackTrace(System.err);
@Override
public void actionPerformed(ActionEvent e)
// Runnable optional
Runnable soundPlayer = new Runnable()
@Override
public void run()
try
clip.setMicrosecondPosition(0);
clip.start();
catch (Exception e)
e.printStackTrace(System.err);
;
new Thread(soundPlayer).start();
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