我的java程序中有三个按钮可以播放三种不同的声音。看看我的代码：
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，声音“OuvertureContacts.wav”播放得很好。但之后，当我按下“boutonEnvoyer”按钮或“boutonAnnuler”按钮时，他们的声音没有播放......有什么问题，我使用三个按钮的相同代码但是当我按下一个按钮时，另一个没有在第一次按下后播放声音！
我非常感谢你的帮助，提前谢谢！
答案 0 :(得分：5)
你的片段提出了几个问题：
应在event dispatch thread上仅构建和操作Swing GUI对象。
为每个不同的声音提供自己的流和剪辑;每次剪辑只初始化一次，而不是每次播放剪辑。
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，但您可能希望将剪辑定位并start()在一个单独的线程中;这将最大限度地减少EDT上的延迟并增强活力。
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();
}
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://stackoverflow.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();
}
}
}