如何使用JButton播放.wav文件？

所以最近，我一直试图制作自己的马里奥游戏（对我自己，可能是为了展示我的其他朋友）。 游戏包括按钮。 当我点击其他游戏中的按钮时，它会发出声音。 我很乐意将这个function添加到我的游戏中。 问题是，它没有发挥作用。 我的源代码是：

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.Clip; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class JButtonClick { JButton test = new JButton("Click Me!"); JPanel panel = new JPanel(); 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("Error with playing sound."); ex.printStackTrace( ); } } public JButtonClick() { JFrame frame = new JFrame("Button-Click test"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLocationRelativeTo(null); frame.pack(); frame.add(panel); frame.setSize(800, 600); frame.setResizable(true); frame.setVisible(true); panel.add(test); test.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { playSound("JButton.wav"); } }); } public static void main(String[] args) { new JButtonClick(); } } 

我的.wav文件与此类在同一个包中。 但它没有播放我想要的声音，而是说：

 java.io.FileNotFoundException: C:\Users\diego\workspace\Super Mario Bros 1\JButton.wav (The system cannot find the file specified) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.(Unknown Source) at com.sun.media.sound.WaveFloatFileReader.getAudioInputStream(Unknown Source) at javax.sound.sampled.AudioSystem.getAudioInputStream(Unknown Source) at JButtonClick.playSound(JButtonClick.java:21) at JButtonClick$1.actionPerformed(JButtonClick.java:49) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$200(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) 

我究竟做错了什么？！

Answer 1

这是因放置.wav文件而导致的问题。

根据您的问题，您已将它放在与此类相同的包中，这就是您获取FileNotFoundException的原因。

让我解释一下new File(pathname)工作原理：

关于File的 Javadoc说：

路径名，无论是抽象的还是字符串forms，可以是绝对的或相对的。 绝对路径名是完整的，因为不需要其他信息来定位它表示的文件。 相反，相对路径名必须根据从其他路径名获取的信息来解释。 默认情况下，java.io包中的类始终解析当前用户目录的相对路径名。

• 你在eclipse中运行这个应用程序然后将.wav文件直接放在项目中（ src文件夹之外），如下所示：

   AudioSystem.getAudioInputStream(new File("Jbutton.wav")); 

• 您也可以尝试将其放在resource文件夹中。

   AudioSystem.getAudioInputStream(new File("resources/Jbutton.wav")); 

Answer 2

自定义声音播放…使用NetBeans ..
首先导入一些像这样的包或类名

  import java.applet.Applet; import java.applet.AudioClip; import java.net.URL; 

不起作用，因为在java.lang.NullPointerException上生成错误

 URL url = getClass().getResource("\\dbmsystem\\src\\sound\\Your_sound_name.wav"); URL url = getClass().getResource("G:\\zala\\dbmsystem\\src\\sound\\Your_sound_name.wav"); 

但正确的工作就像这样

 URL url = getClass().getResource("/sound/Your_sound_name.wav"); AudioClip clip = Applet.newAudioClip(url); clip.play();