Question

我一直在尝试在我的Netbeans Java项目中包含一些图像和声音，我搜遍了谷歌寻找所有我尝试过并实现的答案，但有些人在Netbeans中运行时正确播放音频文件但不是当它实际构建为JAR文件时。

我正在努力在执行JAR文件时播放声音。据我所知，项目中的包/文件夹被编译并构建到JAR文件中。

有人能指出我如何正确获取资源吗？

我的代码如下：

public void SND_REQUEST() {
    AudioInputStream clipNameAIS;
    Clip clipNameClip = null;
    try {
        clipNameAIS = AudioSystem.getAudioInputStream(getClass().getResourceAsStream("/Sounds/Cat.wav"));
        clipNameClip = AudioSystem.getClip();
        clipNameClip.open(clipNameAIS);
    } catch (Exception e) {
        JOptionPane.showMessageDialog(null,"Request Button Sound Not Working");
    }
    clipNameClip.setFramePosition(0);
    clipNameClip.start();
}

资源结构：

enter image description here

更新 - 22:45：

在Netbeans中运行时似乎有效，但在可执行的Jar文件中却没有。我试过两种方式，张贴图片：这个文件当然是好的，感谢1 Nik的帮助。

enter image description here

更新的代码：

   public void SND_REQUEST() {
        AudioInputStream clipNameAIS;
        Clip clipNameClip = null;
        try {
            clipNameAIS = AudioSystem.getAudioInputStream(getClass().getResourceAsStream("/overtimesystem/Sounds/Cat.wav"));
            clipNameClip = AudioSystem.getClip();
            clipNameClip.open(clipNameAIS);
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null,"Request Button Sound Not Working");
        }
        clipNameClip.setFramePosition(0);
        clipNameClip.start();
    }

结果：

enter image description here

打印堆栈跟踪：

java.lang.NullPointerException
    at com.sun.media.sound.SoftMidiAudioFileReader.getAudioInputStream(SoftMidiAudioFileReader.java:134)
    at javax.sound.sampled.AudioSystem.getAudioInputStream(AudioSystem.java:1113)
    at overtimesystem.OvertimeSystem.SND_REQUEST(OvertimeSystem.java:293)
    at overtimesystem.OvertimeSystem$ADD.actionPerformed(OvertimeSystem.java:148)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
    at java.awt.Component.processMouseEvent(Component.java:6525)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
    at java.awt.Component.processEvent(Component.java:6290)
    at java.awt.Container.processEvent(Container.java:2234)
    at java.awt.Component.dispatchEventImpl(Component.java:4881)
    at java.awt.Container.dispatchEventImpl(Container.java:2292)
    at java.awt.Component.dispatchEvent(Component.java:4703)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
    at java.awt.Container.dispatchEventImpl(Container.java:2278)
    at java.awt.Window.dispatchEventImpl(Window.java:2750)
    at java.awt.Component.dispatchEvent(Component.java:4703)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:751)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:702)
    at java.awt.EventQueue$3.run(EventQueue.java:696)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
    at java.awt.EventQueue$4.run(EventQueue.java:724)
    at java.awt.EventQueue$4.run(EventQueue.java:722)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:721)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

更新 - 工作::

AHH，发现问题，谢谢你的帮助。没想到在JOptionPane msgbox中传递E.printstack跟踪lol :)似乎我需要BufferReader才能正确地传输它。路径也是正确的。请查看适用于该项目的更新代码:)再次感谢!!!

public void SND_REQUEST() {
    AudioInputStream clipNameAIS;
    Clip clipNameClip = null;
    try {
        InputStream audioSrc = getClass().getResourceAsStream("/overtimesystem/Sounds/Cat.wav");
        InputStream bufferedIn = new BufferedInputStream(audioSrc);
        AudioInputStream audioStream = AudioSystem.getAudioInputStream(bufferedIn);

        clipNameClip = AudioSystem.getClip();
        clipNameClip.open(audioStream);
    } catch (Exception e) {
        JOptionPane.showMessageDialog(null, e);
        return;
    }
    clipNameClip.setFramePosition(0);
    clipNameClip.start();
}

Answer 1

有人能指出我如何正确获取资源吗？

假设资源在创建的jar文件中，您可以将路径定义为相对于包根的绝对路径：

clipNameAIS = AudioSystem.getAudioInputStream(getClass().getResourceAsStream("/overtimesystem/Sounds/Cat.wav"));

注意开头的/，将路径定义为绝对路径（相对于包根）。您还可以定义相对路径（相对于调用类）。例如，如果调用类位于/overtimesystem/Images/包中，则可以使用../Sounds/Cat.wav

访问该资源

NetBeans在JAR文件中获取资源？

1 个答案: