Java如何等待剪辑结束

Question

我正在尝试播放一些小的声音效果，并且通过一种方法来执行此操作，该方法将加载剪辑，然后播放它，然后应关闭剪辑以允许以后加载新剪辑，而不会引起LineUnavailable问题。 这是我使用的方法：

public void playClip(String filename){

    Clip clip = null;

    try{

        AudioInputStream inputStream = AudioSystem.getAudioInputStream(getClass().getResource(filename));
        AudioFormat format = inputStream.getFormat();
        DataLine.Info info = new DataLine.Info(Clip.class, format);
        clip = (Clip)AudioSystem.getLine(info);
        clip.open(inputStream);
        clip.start();

    }catch(Exception e){

        e.printStackTrace();

    }

}

现在，在clip.start() ，剪辑仅停留在某处，用完一行，直到出现以下错误：

javax.sound.sampled.LineUnavailableException: line with format PCM_SIGNED 44100.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian not supported.
at com.sun.media.sound.DirectAudioDevice$DirectDL.implOpen(DirectAudioDevice.java:513)
at com.sun.media.sound.DirectAudioDevice$DirectClip.implOpen(DirectAudioDevice.java:1304)
at com.sun.media.sound.AbstractDataLine.open(AbstractDataLine.java:121)
at com.sun.media.sound.DirectAudioDevice$DirectClip.open(DirectAudioDevice.java:1085)
at com.sun.media.sound.DirectAudioDevice$DirectClip.open(DirectAudioDevice.java:1175)
at com.andrewlalisofficial.ChatClientCore.playClip(ChatClientCore.java:233)
at com.andrewlalisofficial.ChatClientWindow$4.mouseClicked(ChatClientWindow.java:207)
at java.awt.Component.processMouseEvent(Component.java:6519)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3312)
at java.awt.Component.processEvent(Component.java:6281)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4872)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4501)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:747)
at java.awt.EventQueue.access$300(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:706)
at java.awt.EventQueue$3.run(EventQueue.java:704)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:720)
at java.awt.EventQueue$4.run(EventQueue.java:718)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:717)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

javax.sound.sampled.LineUnavailableException：格式为PCM_SIGNED 44100.0 Hz的行，16位，立体声，4字节/帧，不支持little-endian。 在com.sun.media.sound.DirectAudioDevice $ DirectDL.implOpen（DirectAudioDevice.java:513）在com.sun.media.sound.DirectAudioDevice $ DirectClip.implOpen（DirectAudioDevice.java:1304）在com.sun.media.sound com.sun.media.sound.DirectAudioDevice $ DirectClip.open（DirectAudioDevice.java:1085）上的.AbstractDataLine.open（AbstractDataLine.java:121）com.sun.media.sound.DirectAudioDevice $ DirectClip.open（DirectAudioDevice.java）上的。 ：1175），位于com.andrewlalisofficial.ChatClientCore.playClip（ChatClientCore.java:233），位于com.andrewlalisofficial.ChatClientWindow $ 4.mouseClicked（ChatClientWindow.java:207），位于java.awt.Component.processMouseEvent（Component.java:6519） java.awt.Component的javax.swing.JComponent.processMouseEvent（JComponent.java:3312）在java.awt.Component.processEvent（Component.java:6281）在java.awt.Container.processEvent（Container.java:2229） .dispatchEventImpl（Component.java:4872）at java.awt.Container.dispatchEventImpl（Container.java:2287）at java.awt.Component.dispatchEvent（Component.java:4698） 在java.awt.LightweightDispatcher.dispatchEvent（Container.java:4422）在java.awt.LightweightDispatcher.processMouseEvent（Container.java:4501）在java.awt.LightweightDispatcher.dispatchEvent（Container.java:4422）在java.awt.LightweightDispatcher.processMouseEvent（Container.java:4501）在java.awt。 java.awt.Window.dispatchEventImpl（Window.java:2719）处的Container.dispatchEventImpl（Container.java:2273），java.awt.EventQueue.dispatchEventImpl（EventQueue）处的java.awt.Component.dispatchEvent（Component.java:4698） .java：747）at java.awt.EventQueue.access $ 300（EventQueue.java:103）at java.awt.EventQueue $ 3.run（EventQueue.java:706）at java.awt.EventQueue $ 3.run（EventQueue.java ：704），位于java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76），位于java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:87），位于java.security.AccessController.doPrivileged（Native Method）。 awt.EventQueue $ 4.run（EventQueue.java:720）at java.awt.EventQueue $ 4.run（EventQueue.java:718）at java.security.AccessController.doPrivileged（Native Metho） d）在java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76）在java.awt.EventQueue.dispatchEvent（EventQueue.java:717）在java.awt.EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java:242） .awt.EventDispatchThread.pumpEventsForFilter（EventDispatchThread.java:161）at java.awt.EventDispatchThread.pumpEventsForHierarchy（EventDispatchThread.java:150）at java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:146）at java.awt.EventDispatch pumpEvents（EventDispatchThread.java:138），位于java.awt.EventDispatchThread.run（EventDispatchThread.java:91）

剪辑结束后如何添加clip.close() ？

Answer 1

尝试添加finally块以关闭连接

finally { if (clip!= null) { try { clip.close() } catch (Exceptione e) { /* ignored */} }