Question

我正在尝试获取一个mp3文件来播放我的游戏背景音乐。我不知道为什么音乐不播放。以下是错误消息：

Exception in Application start method
java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
    at java.base/java.lang.Thread.run(Thread.java:830)
Caused by: java.lang.IllegalAccessError: class com.sun.media.jfxmediaimpl.NativeMediaManager (in unnamed module @0x6541b3c5) cannot access class com.sun.glass.utils.NativeLibLoader (in module javafx.graphics) because module javafx.graphics does not export com.sun.glass.utils to unnamed module @0x6541b3c5
    at com.sun.media.jfxmediaimpl.NativeMediaManager.lambda$new$0(NativeMediaManager.java:110)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:554)
    at com.sun.media.jfxmediaimpl.NativeMediaManager.<init>(NativeMediaManager.java:107)
    at com.sun.media.jfxmediaimpl.NativeMediaManager$NativeMediaManagerInitializer.<clinit>(NativeMediaManager.java:78)
    at com.sun.media.jfxmediaimpl.NativeMediaManager.getDefaultInstance(NativeMediaManager.java:90)
    at com.sun.media.jfxmedia.MediaManager.canPlayProtocol(MediaManager.java:78)
    at com.sun.media.jfxmedia.locator.Locator.<init>(Locator.java:239)
    at javafx.scene.media.Media.<init>(Media.java:393)
    at Output.MusicOutput.PlayBackground(MusicOutput.java:31)
    at Output.Main.start(Main.java:29)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
    ... 1 more
Exception running application Output.Main

我的代码：

 //OBJECT:
private static Media backMusic;
private static MediaPlayer playBack;

public static void PlayBackground (String music location) {
    backMusic = new Media(Paths.get(musicLocation).toUri().toString());
    playBack = new MediaPlayer(backMusic);
    playBack.play();
}

此方法的调用位置：

@Override
public void start(Stage primaryStage){

    PlayBackground(MUSICFILE[0]);

    window = primaryStage;
    window.setScene(e.getGameMenu());
    window.setTitle("Geometry War - Yuan");
    window.setResizable(false);
    window.initStyle(StageStyle.TRANSPARENT);
    window.show();
}

再说一次，我不知道为什么会这样。我看了很多视频，如何用JavaFX播放音乐，但是它们都和我做类似的事情，没有问题。我是JavaFX的新手，谢谢大家。 **** MUSICFILE [0] ==“ BackgroundMusic.mp3” *****

JavaFX无法播放声音

0 个答案: