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项目场景：
在javafx框架下，在使用Image类通过URL加载视频的时候，出现加载错误。
问题描述
Media media = new Media(URL_MEDIA);
MediaPlayer mediaPlayer = new MediaPlayer(media);
MediaView mediaView = new MediaView(mediaPlayer);
以上代码引起的如下报错：
Exception in Application start method
java.lang.reflect.InvocationTargetExceptionat java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:118)at java.base/java.lang.reflect.Method.invoke(Method.java:580)at javafx.graphics@22.0.1/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464) at javafx.graphics@22.0.1/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364)at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)at java.base/java.lang.reflect.Method.invoke(Method.java:580)at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1147)
Caused by: java.lang.RuntimeException: Exception in Application start methodat javafx.graphics@22.0.1/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:893)at javafx.graphics@22.0.1/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196) at java.base/java.lang.Thread.run(Thread.java:1570)
Caused by: java.lang.IllegalAccessError: class com.sun.media.jfxmedia.locator.Locator (in unnamed module @0x188b3d43) cannot access class com.sun.javafx.PlatformUtil (in module javafx.base) because module javafx.base does not export com.sun.javafx to unnamed module @0x188b3d43at com.sun.media.jfxmedia.locator.Locator.<init>(Locator.java:235)at javafx.scene.media.Media.<init>(Media.java:392)at MyMedia.start(MyMedia.java:25)at javafx.graphics@22.0.1/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:839) at javafx.graphics@22.0.1/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:483)at javafx.graphics@22.0.1/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:456)at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)at javafx.graphics@22.0.1/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:455)at javafx.graphics@22.0.1/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)at javafx.graphics@22.0.1/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)at javafx.graphics@22.0.1/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)... 1 more
Exception running application MyMedia
原因分析：
开始以为是路径原因造成的无法找到视频文件，所以加了throw exception来看，但是发现不是这个问题，是缺少javafx.media造成的无法引用media模块。
解决方案：
最终在launch.json中加上了下属的media模块
"version": "0.2.0","configurations": [{"type": "java","name": "MyMedia","request": "launch","mainClass": "MyMedia","projectName": "java_d2184a8b","vmArgs": "--module-path lib/ --add-modules=javafx.controls,javafx.fxml,javafx.media"},
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