我试图在javafx中播放一个视频文件，但出现了错误
我的代码（从网站上尝试代码）

package application;  

import javafx.application.Application;  
import javafx.scene.Group;  
import javafx.scene.Scene;  
import javafx.scene.media.Media;  
import javafx.scene.media.MediaPlayer;  
import javafx.scene.media.MediaView;  
import javafx.stage.Stage; 

public class Main extends Application  
{  

    @Override  
    public void start(Stage primaryStage) throws Exception {  

        String path = "src\\Funny.mp4";  

        Media media = new Media(new File(path).toURI().toString());  

        MediaPlayer mediaPlayer = new MediaPlayer(media);  

        MediaView mediaView = new MediaView(mediaPlayer);  

        mediaPlayer.setAutoPlay(true);  

        Group root = new Group();  
        root.getChildren().add(mediaView);  
        Scene scene = new Scene(root,500,400);  
        primaryStage.setScene(scene);  
        primaryStage.setTitle("Playing video");  
        primaryStage.show();  
    }  
    public static void main(String[] args) {  
        launch(args);  
    }  

}

我的错误是：

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$2(LauncherImpl.java:195)
    at java.base/java.lang.Thread.run(Thread.java:835)
Caused by: java.lang.NoClassDefFoundError: javafx/scene/media/Media
    at application.Main.start(Main.java:21)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$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$10(PlatformImpl.java:428)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:389)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$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$3(WinApplication.java:174)
    ... 1 more
Caused by: java.lang.ClassNotFoundException: javafx.scene.media.Media
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 10 more
Exception running application application.Main

到目前为止，我已经尝试了以下方法：
我的普通javafx运行良好
由于错误显示“caused by:java.lang.noclassdeffounderror:javafx/scene/media/media”，我下载了javafx/scene/media/media的jar文件，并在classpath和javafx库中设置了它
通过创建文件示例来检查文件更正，效果很好。
在以前的stackoverflow问题中尝试了其他代码，但错误保持不变。
破解代码并逐个执行，开始从media media=new media获取错误。。。。。。。
感谢您的意见