我正在尝试使用 JavaFX 构建一个小型 java 桌面应用程序来输入学生详细信息。在开场场景中我提供了切换到不同场景的按钮。我可以访问其他场景，但包含数据库中所有学生详细信息的 TableView 场景未打开。
这是我的完整错误消息；
javafx.fxml.LoadException:
/H:/Java/Educational%20Centre/target/classes/com/example/educationalcentre/Table.fxml:10
at [email protected]/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2722)
at [email protected]/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1024)
at [email protected]/javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:759)
at [email protected]/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2853)
at [email protected]/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2649)
at [email protected]/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2563)
at [email protected]/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2531)
at com.example.educationalcentre/com.example.educationalcentre.SceneController.switchToTable(SceneController.java:64)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javafx.reflect.Trampoline.invoke(MethodUtil.java:72)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at [email protected]/com.sun.javafx.reflect.MethodUtil.invoke(MethodUtil.java:270)
at [email protected]/com.sun.javafx.fxml.MethodHelper.invoke(MethodHelper.java:84)
at [email protected]/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1853)
at [email protected]/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1726)
at [email protected]/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
at [email protected]/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at [email protected]/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at [email protected]/javafx.event.Event.fireEvent(Event.java:198)
at [email protected]/javafx.scene.Node.fireEvent(Node.java:8944)
at [email protected]/javafx.scene.control.Button.fire(Button.java:203)
at [email protected]/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:207)
at [email protected]/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
at [email protected]/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
at [email protected]/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
at [email protected]/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.b[email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at [email protected]/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at [email protected]/javafx.event.Event.fireEvent(Event.java:198)
at [email protected]/javafx.scene.Scene$MouseHandler.process(Scene.java:3980)
at [email protected]/javafx.scene.Scene.processMouseEvent(Scene.java:1890)
at [email protected]/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2704)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:411)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:301)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:450)
at [email protected]/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:449)
at [email protected]/com.sun.glass.ui.View.handleMouseEvent(View.java:551)
at [email protected]/com.sun.glass.ui.View.notifyMouse(View.java:937)
at [email protected]/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at [email protected]/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:185)
at java.base/java.lang.Thread.run(Thread.java:1623)
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:79)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:484)
at [email protected]/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1022)
... 60 more
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/collections/MappingChange$Map
at [email protected]/javafx.scene.control.TableView$TableViewArrayListSelectionModel.<init>(TableView.java:2249)
at [email protected]/javafx.scene.control.TableView.<init>(TableView.java:669)
at [email protected]/javafx.scene.control.TableView.<init>(TableView.java:646)
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:67)
... 63 more
Caused by: java.lang.ClassNotFoundException: com.sun.javafx.collections.MappingChange$Map
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 67 more
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at [email protected]/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1858)
at [email protected]/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1726)
at [email protected]/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
at [email protected]/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at [email protected]/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at [email protected]/javafx.event.Event.fireEvent(Event.java:198)
at [email protected]/javafx.scene.Node.fireEvent(Node.java:8944)
at javafx.con[email protected]/javafx.scene.control.Button.fire(Button.java:203)
at [email protected]/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:207)
at [email protected]/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
at [email protected]/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
at [email protected]/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
at [email protected]/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
at [email protected]/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at [email protected]/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at [email protected]/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at [email protected]/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at [email protected]/javafx.event.Event.fireEvent(Event.java:198)
at [email protected]/javafx.scene.Scene$MouseHandler.process(Scene.java:3980)
at [email protected]/javafx.scene.Scene.processMouseEvent(Scene.java:1890)
at javafx.graphic[email protected]/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2704)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:411)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:301)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:450)
at [email protected]/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
at [email protected]/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:449)
at [email protected]/com.sun.glass.ui.View.handleMouseEvent(View.java:551)
at [email protected]/com.sun.glass.ui.View.notifyMouse(View.java:937)
at [email protected]/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at [email protected]/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:185)
at java.base/java.lang.Thread.run(Thread.java:1623)
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:119)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javafx.reflect.Trampoline.invoke(MethodUtil.java:72)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at [email protected]/com.sun.javafx.reflect.MethodUtil.invoke(MethodUtil.java:270)
at [email protected]/com.sun.javafx.fxml.MethodHelper.invoke(MethodHelper.java:84)
at [email protected]/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1853)
... 46 more
Caused by: java.lang.RuntimeException: javafx.fxml.LoadException:
/H:/Java/Educational%20Centre/target/classes/com/example/educationalcentre/Table.fxml:10
at com.example.educationalcentre/com.example.educationalcentre.SceneController.switchToTable(SceneController.java:67)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
... 53 more
Caused by: javafx.fxml.LoadException:
/H:/Java/Educational%20Centre/target/classes/com/example/educationalcentre/Table.fxml:10
at [email protected]/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2722)
at [email protected]/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1024)
at [email protected]/javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:759)
at [email protected]/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2853)
at [email protected]/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2649)
at [email protected]/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2563)
at [email protected]/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2531)
at com.example.educationalcentre/com.example.educationalcentre.SceneController.switchToTable(SceneController.java:64)
... 54 more
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:79)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:484)
at [email protected]/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1022)
... 60 more
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/collections/MappingChange$Map
at [email protected]/javafx.scene.control.TableView$TableViewArrayListSelectionModel.<init>(TableView.java:2249)
at [email protected]/javafx.scene.control.TableView.<init>(TableView.java:669)
at ja[email protected]/javafx.scene.control.TableView.<init>(TableView.java:646)
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:67)
... 63 more
Caused by: java.lang.ClassNotFoundException: com.sun.javafx.collections.MappingChange$Map
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 67 more
从堆栈跟踪中很难找出出了什么问题。我建议添加一些代码。
根据我的经验，这可能是因为您没有创建
Controller