我有一个问题，我有一个事件处理程序应该执行一些代码，除了代码之外，事件处理程序接受 MouseEvent 并且将调用它的事件是 onMouseClicked 事件，每次我尝试运行我得到的程序一个异常(exception)，如果我删除 MouseEvent 并将其留空或放置任何其他类型的事件(例如 Event 或 ActionEvent)，它会起作用，但这不符合逻辑，而且我需要鼠标事件，因为我将检查在我的鼠标中单击了哪个鼠标按钮代码。我查看了其他有相同问题的人，并且我按照他们的答案做了所有操作，但没有成功。
异常+堆栈跟踪:
javafx.fxml.LoadException: Error resolving onMouseClicked='#maginfyRecord', either the event handler is not in the Namespace or there is an error in the script.
file:/D:/Personal/Projects/Tools/Java/Organizer/dist/run1842687407/Organizer.jar!/organizer/View/DatabaseTables.fxml:195
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2597)
at javafx.fxml.FXMLLoader.access$100(FXMLLoader.java:103)
at javafx.fxml.FXMLLoader$Element.processEventHandlerAttributes(FXMLLoader.java:610)
at javafx.fxml.FXMLLoader$ValueElement.processEndElement(FXMLLoader.java:770)
at javafx.fxml.FXMLLoader.processEndElement(FXMLLoader.java:2823)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2532)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
at organizer.Controller.Main.switchWindow(Main.java:32)
at organizer.Controller.SecurityController.openOrSave(SecurityController.java:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1771)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8411)
at javafx.scene.control.Button.fire(Button.java:185)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
at java.lang.Thread.run(Thread.java:748)
事件处理程序如下:
@FXML
public void magnifyRecord(MouseEvent event) {
if ((event.getButton()== event.BUTTON2)) {
TextArea area = new TextArea();
area.setText(selectedTable.getSelectionModel().getSelectedItem().toString());
JFXPopup popup = new JFXPopup();
popup.setPopupContent(area);
popup.show(selectedTable);
popup.show(selectedTable, event.getX(), event.getY());
}
}
这是这部分的 fxml:
<Tab fx:id="toDoListTab" onSelectionChanged="#switchTab" text="To Do List">
<content>
<StackPane prefHeight="150.0" prefWidth="200.0">
<children>
<TableView fx:id="toDoListTable" prefHeight="200.0" prefWidth="200.0" />
</children>
</StackPane>
</content>
</Tab>
<Tab fx:id="notesTab" onSelectionChanged="#switchTab" text="Notes">
<content>
<StackPane prefHeight="150.0" prefWidth="200.0">
<children>
<TableView fx:id="notesTable" prefHeight="200.0" prefWidth="200.0" />
</children>
</StackPane>
</content>
</Tab>
<Tab fx:id="contactsTab" onSelectionChanged="#switchTab" text="Contacts">
<content>
<StackPane prefHeight="150.0" prefWidth="200.0">
<children>
<TableView fx:id="contactsTable" onMouseClicked="#magnifyRecord" prefHeight="200.0" prefWidth="200.0" />
</children>
</StackPane>
</content>
</Tab>
<Tab fx:id="locationsTab" onSelectionChanged="#switchTab" text="Locations">
<content>
<StackPane prefHeight="150.0" prefWidth="200.0">
<children>
<TableView fx:id="locationsTable" prefHeight="200.0" prefWidth="200.0" />
</children>
</StackPane>
</content>
</Tab>
<Tab fx:id="productsTab" onSelectionChanged="#switchTab" text="Products">
<content>
<StackPane prefHeight="150.0" prefWidth="200.0">
<children>
<TableView fx:id="productsTable" prefHeight="200.0" prefWidth="200.0" />
</children>
</StackPane>
</content>
</Tab>
我尝试完全注释掉代码，没有任何改变，只有当我删除 MouseEvent 或将其替换为任何其他事件时它才有效
我正在使用 Netbeans + JDK 8 + Scene Builder + jfoenix 库
最佳答案
尝试检查您的导入，您一定导入了错误的 MouseEvent。您应该导入
javafx.scene.input.MouseEvent
用于事件处理程序，而不是任何其他 MouseEvent。
关于java - fxml LoadException 仅在使用 MouseEvent 时出现! (Java + 场景生成器)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53464744/