JavaFX OnMouseClick

在JavaFX开发环境中，遇到一些坑是难免的，而且资料少得可怜！

先说一下我遇到的问题 :

只是一个点击事件而已 :

首先我有这么个界面 :

接下来呢 ? 我需要点击右上角的X，然后显示遮罩，弹出对话框。

@FXML

    public void exitApp(ActionEvent event) {

        mask.setVisible(true);

        alertMessage.setVisible(true);

    }

XML控件:

<Pane fx:id="exitmask" layoutX="1146.0" layoutY="0.0" onMouseClicked="#exitApp" prefHeight="54.0" prefWidth="54.000099999997474" styleClass="hover-canlen">      <stylesheets>        <URL value="@Menu.css" />      </stylesheets>    </Pane>

Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at sun.reflect.misc.Trampoline.invoke(Unknown Source)

    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at sun.reflect.misc.MethodUtil.invoke(Unknown Source)

    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)

    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.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$ClickGenerator.postProcess(Scene.java:3470)

    at javafx.scene.Scene$ClickGenerator.access$8100(Scene.java:3398)

    at javafx.scene.Scene$MouseHandler.process(Scene.java:3766)

    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(Unknown Source)

编译器总是那么不留情面，还好我有百度 :

https://blog.csdn.net/strazhang/article/details/55281948

网上的答案:

改成onAction:

<Pane fx:id="exitmask" layoutX="1146.0" layoutY="0.0" onAction="#exitApp" prefHeight="54.0" prefWidth="54.000099999997474" styleClass="hover-canlen">      <stylesheets>        <URL value="@Menu.css" />      </stylesheets>    </Pane>

运行 :

javafx.fxml.LoadException:

/D:/JavaProject/FX/OA/bin/oa/view/Menu.fxml:69

    at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)

    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)

    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 oa.main.MainApp.start(MainApp.java:21)

    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863)

    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)

    at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)

    at java.security.AccessController.doPrivileged(Native Method)

    at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)

    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)

    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(Unknown Source)

Caused by: java.lang.UnsupportedOperationException: Cannot determine type for property.

    at com.sun.javafx.fxml.BeanAdapter.getSetterMethod(BeanAdapter.java:177)

    at com.sun.javafx.fxml.BeanAdapter.put(BeanAdapter.java:250)

    at javafx.fxml.FXMLLoader$Element.processEventHandlerAttributes(FXMLLoader.java:618)

    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)

    ... 17 more

最后找了半天 :

StackOverflow才是正解！

Controller里面对应点击事件的ActionEvent改成onMouseEvent！

这才说得过去嘛！

https://stackoverflow.com/questions/22935474/textfield-events-in-java-fx

Make sure the parameter type for processEnter(...) is MouseEvent, and that you have the correct import in the controller: javafx.scene.input.MouseEvent, not the awt version.

巴特西

JavaFX OnMouseClick

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