JavaFx事件参数类型不匹配

我第一次使用JavaFx，遇到了事件问题。 我使用SceneBuilder构建了一个表单，并在.fxml和controller上添加了一个事件，但它始终返回：

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

FirstScene.fxml：

FirstSceneController.java：

 public class FirstSceneController implements Initializable { @FXML private Button firstScene_newbutton; @FXML private TableView firstScene_tableView; /** * Initializes the controller class. */ @Override public void initialize(URL url, ResourceBundle rb) { } @FXML private void newButtonClick(ActionEvent event) { System.out.println("You clicked me!"); } } 

JavaFxApplication.java：

 public class JavaFXApplication extends Application { private Stage stage; @Override public void start(Stage primaryStage) { this.stage = primaryStage; try { FirstScene(); primaryStage.setTitle("FXML is Simple"); primaryStage.show(); } catch (IOException ex) { Logger.getLogger(JavaFXApplication.class.getName()).log(Level.SEVERE, null, ex); } } public void FirstScene() throws IOException { AnchorPane page = (AnchorPane) FXMLLoader.load(JavaFXApplication.class.getResource("FirstScene.fxml")); Scene scene = new Scene(page); stage.setScene(scene); } } 

例外：

 Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch 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:483) 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:483) at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275) at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1757) at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1645) 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:54) at javafx.event.Event.fireEvent(Event.java:198) at javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3437) at javafx.scene.Scene$ClickGenerator.access$7900(Scene.java:3365) at javafx.scene.Scene$MouseHandler.process(Scene.java:3733) at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3452) at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1728) at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2461) at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:348) at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:273) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:382) at com.sun.glass.ui.View.handleMouseEvent(View.java:553) at com.sun.glass.ui.View.notifyMouse(View.java:925) at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at com.sun.glass.ui.win.WinApplication.lambda$null$141(WinApplication.java:102) at com.sun.glass.ui.win.WinApplication$$Lambda$38/14271771.run(Unknown Source) at java.lang.Thread.run(Thread.java:745) 

我真的很感激任何帮助。

Answer 1

使用onAction="#newButtonClick" ，而不是onMouseClicked 。

Answer 2

尝试使用KeyEvent而不是ActionEvent

 @FXML private void newButtonClick(KeyEvent event) { ...}