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のJavaFX：スレッドの例外「のJavaFXアプリケーションスレッド」java.lang.RuntimeException：にjava.lang.reflect.InvocationTargetException

2016-12-29 16 views
0

私はJavaFXのプロジェクトに取り組んでいると私はしました。このようなエラー：のJavaFX：スレッドの例外「のJavaFXアプリケーションスレッド」java.lang.RuntimeException：にjava.lang.reflect.InvocationTargetException

Logout 
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException 
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774) 
at javafx.fxml.FXMLLoader$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.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:8413) 
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.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$MouseEventNotification.run(GlassViewEventHandler.java:380) 
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:294) 
at java.security.AccessController.doPrivileged(Native Method) 
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:416) 
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389) 
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:415) 
at com.sun.glass.ui.View.handleMouseEvent(View.java:555) 
at com.sun.glass.ui.View.notifyMouse(View.java:937) 
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method) 
at com.sun.glass.ui.gtk.GtkApplication.lambda$null$49(GtkApplication.java:139) 
at java.lang.Thread.run(Thread.java:745) 
Caused by: java.lang.reflect.InvocationTargetException 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71) 
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275) 
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1771) 
... 52 more 
Caused by: java.lang.NullPointerException 
at gn.kahere.car.manager.view.DrawerContentController.logoutAction(DrawerContentController.java:56) 
... 62 more

マイMainApp.java

package gn.kahere.car.manager; 

import java.io.IOException; 

import gn.kahere.car.manager.view.DrawerContentController; 
import gn.kahere.car.manager.view.LoginController; 
import gn.kahere.car.manager.view.RootLayoutController; 
import javafx.application.Application; 
import javafx.fxml.FXMLLoader; 
import javafx.scene.Scene; 
import javafx.scene.layout.AnchorPane; 
import javafx.stage.Stage; 

public class MainApp extends Application { 

    private Stage primaryStage; 
    private AnchorPane rootLayout; 

    @Override 
    public void start(Stage primaryStage) { 
     this.primaryStage = primaryStage; 
     this.primaryStage.setTitle("Car Manager"); 

     // Prevent the window resizing 
     this.primaryStage.setResizable(false); 

     showLogin(); 
    } 

    /** 
    * Show the login page 
    */ 
    public void showLogin() { 
     try { 
      // Load login page 
      FXMLLoader loader = new FXMLLoader(); 
      loader.setLocation(MainApp.class.getResource("view/Login.fxml")); 
      AnchorPane login = (AnchorPane) loader.load(); 

      // Set the scene containing the login page 
      Scene scene = new Scene(login); 
      primaryStage.setScene(scene); 

      // Give the controller access to the main application 
      LoginController controller = loader.getController(); 
      controller.setMainApp(this); 

      // Show the scene 
      primaryStage.show(); 
     } catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    /** 
    * Initializes the root layout 
    */ 
    public void initRootLayout() { 
     try { 
      // Load root layout 
      FXMLLoader loader = new FXMLLoader(); 
      loader.setLocation(MainApp.class.getResource("view/RootLayout.fxml")); 
      rootLayout = (AnchorPane) loader.load(); 

      // Give the controller access to the main application 
      RootLayoutController controller = loader.getController(); 
      controller.setMainApp(this); 

      // Get the DrawerContentController 
      FXMLLoader drawerLoader = new FXMLLoader(); 
      drawerLoader.setLocation(MainApp.class.getResource("view/DrawerContent.fxml")); 
      drawerLoader.load(); // Load the fxml file 
      DrawerContentController drawerController = drawerLoader.getController(); 
      drawerController.setMainApp(this); 

      // Show the scene containing the root layout 
      Scene scene = new Scene(rootLayout); 
      primaryStage.setScene(scene); 
      primaryStage.show(); 
     } catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    public static void main(String[] args) { 
     launch(args); 
    } 
}

マイRootLayoutController.java

package gn.kahere.car.manager.view; 

import java.io.IOException; 

import com.jfoenix.controls.JFXDrawer; 
import com.jfoenix.controls.JFXHamburger; 
import com.jfoenix.transitions.hamburger.HamburgerBasicCloseTransition; 

import gn.kahere.car.manager.MainApp; 
import javafx.fxml.FXML; 
import javafx.fxml.FXMLLoader; 
import javafx.scene.input.MouseEvent; 
import javafx.scene.layout.VBox; 

public class RootLayoutController { 

    // Reference to the main application 
    @SuppressWarnings("unused") 
    private MainApp mainApp; 

    @FXML 
    private JFXHamburger hamburger; 

    @FXML 
    private JFXDrawer drawer; 


    /** 
    * Controller 
    */ 
    public RootLayoutController() { 

    } 

    /** 
    * Initializes the controller class. 
    */ 
    @FXML 
    private void initialize() { 
     try { 
      VBox box = FXMLLoader.load(getClass().getResource("DrawerContent.fxml")); 
      drawer.setSidePane(box); 

      HamburgerBasicCloseTransition burgerTask = new HamburgerBasicCloseTransition(hamburger); 
      burgerTask.setRate(-1); 

      hamburger.addEventHandler(MouseEvent.MOUSE_PRESSED, (e) -> { 
       burgerTask.setRate(burgerTask.getRate() * -1); 
       burgerTask.play(); 

       if(drawer.isShown()) 
        drawer.close(); 
       else 
        drawer.open(); 
      }); 
     } catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    /** 
    * Is called by the main application to give a reference back to itself 
    * 
    * @param mainApp 
    */ 
    public void setMainApp(MainApp mainApp) { 
     this.mainApp = mainApp; 
    } 

}

RootLayout.fxml

<?xml version="1.0" encoding="UTF-8"?> 

<?import com.jfoenix.controls.JFXDrawer?> 
<?import com.jfoenix.controls.JFXHamburger?> 
<?import javafx.scene.Cursor?> 
<?import javafx.scene.effect.DropShadow?> 
<?import javafx.scene.layout.AnchorPane?> 

<AnchorPane prefHeight="700.0" prefWidth="1000.0" stylesheets="@style.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="gn.kahere.car.manager.view.RootLayoutController"> 
    <children> 
     <JFXHamburger fx:id="hamburger" layoutX="946.0" layoutY="24.0" stylesheets="@style.css" AnchorPane.rightAnchor="20.0" AnchorPane.topAnchor="20.0"> 
     <cursor> 
      <Cursor fx:constant="HAND" /> 
     </cursor> 
     </JFXHamburger> 
     <JFXDrawer fx:id="drawer" defaultDrawerSize="200.0" prefHeight="700.0" prefWidth="200.0" stylesheets="@../../../../../../bin/gn/kahere/car/manager/view/style.css" AnchorPane.bottomAnchor="0.0" AnchorPane.topAnchor="0.0"> 
     <effect> 
      <DropShadow /> 
     </effect> 
     </JFXDrawer> 
    </children> 
</AnchorPane>

DrawerContentController.java

package gn.kahere.car.manager.view; 

import gn.kahere.car.manager.MainApp; 
import javafx.fxml.FXML; 

public class DrawerContentController { 

    // Reference to the main application 
    private MainApp mainApp; 


    /** 
    * Controller 
    */ 
    public DrawerContentController() { 

    } 

    @FXML 
    private void initialize() { 
     System.out.println("Drawer"); 
    } 

    @FXML 
    private void homeAction() { 
     System.out.println("Home"); 
    } 

    @FXML 
    private void addCarAction() { 
     System.out.println("Add Car"); 
    } 

    @FXML 
    private void listCarsAction() { 
     System.out.println("List Cars"); 
    } 

    @FXML 
    private void searchAction() { 
     System.out.println("Search"); 
    } 

    @FXML 
    private void agentsAction() { 
     System.out.println("Agents"); 
    } 

    @FXML 
    private void profileAction() { 
     System.out.println("Profile"); 
    } 

    @FXML 
    private void logoutAction() { 
     System.out.println("Logout"); 
     mainApp.showLogin(); 
    } 

    /** 
    * Is called by the main application to give a reference back to itself 
    * 
    * @param mainApp 
    */ 
    public void setMainApp(MainApp mainApp) { 
     this.mainApp = mainApp; 
    } 

}

DrawerContent.fxml

<?xml version="1.0" encoding="UTF-8"?> 

<?import com.jfoenix.controls.JFXButton?> 
<?import java.lang.String?> 
<?import javafx.scene.control.Separator?> 
<?import javafx.scene.image.Image?> 
<?import javafx.scene.image.ImageView?> 
<?import javafx.scene.layout.Pane?> 
<?import javafx.scene.layout.VBox?> 
<?import javafx.scene.text.Font?> 
<?import javafx.scene.text.Text?> 
<?import javafx.scene.text.TextFlow?> 

<VBox maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="700.0" prefWidth="200.0" stylesheets="@style.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="gn.kahere.car.manager.view.DrawerContentController"> 
    <children> 
     <Pane prefHeight="150.0" prefWidth="200.0" styleClass="side-menu-header" stylesheets="@style.css"> 
     <children> 
      <Text fill="WHITE" layoutX="14.0" layoutY="131.0" strokeType="OUTSIDE" strokeWidth="0.0" text="MAMADOU ALIOU DIALLO"> 
       <font> 
        <Font size="12.0" /> 
       </font> 
      </Text> 
      <ImageView fitHeight="62.0" fitWidth="66.0" layoutX="14.0" layoutY="44.0" pickOnBounds="true" preserveRatio="true"> 
       <image> 
        <Image url="@../../../../../../img/user/avatar.png" /> 
       </image> 
      </ImageView> 
     </children> 
     </Pane> 
     <TextFlow prefHeight="18.0" prefWidth="200.0" style="-fx-background-color: #f0f8ff;" styleClass="navigation" stylesheets="@style.css"> 
     <children> 
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="PRINCIPAL NAVIGATION" wrappingWidth="176.49267578125" /> 
     </children> 
     </TextFlow> 
     <JFXButton buttonType="RAISED" onAction="#homeAction" prefHeight="50.0" prefWidth="199.0" style="-fx-background-color: #ff033e;" stylesheets="@style.css" text="HOME" textFill="WHITE"> 
     <font> 
      <Font size="16.0" /> 
     </font> 
     <styleClass> 
      <String fx:value="menu-btn" /> 
      <String fx:value="btn" /> 
     </styleClass> 
     </JFXButton> 
     <Separator prefWidth="200.0" /> 
     <JFXButton buttonType="RAISED" onAction="#addCarAction" prefHeight="50.0" prefWidth="199.0" style="-fx-background-color: #ff033e;" stylesheets="@style.css" text="ADD CAR" textFill="WHITE"> 
     <font> 
      <Font size="16.0" /> 
     </font> 
     <styleClass> 
      <String fx:value="menu-btn" /> 
      <String fx:value="btn" /> 
     </styleClass> 
     </JFXButton> 
     <Separator prefWidth="200.0" /> 
     <JFXButton buttonType="RAISED" layoutX="10.0" layoutY="196.0" onAction="#listCarsAction" prefHeight="50.0" prefWidth="199.0" style="-fx-background-color: #ff033e;" stylesheets="@style.css" text="LIST CARS" textFill="WHITE"> 
     <font> 
      <Font size="16.0" /> 
     </font> 
     <styleClass> 
      <String fx:value="menu-btn" /> 
      <String fx:value="btn" /> 
     </styleClass> 
     </JFXButton> 
     <Separator prefWidth="200.0" /> 
     <JFXButton buttonType="RAISED" layoutX="10.0" layoutY="196.0" onAction="#searchAction" prefHeight="50.0" prefWidth="199.0" style="-fx-background-color: #ff033e;" stylesheets="@style.css" text="SEARCH" textFill="WHITE"> 
     <font> 
      <Font size="16.0" /> 
     </font> 
     <styleClass> 
      <String fx:value="menu-btn" /> 
      <String fx:value="btn" /> 
     </styleClass> 
     </JFXButton> 
     <TextFlow layoutX="10.0" layoutY="160.0" prefHeight="18.0" prefWidth="200.0" style="-fx-background-color: #f0f8ff;" styleClass="navigation" stylesheets="@style.css"> 
     <children> 
      <Text strokeType="OUTSIDE" strokeWidth="0.0" text="MANAGER" wrappingWidth="176.49267578125" /> 
     </children> 
     </TextFlow> 
     <JFXButton buttonType="RAISED" layoutX="10.0" layoutY="196.0" onAction="#agentsAction" prefHeight="50.0" prefWidth="199.0" style="-fx-background-color: #ff033e;" stylesheets="@style.css" text="AGENTS" textFill="WHITE"> 
     <font> 
      <Font size="16.0" /> 
     </font> 
     <styleClass> 
      <String fx:value="menu-btn" /> 
      <String fx:value="btn" /> 
     </styleClass> 
     </JFXButton> 
     <Separator prefWidth="200.0" /> 
     <JFXButton buttonType="RAISED" layoutX="10.0" layoutY="408.0" onAction="#profileAction" prefHeight="50.0" prefWidth="199.0" style="-fx-background-color: #ff033e;" stylesheets="@style.css" text="PROFILE" textFill="WHITE"> 
     <font> 
      <Font size="16.0" /> 
     </font> 
     <styleClass> 
      <String fx:value="menu-btn" /> 
      <String fx:value="btn" /> 
     </styleClass> 
     </JFXButton> 
     <Separator prefWidth="200.0" /> 
     <JFXButton buttonType="RAISED" layoutX="10.0" layoutY="441.0" onAction="#logoutAction" prefHeight="50.0" prefWidth="199.0" style="-fx-background-color: #ff033e;" stylesheets="@style.css" text="LOGOUT" textFill="WHITE"> 
     <font> 
      <Font size="16.0" /> 
     </font> 
     <styleClass> 
      <String fx:value="menu-btn" /> 
      <String fx:value="btn" /> 
     </styleClass> 
     </JFXButton> 
    </children> 
</VBox>

エラーがDefaultContentControllerでログアウトボタンでIをクリックすると、 "ログアウト" のメッセージが表示されて発生しますが、Iそのエラーを理解していない。助けてください。 Thks。 RootLayoutControllerのinitialize()方法で

出典

2016-12-29 orion

答えて

2

あなたの負荷と表示DrawerContent.fxml：もちろん

public class RootLayoutController { 

    // Reference to the main application 
    @SuppressWarnings("unused") 
    private MainApp mainApp; 

    // ... 


    /** 
    * Initializes the controller class. 
    */ 
    @FXML 
    private void initialize() { 
     try { 
      VBox box = FXMLLoader.load(getClass().getResource("DrawerContent.fxml")); 
      drawer.setSidePane(box); 

      // ... 

     } catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    /** 
    * Is called by the main application to give a reference back to itself 
    * 
    * @param mainApp 
    */ 
    public void setMainApp(MainApp mainApp) { 
     this.mainApp = mainApp; 
    } 

}

が、これはDrawerContent.fxmlから作成したビューにリンクされている新しいDrawerContentControllerを作成します。そのコントローラでsetMainApp(...)と呼ぶことはないので、その場合はDrawerContentControllerのmainAppはnullです。したがって、ユーザがLOGOUTボタンを押してハンドラメソッドを呼び出すと、nullポインタ例外が発生します。

mainAppをDrawerContentControllerに初期化する必要があります。明らかに

import java.io.IOException; 

import com.jfoenix.controls.JFXDrawer; 
import com.jfoenix.controls.JFXHamburger; 
import com.jfoenix.transitions.hamburger.HamburgerBasicCloseTransition; 

import gn.kahere.car.manager.MainApp; 
import javafx.fxml.FXML; 
import javafx.fxml.FXMLLoader; 
import javafx.scene.input.MouseEvent; 
import javafx.scene.layout.VBox; 

public class RootLayoutController { 

    // Reference to the main application 

    // @SuppressWarnings("unused") // hmm if it's unused, I probably don't need it... 

    // private MainApp mainApp; 

    private DrawerContentController drawerContentController ; 

    @FXML 
    private JFXHamburger hamburger; 

    @FXML 
    private JFXDrawer drawer; 


    /** 
    * Controller 
    */ 
    public RootLayoutController() { 

    } 

    /** 
    * Initializes the controller class. 
    */ 
    @FXML 
    private void initialize() { 
     try { 
      FXMLLoader drawerContentLoader = new FXMLLoader(getClass().getResource("DrawerContent.fxml")); 
      VBox box = drawerContentLoader.load(); 
      drawer.setSidePane(box); 

      drawerContentController = drawerContentLoader.getController(); 

      HamburgerBasicCloseTransition burgerTask = new HamburgerBasicCloseTransition(hamburger); 
      burgerTask.setRate(-1); 

      hamburger.addEventHandler(MouseEvent.MOUSE_PRESSED, (e) -> { 
       burgerTask.setRate(burgerTask.getRate() * -1); 
       burgerTask.play(); 

       if(drawer.isShown()) 
        drawer.close(); 
       else 
        drawer.open(); 
      }); 
     } catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    /** 
    * Is called by the main application to give a reference back to itself 
    * 
    * @param mainApp 
    */ 
    public void setMainApp(MainApp mainApp) { 
     // this.mainApp = mainApp; 

     // pass the main app to the drawerContentController: 
     drawerContentController.setMainApp(mainApp); 
    } 

}

、あなたはFXMLファイルをロードするあなたのMainAppクラスからすべての冗長なコードを削除することができ、その内容を表示することはありません：あなたがそれを行うことができます（あなたがとにかくことだろうなぜですか？）：

public class MainApp extends Application { 

    private Stage primaryStage; 
    private AnchorPane rootLayout; 

    @Override 
    public void start(Stage primaryStage) { 
     this.primaryStage = primaryStage; 
     this.primaryStage.setTitle("Car Manager"); 

     // Prevent the window resizing 
     this.primaryStage.setResizable(false); 

     showLogin(); 
    } 

    /** 
    * Show the login page 
    */ 
    public void showLogin() { 
     try { 
      // Load login page 
      FXMLLoader loader = new FXMLLoader(); 
      loader.setLocation(MainApp.class.getResource("view/Login.fxml")); 
      AnchorPane login = (AnchorPane) loader.load(); 

      // Set the scene containing the login page 
      Scene scene = new Scene(login); 
      primaryStage.setScene(scene); 

      // Give the controller access to the main application 
      LoginController controller = loader.getController(); 
      controller.setMainApp(this); 

      // Show the scene 
      primaryStage.show(); 
     } catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    /** 
    * Initializes the root layout 
    */ 
    public void initRootLayout() { 
     try { 
      // Load root layout 
      FXMLLoader loader = new FXMLLoader(); 
      loader.setLocation(MainApp.class.getResource("view/RootLayout.fxml")); 
      rootLayout = (AnchorPane) loader.load(); 

      // Give the controller access to the main application 
      RootLayoutController controller = loader.getController(); 
      controller.setMainApp(this); 

      // Get the DrawerContentController 

      // really no point in doing that since you don't display the UI you load... 
      // FXMLLoader drawerLoader = new FXMLLoader(); 
      // drawerLoader.setLocation(MainApp.class.getResource("view/DrawerContent.fxml")); 
      // drawerLoader.load(); // Load the fxml file (and do nothing with it) 
      // DrawerContentController drawerController = drawerLoader.getController(); 
      // drawerController.setMainApp(this); 

      // Show the scene containing the root layout 
      Scene scene = new Scene(rootLayout); 
      primaryStage.setScene(scene); 
      primaryStage.show(); 
     } catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    public static void main(String[] args) { 
     launch(args); 
    } 
}

出典

2016-12-29 03:38:51

+0

James_Dありがとう、あなたは私を救った。 MainControlでDrawerContentControllerを初期化することで、これでクラスを送信できるようになると私は自問しました。しかし私は何も見たことがありませんでした。アドバイスのためのThks。 – orion

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