JavaFX-包含带有事件的fxml

我目前正试图用JavaFX实现一个非常基本的应用程序，只是为了做一些测试。这里的最终目标是实现一个分为几个部分的接口，每个部分都有自己的.fxm和控制器

首先，我尝试使用此体系结构开发一个基本应用程序：

我有一个主VueGlobale.fxml文件，其中包括另一个.fxml文件clavier.fxml：

VueGlobale.fxml

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

<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.VBox?>

<VBox
maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="529.0" xmlns="http://javafx.com/javafx/8.0.121" xmlns:fx="http://javafx.com/fxml/1">
   <children>
        <fx:include source="clavier.fxml" fx:id="clavier" />
   </children>
</VBox>

<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.AnchorPane?>

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.141" xmlns:fx="http://javafx.com/fxml/1" fx:controller="controllers.ClavierController">
   <children>
      <Button layoutX="274.0" layoutY="188.0" mnemonicParsing="false" onAction="#ajouterDo" text="Button" />
   </children>
</AnchorPane>

<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.VBox?>
<VBox
maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="529.0" xmlns="http://javafx.com/javafx/8.0.121" xmlns:fx="http://javafx.com/fxml/1">
   <children>
        <fx:include source="viewtop.fxml" fx:id="top" />
   </children>
<children>
        <fx:include source="clavier.fxml" fx:id="clavier" />
   </children>
<children>
        <fx:include source="viewbottom.fxml" fx:id="bottom" />
   </children>
</VBox>

型号 包装模型； 公共类模型{

public void doSomething() {
    System.out.println("Model !");
}

}

Main

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        FXMLLoader loader = new FXMLLoader();
        loader.setLocation(getClass().getResource("views/VueGlobale.fxml"));

        Parent root = loader.load();
        primaryStage.setTitle("Test");
        primaryStage.setScene(new Scene(root, 300, 275));
        primaryStage.show();
    }

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

问题是：我不知道在我的main中应该做什么，这样我就可以给我的clavier.fxml一个ClavierController（m型）。（它使用的控制器没有参数，但如果我需要精确的参数怎么办？）

这是StackTrace，如果它能帮助您：

Exception in Application start method
java.lang.reflect.InvocationTargetException
    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 com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
    at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
    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.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
    at java.lang.Thread.run(Unknown Source)
Caused by: javafx.fxml.LoadException: 
/J:/Programming/Telecom%20Nancy/S3/Test/bin/views/clavier.fxml:6
/J:/Programming/Telecom%20Nancy/S3/Test/bin/views/VueGlobale.fxml:9

    at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
    at javafx.fxml.FXMLLoader.access$700(FXMLLoader.java:103)
    at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:932)
    at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(FXMLLoader.java:971)
    at javafx.fxml.FXMLLoader$Element.processStartElement(FXMLLoader.java:220)
    at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:744)
    at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2707)
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2527)
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
    at javafx.fxml.FXMLLoader.access$2700(FXMLLoader.java:103)
    at javafx.fxml.FXMLLoader$IncludeElement.constructValue(FXMLLoader.java:1143)
    at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:746)
    at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2707)
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2527)
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
    at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)
    at Main.start(Main.java:14)
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
    at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
    ... 1 more
Caused by: java.lang.InstantiationException: controllers.ClavierController
    at java.lang.Class.newInstance(Unknown Source)
    at sun.reflect.misc.ReflectUtil.newInstance(Unknown Source)
    at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:927)
    ... 23 more
Caused by: java.lang.NoSuchMethodException: controllers.ClavierController.<init>()
    at java.lang.Class.getConstructor0(Unknown Source)
    ... 26 more
Exception running application Main

---

controllerFactory

与任何其他属性一样是一个属性。如果您设置了它的值，它就具有该值，因此在连续的三行代码中将其值设置为三个不同的值是没有意义的

您可以创建一个控制器工厂，该工厂只需检查参数并返回适当的控制器：

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        Model m = new Model();

        FXMLLoader loader = new FXMLLoader();
        loader.setLocation(getClass().getResource("views/VueGlobale.fxml"));
        loader.setControllerFactory(ic -> {
            if (ic == ClavierController.class) {
                return new ClavierController(m);
            } else if (ic == TopController.class) {
                return new TopController(m);
            } else if (ic == BottomController.class) {
                return new BottomController(m) ;
            }
            throw new IllegalArgumentException("Unexpected controller type: "+ic.getName());
        });

        Parent root = loader.load();
        primaryStage.setTitle("Test");
        primaryStage.setScene(new Scene(root, 300, 275));
        primaryStage.show();
    }

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

您还可以使用反射来实现逻辑，如“如果提供的控制器类有一个采用模型的构造函数，则调用该构造函数并传入模型，否则调用默认构造函数”：

现在为这个FXML文件定义一个“主”控制器：

public class MainController {

    @FXML
    private Parent top ;
    @FXML
    private Parent clavier ;
    @FXML
    private Parent bottom ;

    @FXML
    private TopController topController ;
    @FXML
    private ClavierController clavierController ;
    @FXML
    private BottomController bottomController ;

    private final Model model ;

    public MainController(Model model) {
        this.model = model ;
    }

    @FXML
    public void initialize() {
        topController.setModel(model);
        clavierController.setModel(model);
        bottomController.setModel(model);
    }

    // ...
}

只需使用设置模型的适当方法定义“嵌套”控制器：

public class TopController {

    private Model model ;

    public void setModel(Model model) {
        this.model = model ;
    }

    @FXML
    private void someHandlerMethod(ActionEvent event) {
        model.doSomething();
    }
}

最后，在主fxml中加载以下内容：

Model model = new Model();
FXMLLoader loader = new FXMLLoader(getClass().getResource("/path/to/fxml"));
loader.setController(new MainController(model));
Parent root = loader.load();

这一切都应该很顺利。

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

    <?import com.jfoenix.controls.*?>
    <?import java.lang.*?>
    <?import javafx.scene.layout.*?>
    <?import javafx.scene.layout.AnchorPane?>

    <AnchorPane fx:id="buttonPane" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="30.0" prefWidth="700.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.everest.amcu.ButtonPaneController">
        <children>
            <HBox fx:id="hboxButton" alignment="CENTER_LEFT" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" spacing="5.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                <children>
                    <JFXButton fx:id="btnAdd" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Add" HBox.hgrow="ALWAYS" />
                    <JFXButton fx:id="btnEdit" layoutX="10.0" layoutY="10.0" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Edit" HBox.hgrow="ALWAYS" />
                    <JFXButton fx:id="btnDelete" layoutX="62.0" layoutY="10.0" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Delete" HBox.hgrow="ALWAYS" />
                    <JFXButton fx:id="btnClose" layoutX="114.0" layoutY="10.0" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Close" HBox.hgrow="ALWAYS" />
                </children>
            </HBox>
        </children>
    </AnchorPane>



    PaneOne.fxml
    ---------------    
            <?xml version="1.0" encoding="UTF-8"?>
                      <?import javafx.scene.layout.AnchorPane?>
                      <AnchorPane xmlns:fx="http://javafx.com/fxml/1"       fx:controller="com.everest.amcu.PaneOneController">     
             <fx:include source="ButtonPane.fxml" fx:id="buttonPane" /> </AnchorPane>

ButtonPaneController
--------------------

import java.net.URL;
import java.util.ResourceBundle;
import com.jfoenix.controls.JFXButton;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.HBox;

public class ButtonPaneController implements Initializable {

    @FXML
    public JFXButton btnClose;

    @FXML
    public JFXButton btnDelete;

    @FXML
    public JFXButton btnAdd;

    @FXML
    public JFXButton btnEdit;

    @FXML
    private AnchorPane buttonPane;

    @FXML
    private HBox hboxButton;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        btnClose.setOnAction(event -> {
            System.out.println("In Button Pane");
        });
        btnAdd.setOnAction(event -> {
            System.out.println("In Button Pane");
        });
    }

    public void hideButton(JFXButton... jfxButton) {
        for (int i = 0; i < jfxButton.length; i++) {
            hboxButton.getChildren().remove(jfxButton[i]);
        }
    }

}

PaneOneController
------------------
import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;

public class PaneOneController implements Initializable {

    @FXML
    ButtonPaneController buttonPaneController;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        buttonPaneController.btnAdd.setOnAction(event -> {
            System.out.println("In Pane One");
        });
    }
}

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.stage.Stage;
import javafx.stage.StageStyle;

public class Main extends Application {

    public static Stage primaryStage;
    public static Label lblTitle;

    @Override
    public void start(Stage primaryStage) {
        try {
            Main.primaryStage = primaryStage;
            Parent root = FXMLLoader.load(Main.class.getResource("view/PaneOne.fxml"));
            Scene scene = new Scene(root);
            scene.getStylesheets().add(Main.class.getResource("view/css/application.css").toExternalForm());
            primaryStage.setScene(scene);
            primaryStage.initStyle(StageStyle.UNDECORATED);
            primaryStage.show();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

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

----------------
PaneOne.fxml
---------------    
按钮控制器
--------------------
导入java.net.URL；
导入java.util.ResourceBundle；
导入com.jfoenix.controls.JFXButton；
导入javafx.fxml.fxml；
导入javafx.fxml.Initializable；
导入javafx.scene.layout.ancorpane；
导入javafx.scene.layout.HBox；
公共类ButtonPaneController实现可初始化{
@FXML
公共jfx按钮btnClose；
@FXML
公共jfx按钮btnDelete；
@FXML
公共jfx按钮btnAdd；
@FXML
公共jfx按钮btnEdit；
@FXML
私人锚烷按钮；
@FXML
专用HBox按钮；
@凌驾
公共void初始化（URL位置、ResourceBundle资源）{
btnClose.setOnAction（事件->{
System.out.println（“In按钮窗格”）；
});
btnAdd.setOnAction（事件->{
System.out.println（“In按钮窗格”）；
});
}
公共无效隐藏按钮（JFXButton…JFXButton）{
对于（int i=0；i{
System.out.println（“窗格一”）；
});
}
}
导入javafx.application.application；
导入javafx.fxml.fxmloader；
导入javafx.scene.Parent；
导入javafx.scene.scene；
导入javafx.scene.control.Label；
导入javafx.stage.stage；
导入javafx.stage.StageStyle；
公共类主扩展应用程序{
公共静态阶段初级阶段；
公共静态标签lblTitle；
@凌驾
公共无效开始（阶段primaryStage）{
试一试{
Main.primaryStage=primaryStage；
父根=fxmloader.load（Main.class.getResource（“view/PaneOne.fxml”）；
场景=新场景（根）；
scene.getStylesheets（）.add（Main.class.getResource（“view/css/application.css”）.toExternalForm（））；
初级阶段。场景（场景）；
初级阶段。初始风格（阶段风格。未装饰）；
primaryStage.show（）；
}捕获（例外e）{
e、 printStackTrace（）；
}
}
公共静态void main（字符串[]args）{
发射（args）；
}
}

执行此操作的步骤：

创建ButtonPane.fxml并声明锚定窗格的id和所有 按钮

使用
，重要的是当您包含fxml时必须 声明id与ButtonPane.fxml的锚定窗格id相同

为初始化变量创建ButtonPaneController

创建PaneonController并使用 @FXML注释

运行程序，它与按钮的动作事件工作良好

---

您发布的代码无法编译。即使您告诉我们什么是

model

，在

ClavierController

中也没有构造函数，只有默认构造函数。即使您解决了这个问题，也可能存在其他问题，因为您希望第一个FXML使用

VueGlobaleController

，但控制器工厂返回的是

ClavierController

，您好，谢谢您的回答，这对该型号来说是正确的，我在这里发布之前已经修改了代码，我忘记了更改这部分。好的，我明白你的意思，但是我应该在主体中放些什么，这样才能影响到这一事件？（因为即使我将ClavierController更改为VueGlobaleController，我仍然会收到相同的错误消息）因此，您可以修复它吗？这里的任何人都不可能区分您在实际代码中犯下的错误（导致异常的错误-您应该发布c

public class TopController {

    private Model model ;

    public void setModel(Model model) {
        this.model = model ;
    }

    @FXML
    private void someHandlerMethod(ActionEvent event) {
        model.doSomething();
    }
}

Model model = new Model();
FXMLLoader loader = new FXMLLoader(getClass().getResource("/path/to/fxml"));
loader.setController(new MainController(model));
Parent root = loader.load();

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

    <?import com.jfoenix.controls.*?>
    <?import java.lang.*?>
    <?import javafx.scene.layout.*?>
    <?import javafx.scene.layout.AnchorPane?>

    <AnchorPane fx:id="buttonPane" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="30.0" prefWidth="700.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.everest.amcu.ButtonPaneController">
        <children>
            <HBox fx:id="hboxButton" alignment="CENTER_LEFT" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" spacing="5.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                <children>
                    <JFXButton fx:id="btnAdd" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Add" HBox.hgrow="ALWAYS" />
                    <JFXButton fx:id="btnEdit" layoutX="10.0" layoutY="10.0" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Edit" HBox.hgrow="ALWAYS" />
                    <JFXButton fx:id="btnDelete" layoutX="62.0" layoutY="10.0" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Delete" HBox.hgrow="ALWAYS" />
                    <JFXButton fx:id="btnClose" layoutX="114.0" layoutY="10.0" maxHeight="1.7976931348623157E308" maxWidth="100.0" prefWidth="50.0" text="Close" HBox.hgrow="ALWAYS" />
                </children>
            </HBox>
        </children>
    </AnchorPane>



    PaneOne.fxml
    ---------------    
            <?xml version="1.0" encoding="UTF-8"?>
                      <?import javafx.scene.layout.AnchorPane?>
                      <AnchorPane xmlns:fx="http://javafx.com/fxml/1"       fx:controller="com.everest.amcu.PaneOneController">     
             <fx:include source="ButtonPane.fxml" fx:id="buttonPane" /> </AnchorPane>

ButtonPaneController
--------------------

import java.net.URL;
import java.util.ResourceBundle;
import com.jfoenix.controls.JFXButton;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.HBox;

public class ButtonPaneController implements Initializable {

    @FXML
    public JFXButton btnClose;

    @FXML
    public JFXButton btnDelete;

    @FXML
    public JFXButton btnAdd;

    @FXML
    public JFXButton btnEdit;

    @FXML
    private AnchorPane buttonPane;

    @FXML
    private HBox hboxButton;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        btnClose.setOnAction(event -> {
            System.out.println("In Button Pane");
        });
        btnAdd.setOnAction(event -> {
            System.out.println("In Button Pane");
        });
    }

    public void hideButton(JFXButton... jfxButton) {
        for (int i = 0; i < jfxButton.length; i++) {
            hboxButton.getChildren().remove(jfxButton[i]);
        }
    }

}

PaneOneController
------------------
import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;

public class PaneOneController implements Initializable {

    @FXML
    ButtonPaneController buttonPaneController;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        buttonPaneController.btnAdd.setOnAction(event -> {
            System.out.println("In Pane One");
        });
    }
}

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.stage.Stage;
import javafx.stage.StageStyle;

public class Main extends Application {

    public static Stage primaryStage;
    public static Label lblTitle;

    @Override
    public void start(Stage primaryStage) {
        try {
            Main.primaryStage = primaryStage;
            Parent root = FXMLLoader.load(Main.class.getResource("view/PaneOne.fxml"));
            Scene scene = new Scene(root);
            scene.getStylesheets().add(Main.class.getResource("view/css/application.css").toExternalForm());
            primaryStage.setScene(scene);
            primaryStage.initStyle(StageStyle.UNDECORATED);
            primaryStage.show();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

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