java—如何使用spring框架从javafx中未分配给它的控制器访问和更改窗格

我的目标是改变我的程序主窗口的中心窗格，由一个控制器通过在不同控制器的按钮上的操作来控制。我知道为了访问主窗口视图，我必须在其他控制器中示例化主窗口控制器，我知道我可以将主控制器类自动连接（注入）到不同的控制器中，但是当我这样做时，我的所有css样式和主菜单都处于非活动状态，如果没有它，当我尝试从mainmenucontroller使用maincontroller时会出现nullpointer异常
我有main.fxml

<?import com.jfoenix.controls.JFXDrawer?>
<?import com.jfoenix.controls.JFXHamburger?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.StackPane?>

<StackPane fx:id="rootPane" prefHeight="720.0" prefWidth="1280.0" styleClass="root" stylesheets="@../style/dark-theme-contrast.css" xmlns="http://javafx.com/javafx/15.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.hrc.backoffice.MainController">
   <children>
      <AnchorPane accessibleRole="MENU_BUTTON" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="720.0" prefWidth="1280.0" styleClass="root" stylesheets="@../style/dark-theme-contrast.css">
         <children>
            <BorderPane prefHeight="720.0" prefWidth="1280.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
               <left>
                  <JFXDrawer fx:id="mainMenuDrawer" alignment="CENTER_LEFT" defaultDrawerSize="220.0" prefWidth="0.0" resizableOnDrag="true" stylesheets="@../style/dark-theme-contrast.css" BorderPane.alignment="TOP_LEFT" />
               </left>
               <center>
                  <AnchorPane fx:id="mainWindowCenterPane" BorderPane.alignment="TOP_LEFT">
                     <children>
                        <JFXHamburger fx:id="mainMenuHamburger" styleClass="jfx-hamburger-icon" stylesheets="@../style/dark-theme-contrast.css" AnchorPane.leftAnchor="10.0" AnchorPane.topAnchor="10.0" />
                     </children>
                  </AnchorPane>
               </center>
            </BorderPane>
         </children>
      </AnchorPane>
   </children>

这是maincontroller.java

public class MainController implements Initializable {

    @FXML
    private StackPane rootPane;

    @FXML
    private JFXDrawer mainMenuDrawer;

    @FXML
    private JFXHamburger mainMenuHamburger;

    @FXML
    private AnchorPane mainWindowCenterPane;

    @Override
    public void initialize(URL location, ResourceBundle resources) {

        try {
            initDrawer();
        } catch (IOException e) {
            e.printStackTrace();
            Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, e);
        }
    }

    private void initDrawer() throws IOException {
        ScrollPane menuScrollpane = FXMLLoader.load(getClass().getResource("/view/mainMenu.fxml"));
        mainMenuDrawer.setSidePane(menuScrollpane);

        HamburgerSlideCloseTransition task = new HamburgerSlideCloseTransition(mainMenuHamburger);
        task.setRate(-1);
        mainMenuHamburger.addEventHandler(MouseEvent.MOUSE_CLICKED, event -> {
            mainMenuDrawer.toggle();
        });

        mainMenuDrawer.setOnDrawerOpening((event) -> {
            task.setRate(task.getRate() * -1);
            task.play();
            mainMenuDrawer.setMinWidth(220);
        });
        mainMenuDrawer.setOnDrawerClosed((event) -> {
            task.setRate(task.getRate() * -1);
            task.play();
            mainMenuDrawer.setMinWidth(0);
        });
    }

    public void setMainWindowCenterPane(AnchorPane mainWindowCenterPane) {
        this.mainWindowCenterPane = mainWindowCenterPane;
    }

}

这里是main-menu.fxml

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

<?import com.jfoenix.controls.JFXButton?>
<?import javafx.scene.control.Accordion?>
<?import javafx.scene.control.ScrollPane?>
<?import javafx.scene.control.TitledPane?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Font?>

<ScrollPane fx:id="mainMenuScrollPane" prefHeight="720.0" prefWidth="220.0" stylesheets="@../style/dark-theme-contrast.css" xmlns="http://javafx.com/javafx/15.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.hrc.backoffice.MainMenuController">
   <content>
      <VBox fx:id="mainMenuVbox" prefHeight="574.0" prefWidth="200.0" stylesheets="@../style/dark-theme-contrast.css">
         <children>
            <Accordion fx:id="mainMenuAccordion" stylesheets="@../style/dark-theme-contrast.css">
               <panes>

                  <TitledPane fx:id="menuProductMenu" alignment="TOP_RIGHT" contentDisplay="RIGHT" expanded="false" nodeOrientation="RIGHT_TO_LEFT" stylesheets="@../style/dark-theme-contrast.css" text="Меню">
                     <graphic>
                        <ImageView fitHeight="25.0" fitWidth="25.0" pickOnBounds="true" preserveRatio="true">
                           <image>
                              <Image url="@../images/028-menu1.png" />
                           </image>
                        </ImageView>
                     </graphic>
                     <content>
                        <VBox prefHeight="100.0" prefWidth="216.0" styleClass="titled-pane" stylesheets="@../style/dark-theme-contrast.css">
                           <children>
                              <JFXButton fx:id="compositeProductMenu" alignment="BASELINE_RIGHT" buttonType="RAISED" onAction="#initCompositeProductMenu" prefHeight="30.0" prefWidth="170.0" text="Блюда" textFill="WHITE">
                                 <font>
                                    <Font size="13.0" />
                                 </font>
                              </JFXButton>
                              <JFXButton fx:id="semifinishedProductMenu" alignment="BASELINE_RIGHT" buttonType="RAISED" layoutX="20.0" layoutY="20.0" prefHeight="30.0" prefWidth="170.0" text="Полуфабрикаты" textFill="WHITE">
                                 <font>
                                    <Font size="13.0" />
                                 </font>
                              </JFXButton>
                              <JFXButton fx:id="compositeProductMenuCategories" alignment="BASELINE_RIGHT" buttonType="RAISED" layoutX="20.0" layoutY="45.0" prefHeight="30.0" prefWidth="170.0" text="Категории блюд" textFill="WHITE">
                                 <font>
                                    <Font size="13.0" />
                                 </font>
                              </JFXButton>
                              <JFXButton fx:id="productModificators" alignment="BASELINE_RIGHT" buttonType="RAISED" layoutX="10.0" layoutY="60.0" prefHeight="30.0" prefWidth="170.0" text="Модификаторы" textFill="WHITE">
                                 <font>
                                    <Font size="13.0" />
                                 </font>
                              </JFXButton>
                           </children>
                        </VBox>
                     </content>
                     <font>
                        <Font name="System Bold Italic" size="14.0" />
                     </font>
                  </TitledPane>

               </panes>
            </Accordion>
         </children>
      </VBox>
   </content>

和mainmenucontroller.java

public class MainMenuController  implements Initializable {

    @FXML
    private ScrollPane mainMenuScrollPane;

    @FXML
    private VBox mainMenuVbox;

    @FXML
    private Accordion mainMenuAccordion;

    @FXML
    private TitledPane menuFinances;

    @FXML
    private TitledPane menuProductMenu;

    @FXML
    private JFXButton compositeProductMenu;

    @FXML
    private JFXButton semifinishedProductMenu;

    @FXML
    private JFXButton compositeProductMenuCategories;

    @FXML
    private JFXButton productModificators;

    @FXML
    private TitledPane menuStock;

    @FXML
    private TitledPane menuProductOperations;

    @FXML
    private TitledPane menuMarketing;

    @FXML
    private TitledPane menuCompany;

    @FXML
    private TitledPane menuStatistics;

    @FXML
    private TitledPane menuSettings;

    MainController mainController;

//    @Autowired
//    public MainMenuController(MainController mainController) {
//        this.mainController = mainController;
//    }

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        initCompositeProductMenu();
//        compositeProductMenu.setOnAction(event -> {
//            try {
//                AnchorPane productMenuPane = FXMLLoader.load(getClass().getResource("/view/product-menu-list.fxml"));
//                mainController.setMainWindowCenterPane(productMenuPane);
//            } catch (IOException e) {
//                e.printStackTrace();
//            }
//        });
    }

    @FXML
    private void initCompositeProductMenu() {

        compositeProductMenu.addEventHandler(ActionEvent.ACTION, event1 -> {
            try {
                AnchorPane productMenuPane = FXMLLoader.load(getClass().getResource("/view/product-menu-list.fxml"));
                mainController.setMainWindowCenterPane(productMenuPane);
            } catch (IOException e) {
                e.printStackTrace();
            }

        });

    }

}

以及要传递到product-menu-list.fxml中主窗口的视图

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

<?import com.jfoenix.controls.JFXTabPane?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Tab?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.AnchorPane?>

<AnchorPane prefHeight="720.0" prefWidth="1200.0" stylesheets="@../style/dark-theme-contrast.css" xmlns="http://javafx.com/javafx/15.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.hrc.backoffice.ProductMenuListController">
   <children>
      <JFXTabPane prefHeight="720.0" prefWidth="1200.0" stylesheets="@../style/dark-theme-contrast.css" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
         <tabs>
            <Tab text="Untitled Tab">
              <content>
                <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
                     <children>
                        <TableView prefHeight="691.2000202824526" prefWidth="1200.0000352125912" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                          <columns>
                            <TableColumn prefWidth="75.0" text="C1" />
                            <TableColumn prefWidth="75.0" text="C2" />
                              <TableColumn prefWidth="75.0" text="C1" />
                              <TableColumn prefWidth="75.0" text="C2" />
                          </columns>
                           <columnResizePolicy>
                              <TableView fx:constant="CONSTRAINED_RESIZE_POLICY" />
                           </columnResizePolicy>
                           <padding>
                              <Insets top="5.0" />
                           </padding>
                        </TableView>
                     </children>
                  </AnchorPane>
              </content>
            </Tab>
            <Tab text="Untitled Tab">
              <content>
                <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
              </content>
            </Tab>
            <Tab text="Untitled Tab">
              <content>
                <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
              </content>
            </Tab>
         </tabs>
      </JFXTabPane>
   </children>
</AnchorPane>

我知道为了访问主窗口视图，我必须在其他控制器中示例化主窗口控制器，我知道我可以将主控制器类自动连接（注入）到不同的控制器中，但是当我这样做时，我的所有css样式和主菜单都处于非活动状态，如果没有它，当我尝试从mainmenucontroller使用maincontroller时，当然会出现nullpointer异常。
我得到了什么 @Autowired // public MainMenuController(MainController mainController) { // this.mainController = mainController; // } 是完全不活动的白色窗口，只有汉堡包小部件可见，但不活动
我错过了什么？？？
项目结构
影响

java—如何使用spring框架从javafx中未分配给它的控制器访问和更改窗格

暂无答案！

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