我可以使用 springboot-javafx-support 从初级阶段获取根 Pane 吗？

Question

我有一个主页调用 player.fxml 是这样的 BorderPane.Something

<BorderPane xmlns="http://javafx.com/javafx"
            xmlns:fx="http://javafx.com/fxml"
            fx:controller="cn.will.controller.PlayerController"
            fx:id="root"
            prefHeight="670.0" prefWidth="1020.0" stylesheets="@../css/player.css">
    <top>
        <fx:include source="titleBar.fxml"/>
    </top>
    <left>
        <fx:include source="userLeft.fxml"/>
    </left>
    <center>
        <fx:include source="albumDetail.fxml"/>
    </center>
    <bottom>
        <fx:include source="playBar.fxml"/>
    </bottom>
</BorderPane>

在 Main.class 我启动应用程序。

@SpringBootApplication
public class Main extends AbstractJavaFxApplicationSupport implements ApplicationContextAware{

    private static BorderPane root;

    @Autowired
    private ApplicationContext applicationContext;

    public static void main(String[] args) {
        launchApp(Main.class, PlayerView.class, new BlueprintSplashScreen(),args);
    }

    @Override
    public void start(Stage stage) throws Exception {
        super.start(stage);
        stage.getIcons().add(new Image("img/music-icon32.png"));
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
    }

   // ignore this. It's something I tried to meet my requirement.
   //I  try to use         
   //PlayerView view = applicationContext.getBean(PlayerView .class);
   //root = (BorderPane) view.getView();
   //but it throws NullPointerException dor applicationContext, it seems inject fail
    public ApplicationContext getApplicationContext() {
        return applicationContext;
    }
}

我想更改 BorderPane 中的中心内容 dynamically.I 确实需要获取此 BorderPane 以便我可以更改它。顺便说一句，我也使用 Main.showView(xxx.class)，但我只想改变 center.Not 整个阶段。非常感谢先进。

Answer 1

你能post FXML 引用的控制器吗：fx:controller="cn.will.controller.PlayerController"

我认为如果您通过创建一个字段 @FXML BorderPane root;.

在此处设置注释，您可以获得 BorderPane

我不熟悉 javafx-spring-support 库，但是您可以使用 Spring 和 JavaFX，而无需单独的库；我的 POM 中唯一的依赖项是 spring-boot-starter (from Spring Boot 2.0.0.M7):

JAVA:

@SpringBootApplication
public class BootFXApplication {

    public static void main(String[] args) {
        Application.launch(BootFX.class, args);
    }

    @Bean
    protected static Application bootFx() {

        // I declare this bean this way so I can use
        // the static instance stored when JavaFX
        // calls the no-arg 'BootFX' constructor
        // via reflection.

        if (BootFX.instance == null) {
            BootFX.instance = new BootFX();
        }

        return BootFX.instance;
    }

    public static class BootFX extends Application {

        private static BootFX instance;

        private ConfigurableApplicationContext applicationContext;

        public BootFX() {
            BootFX.instance = this;
        }

        @Override
        public void init() throws Exception {

            String[] args = !isNull(getParameters()) ? 
                    getParameters().getRaw().toArray(new String[]{}) : new String[]{};

            applicationContext = new SpringApplicationBuilder(BootFXApplication.class)
                    .run(args);
        }

        @Override
        public void start(Stage primaryStage) throws Exception {

            FXMLLoader loader = new FXMLLoader(Charset.forName("UTF-8"));
            loader.setLocation(new ClassPathResource("fxml/main-pane.fxml").getURL());

            // This is the secret-sauce, have JavaFX get controllers from Spring
            loader.setControllerFactory(applicationContext::getBean);

            primaryStage.setTitle("Spring Boot + JavaFX");
            primaryStage.setScene(new Scene(loader.load()));
            primaryStage.show();
        }

        @Override
        public void stop() throws Exception {
            SpringApplication.exit(applicationContext);
        }
    }


    @Bean
    public MainPaneController getMainController() {
        return new MainPaneController();
    }

}

// You would have this in a separate class, and could mark as
// @Component instead of declaring the MainPaneCtrl bean above
class MainPaneController {

    @FXML
    private BorderPane rootPane;

    public void initialize() {
        System.out.println(rootPane.toString());  // Mess around with your root pane here, i.e. set bindings
    }
}

FXML:

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

<BorderPane fx:id="rootPane" xmlns:fx="http://javafx.com/fxml/1"
    fx:controller="com.hypersonicgoat.bootfx.MainPaneController"/>

我借鉴了这位才华横溢的开发人员的概念；一定要查看他的博客以获取更多信息：http://www.greggbolinger.com/let-spring-be-your-javafx-controller-factory

Answer 2

我更熟悉 spring.By 使用 springboot-javafx-support 注释 @FXMLView 当我想要时，视图已经注册到 spring bean factory.So使用视图只是使用它。使用@Autowire @Resources 将视图注入到您可以获取视图的位置并调用 getView() 方法来获取根窗格。

我可以使用 springboot-javafx-support 从初级阶段获取根 Pane 吗？

Can I get the root Pane from the primary stage using springboot-javafx-support?

java

javafx-8

spring-boot