（三）创建基于maven的javaFX+springboot项目创建

创建基于maven的javaFx+springboot项目有两种方式，第一种为通过非编码的方式来设计UI集成springboot；第二种为分离用户界面（UI）和后端逻辑集成springboot，其中用户界面为fxml文件。

maven依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
            <version>${spring.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>${spring.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>de.roskenet</groupId>
            <artifactId>springboot-javafx-support</artifactId>
            <version>${springboot-javafx-support.version}</version>
        </dependency>    

创建StartMain类，并继承Application

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;

import java.util.Objects;
import java.util.function.Consumer;

/**
 *  maven构建JavaFX项目启动类
 */
public class StartMain extends Application implements CommandLineRunner, Consumer<Stage> {

    /**
     * 窗口启动接口，原理：
     * 1. run(String... args)中给springStartMain赋值
     * 2. start(Stage primaryStage)中调用了springStartMain来操作primaryStage
     * 3. 而springStartMain实际上是spring管理的StartMain一个对象，因此accept方法中可以操作spring管理的任何对象
     */
    private static Consumer<Stage> springStartMain;
    private final Button btnStart = new Button("开 始");

    @Override
    public void accept(Stage stage) {

        final GridPane gridPane = new GridPane();
        gridPane.setPrefWidth(700);
        gridPane.setPadding(new Insets(10, 10, 10, 10));
        gridPane.setVgap(10);
        gridPane.setHgap(10);
        btnStart.setStyle("-fx-padding: 10;-fx-end-margin:20;");
        HBox hBox1 = new HBox();
        hBox1.getChildren().addAll(btnStart);
        hBox1.setSpacing(20);
        gridPane.addRow(2, new Label(), hBox1);
        //页面
        Group root = new Group();
        Scene scene = new Scene(root, 720, 500);
        scene.setRoot(gridPane);

        //设置标题
        stage.setTitle("Hello World");
        //stage的标题将会是hello
        stage.setScene(scene);
        stage.show();
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
        springStartMain.accept(primaryStage);
    }

    @Override
    public void run(String... args) throws Exception {
        springStartMain = Objects.requireNonNull(this);
    }

    public static void main(String[] args) {
        //启动spring-boot
        SpringApplication.run(StartMain.class, args);
        //启动窗口
        Application.launch(args);
    }

}

项目结构如下：