Application入口改造

实现接口CommandLineRunner，并且重写run()方法，便可以在springboot启动时同时运行一段方法，

import javafx.application.Application;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class TestApplication implements CommandLineRunner {

    public static void main(String[] args) {
        SpringApplication.run(TestApplication .class, args);
    }

    @Override
    public void run(String... args) throws Exception {
        Application.launch(MainApp.class, args);
    }
}

创建窗体程序

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;

public class MainApp extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception {
        AnchorPane anchorPane=new AnchorPane();
        Scene scene=new Scene(anchorPane, 200, 150);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

}

运行效果