Spring Boot 启动时报告错误：优雅地向用户展示错误信息

import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;

import javax.swing.*;
import java.awt.*;

@SpringBootApplication
public class DemoSbSwingApplication extends JFrame {

    public static void main(String[] args) {
        var ctx = new SpringApplicationBuilder(DemoSbSwingApplication.class)
                .headless(false)
                .run(args);
        EventQueue.invokeLater(() -> {
            var ex = ctx.getBean(DemoSbSwingApplication.class);
            ex.setVisible(true);
        });
    }

    public DemoSbSwingApplication() {
        var pane = getContentPane();
        JOptionPane.showMessageDialog(pane, "应用程序启动失败！请检查配置或数据库连接。");
    }

}

public DemoSbSwingApplication() {
    var pane = getContentPane();
    try {
        // 模拟启动失败
        throw new RuntimeException("模拟数据库连接失败");
    } catch (Exception e) {
        JOptionPane.showMessageDialog(pane, "应用程序启动失败！\n错误信息：" + e.getMessage(), "错误", JOptionPane.ERROR_MESSAGE);
    }
}

<dependency>
    <groupId>org.swinglabs</groupId>
    <artifactId>swingx</artifactId>
    <version>1.6.1</version>
</dependency>