@SpringBootApplication
public class DragonflyApplication extends SpringBootServletInitializer implements EmbeddedServletContainerCustomizer {
    public static void main(String[] args) {
        SpringApplication.run(DragonflyApplication.class, args);
    }

    @Override
    public void customize(ConfigurableEmbeddedServletContainer configurableEmbeddedServletContainer) {
        configurableEmbeddedServletContainer.setPort(10087);
    }
}