@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        ApplicationContext ctx = SpringApplication.run(Application.class, args);

        System.out.println("Let's inspect the beans provided by Spring Boot:");

    }
}

@Controller
public class GreetingController {
    @GetMapping("/greeting")
    public String greeting(@RequestParam(name = "name", required = false, defaultValue = "World") String name,
            Model model) {
        model.addAttribute("name", name);
        return "greeting";
    }
}