自定义SpringApplication

package com.example;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class Application {
@RequestMapping("/")
public String greeting1() {
return "一个伟大的spring-boot诞生了！！！";
}

public static void main(String[] args) {
//SpringApplication.run(Application.class, args);
SpringApplication app=new SpringApplication(Application.class);
app.setShowBanner(false);
app.run(args);

}
}