package com.imooc.myspringboot.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

public class MyController {
   @RequestMapping("/out")
   @ResponseBody
   public String out(){
       return "success";
   }


}

package com.imooc.myspringboot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

//说明这是SpringBoot应用的入口类
@SpringBootApplication
public class MySpringBootApplication {
   public static void main(String[] args){
       //启动SpringBoot应用
       SpringApplication.run(MySpringBootApplication.class);
   }
}