1 package com.example.app01.demo.api;
 2 
 3 import org.springframework.stereotype.Controller;
 4 import org.springframework.ui.Model;
 5 import org.springframework.web.bind.annotation.GetMapping;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.RequestParam;
 8 import org.springframework.web.bind.annotation.RestController;
 9 
10 @RestController
11 public class HelloController {
12     @RequestMapping("/")
13     public String index() {
14         return "Greetings from Spring Boot!";
15     }
16     @RequestMapping("/hello")
17     public String hello(){
18         return "hello world.";
19     }
20     @GetMapping("/greeting")
21     public String greeting( ) {
22 
23         return "greeting";
24     }
25 }