狂神说SpringBoot笔记之编写一个http接口

编写一个http接口

1、1、在主程序的同级目录下，新建一个controller包，一定要在同级目录下，否则识别不到

2、代码

 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 }

3、运行

4、效果