package com.bjsxt.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import java.util.HashMap; import java.util.Map; /** * SpringBoot HelloWorld * @author beck zhai * @create 2020-02-01-15:49 */ @Controller public class HelloWorld { @RequestMapping("/hello") @ResponseBody public Map<String, Object> showHelloWorld() { Map<String, Object> map = new HashMap<>(); map.put("msg", "HelloWorld"); return map; } }
package com.bjsxt; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; /** * SpringBoot 启动类 * @author beck zhai * @create 2020-02-01-16:02 */ @SpringBootApplication public class App { public static void main(String[] args) { SpringApplication.run(App.class, args); } }
1. 启动器存放的位置,启动器可以和controller位于同一个包下,或者位于controller的上一级包中,但是不能放在controller的评级以及子包下
2. 8080端口被占用,配置application.yml文件,修改端口为8090
SpringBoot入门基础:编写HelloWorld(三)
原文:https://www.cnblogs.com/my_captain/p/12248906.html