spring boot 1.5.7入门hello word里面包含访问页面，和默认访问端口修改。

package com.example.demo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @SpringBootApplication @Controller public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } @RequestMapping(value="/index") public String index(){ return "index"; } }