3.使用springboot框架的核心配置文件application.properties（springboot-003-context-path）

package com.powernode.springboot.web;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;@Controllerpublic class IndexController { @RequestMapping(value="/say") public @ResponseBody String say(){ return "say:Hello Springboot!"; } @RequestMapping(value="/mapvalue") @ResponseBody public Map mapvalue(){ Map retMap = new HashMap(); retMap.put("message","Springboot Project!"); return retMap; }}