springboot（三 单独将controller放一个包下）

springboot的入口

package com.example;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.builder.SpringApplicationBuilder;import org.springframework.boot.web.support.SpringBootServletInitializer;import org.springframework.context.annotation.Configuration;@SpringBootApplicationpublic class DatasourcesApplication {public static void main(String[] args) {SpringApplication.run(DatasourcesApplication.class, args);}}

controller类

package com.example.controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class Hello {//连一个数据库@RequestMapping(value="/hello")//@ResponseBody public String data1(){ System.err.println("进入controller"); return "hello"; }}

 这里需要注意  这两个位置 contrller在入口包里或者包下，否则访问不了