SpringBoot入门系列之JPA mysql

package com.example.web; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class HelloController {   protected static Logger logger=LoggerFactory.getLogger(HelloController.class);   @RequestMapping("/")   public String helloworld(){     logger.debug("访问hello");     return "Hello world!";   }   @RequestMapping("/hello/{name}")   public String helloName(@PathVariable String name){     logger.debug("访问helloName,Name={}",name);     return "Hello "+name;   } }