这是接着上一篇写的，在上一篇的基础上添加

Controller

@RestControllerpublic class HelloController {    @Resource    private HelloService helloService;    @RequestMapping("/hello")    public String hello(){        return "hello";    }    @RequestMapping("/saveUser")    public String user(){        User u = new User();        u.setPassword("1");        u.setUser_name("123");        u.setAge(1);        helloService.saveUser(u);        return "success";    }}

Service

import org.springframework.stereotype.Service;import javax.annotation.Resource;/** * Created by Administrator on 2017/5/27 0027. */@Servicepublic class HelloService {    @Resource    private HelloDao helloDao;    public void saveUser(User u) {        helloDao.save(u);    }}

Dao（接口，实现了CrudRepository<User,Long>）

public interface  HelloDao extends CrudRepository
     
      {}
     

然后运行项目，输入：http://localhost:8080/saveUser

表中会多了

一条记录