Maven SpringMVC Mybatis Mysql

package com.lin.controller; import javax.annotation.Resource; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; import com.lin.domain.User; import com.lin.service.UserService; @Controller public class UserController { @Resource private UserService userService; @RequestMapping(value = "/", method = RequestMethod.GET) public ModelAndView getIndex(){ ModelAndView mav = new ModelAndView("index"); User user = userService.selectUserById(1); mav.addObject("user", user); return mav; } @RequestMapping(value = "/insert", method = RequestMethod.GET) public @ResponseBody String Insert(){ User user = new User(); user.setAge((byte)21); user.setName("ggg4"); user.setSex("男"); user.setTel("123455"); int iret = userService.insertSelective(user); if(iret > 0) return "hfhfh"; else return "gfgfg"; } @RequestMapping(value = "/index1", method = RequestMethod.GET) public @ResponseBody String Index1(){ User user = new User(); user.setAge((byte)21); user.setName("ggg4"); user.setSex("男"); user.setTel("123455"); int iret = userService.insertSelective(user); if(iret > 0) return "hfhfh"; else return "gfgfg"; } }