SSM框架的CURD，替换之前的实体类为map

package com.tu.controller; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; import com.tu.service.UserService; @Controller public class UserController { @Resource private UserService userService; @RequestMapping("/home") private ModelAndView init(HttpServletRequest request){ ModelAndView mv = new ModelAndView(); List<Map<String,Object>> user = userService.getAll(); mv.addObject("user",user); mv.setViewName("index"); return mv; } @RequestMapping("/index/load") private @ResponseBody List<Map<String,Object>> requestJson(@RequestBody Map<String, Object> map){ List<Map<String,Object>> list = userService.getAll(); return list; } @RequestMapping("/register") private @ResponseBody Map<String,Object> register(@RequestBody Map<String, Object> map){ return userService.addUser(map); } @RequestMapping("/deleteuser") private @ResponseBody Map<String,Object> delete(@RequestBody Map<String, Object> map){ int num = userService.delete(map); Map<String, Object> state = new HashMap<String, Object>(); state.put("result", num); return state; } @RequestMapping("/update") private @ResponseBody Map<String,Object> update(@RequestBody Map<String, Object> map){ int num = userService.update(map); Map<String, Object> state = new HashMap<String, Object>(); state.put("result", num); return state; } }