springmvc+hibernate(连接sql)的增删改

package com.ra.user.web.controller; import java.io.IOException; import java.io.PrintWriter; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.ra.user.web.entity.User; import com.ra.user.web.service.IUserService; @Controller @RequestMapping("user") public class UserController { @Resource(name="userService") private IUserService userService; public IUserService getUserService() { return userService; } public void setUserService(IUserService userService) { this.userService = userService; } @RequestMapping("toUser") public String toUser(){ return "addUser"; } @RequestMapping("addUser") public String addUser(User user){ userService.addUser(user); return "redirect:/user/getAllUser"; } @RequestMapping("getAllUser") public String getAllUser(HttpServletRequest request){ request.setAttribute("user", userService.getAllUser()); return "getAllUser"; } @RequestMapping("delUser") public void delUser(String id, HttpServletResponse response){ String result =""; if (userService.delUser(id)) { result = "{\"result\":\"success\"}"; } else { result = "{\"result\":\"error\"}"; } PrintWriter out = null; response.setContentType("application/json"); try { out = response.getWriter(); out.write(result); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } @RequestMapping("updateUser") public String updateUser(User user, HttpServletRequest request){ if(userService.updateUser(user)){ user = userService.getUser(user.getId()); request.setAttribute("user", user); return "redirect:/user/getAllUser"; }else{ return "/error"; } } @RequestMapping("getUser") public String getUser(String id, HttpServletRequest request){ User user = userService.getUser(id); if (user != null) { request.setAttribute("user", user); } return "editUser"; } }