更新用戶信息

更新用戶信息，list頁中單擊name連接，但仍然以ID做爲條件傳值，並且更新時，對輸入的內容須要進行驗證，驗證時要導入包validation-api-1.1.0.Final.jar,hibernate-validator-5.1.3.Final.jar

 <td><a th:href="@{update(userID=${user.userID})}"><span th:text="${user.username}"></span></a></td>

在Oontroller中

@RequestMapping(value = "/update", method = RequestMethod.GET)
public String update(UserBean UserBean,Model model) {
     UserBean result=helloWorldService.sUser(UserBean);
     model.addAttribute("UserBean",result);
        return "update";
    }
@RequestMapping(value = "/tupdate", method = RequestMethod.POST)
public String Login(HttpServletRequest req,Model model,@Valid @ModelAttribute("UserBean") UserBean UserBean,BindingResult results) throws SQLException {
 if (results.hasErrors()) {
  log.info("內容驗證失敗");
  model.addAttribute("xinxi", "用戶名或密碼不能爲空");
  UserBean result=helloWorldService.sUser(UserBean);
     model.addAttribute("UserBean",result);
        return "update";
 }
 if (!UserBean.getPassword().equals(UserBean.getRepassword())) {
  log.info("內容驗證失敗");
  model.addAttribute("xinxi", "兩次輸入密碼不一致");
  UserBean result=helloWorldService.sUser(UserBean);
     model.addAttribute("UserBean",result);
        return "update";
  }
  if(helloWorldService.updateUser(UserBean)!=0){
      List<UserBean> result=helloWorldService.listUser(UserBean);
         model.addAttribute("list",result);
            return "list";
            }
  else
   return "update";
  }

SQL文

<update id="updatename"
  parameterClass="cn.training.controller.UserBean">
  UPDATE  user   SET  username=#username#,password=#password#  WHERE   UserID = #userID#
 </update>
 <select id="sUser"
  parameterClass="cn.training.controller.UserBean"
  resultClass="cn.training.controller.UserBean">
  SELECT  UserID as userID,username,password  FROM   user   WHERE  UserID = #userID#
 </select>