[ValidateAntiForgeryToken]//防止重复提交
        public ActionResult Register2(Models.user u)
        {
            AjaxResult ajaxResult = new AjaxResult();

            if (ModelState.IsValid)//通过校验
            {
                if (Op_User.Add(u))
                {
                    ajaxResult.Result    = DoResult.Success;
                    ajaxResult.PromptMsg = "注册成功";
                    //修改到登录
                    return(RedirectToAction("Login"));
                }
                else
                {
                    ajaxResult.Result    = DoResult.Failed;
                    ajaxResult.PromptMsg = "注册失败,请重试";
                }
            }
            else
            {
                ajaxResult.Result    = DoResult.Failed;
                ajaxResult.PromptMsg = "输入错误:未填全或者格式错误";
            }
            return(Redirect("Login"));
        }
        public ActionResult Login(string loginEmail, string loginPassword)
        {
            AjaxResult ajaxResult = new AjaxResult();

            if (loginEmail == "" || loginPassword == "")
            {
                ajaxResult.Result    = DoResult.Failed;
                ajaxResult.PromptMsg = "请将信息填全!!";
            }
            else
            {
                user u = new user();
                u.Email    = loginEmail;
                u.Password = loginPassword;
                user findUser = Op_User.FindUser(u);
                if (findUser != null)
                {
                    ajaxResult.Result    = DoResult.Success;
                    ajaxResult.PromptMsg = "登录成功";
                    //设置登录状态
                    Session["USER"] = findUser;
                }
                else
                {
                    ajaxResult.Result    = DoResult.Failed;
                    ajaxResult.PromptMsg = "邮箱或者密码不对";
                }
            }
            return(Json(ajaxResult));
        }
        public ActionResult Change(string email, string oldPassword, string newPassword)
        {
            AjaxResult ajaxResult = new AjaxResult();

            if (email == "" || oldPassword == "" || newPassword == "")
            {
                ajaxResult.Result    = DoResult.Failed;
                ajaxResult.PromptMsg = "请将信息填全!!";
            }
            else
            {
                user u = (user)Session["USER"];
                if (u.Email == email && u.Password == oldPassword)
                {
                    if (Op_User.changePass(u, newPassword))
                    {
                        Session.Abandon();
                        ajaxResult.Result    = DoResult.Success;
                        ajaxResult.PromptMsg = "修改成功,请重新登录";
                    }
                    else
                    {
                        ajaxResult.Result    = DoResult.Failed;
                        ajaxResult.PromptMsg = "修改失败,请重试";
                    }
                }
                else
                {
                    ajaxResult.Result    = DoResult.Failed;
                    ajaxResult.PromptMsg = "邮箱或者原密码不对";
                }
            }
            return(Json(ajaxResult));
        }