public async Task <IActionResult> CheckLogin(LoginModel loginModel)
        {
            var messages = new Messages();

            if (loginModel != null &&
                loginModel.UserName.IsNotNullOrEmpty() &&
                loginModel.UserPwd.IsNotNullOrEmpty() &&
                loginModel.UserCode.IsNotNullOrEmpty())
            {
                if (MD5Encrypt.MD5By16(loginModel.UserCode.ToLower()) != webHelper.GetStrSession(loginModel.UserCode.ToUpper()))
                {
                    messages.Msg = "验证码错误,请重新输入";
                }
                else
                {
                    var result = await adminSvc.Login(loginModel.UserName, loginModel.UserPwd);

                    if (result.Succeeded)
                    {
                        //记住登录凭证
                        var claims = new List <Claim>
                        {
                            //用户编号||用户名
                            new Claim(ClaimTypes.Name, result.UserId.ToString() + "|||" + loginModel.UserName)
                        };
                        ClaimsIdentity  userIdentity = new ClaimsIdentity(claims, "login");
                        ClaimsPrincipal principal    = new ClaimsPrincipal(userIdentity);
                        //添加身份认证
                        await HttpContext.SignInAsync(principal);

                        //缓存权限
                        //userCacheService.SetPermissionCache(result.UserId);
                    }
                    messages.Success = result.Succeeded;
                    messages.Msg     = result.Msg;
                }
            }
            else
            {
                messages.Msg = "请填写完整";
            }
            return(Json(messages));
        }