public async Task <ActionResult> SignIn(Models.SignInModel model) { if (!ModelState.IsValid) { return(View(model)); } var user = await _userService.SiginInAsync(model.Email, model.Password); if (user != null) { return(RedirectToAction("Index")); } else { ModelState.AddModelError("", "邮箱地址或密码输入错误!"); } return(View(model)); }