我正在使用 Asp.Net-Identity-2， 并且尝试使用以下方法来验证电子邮件验证代码。但是我收到 “无效令牌” 错误消息。

• 我的应用程序的用户管理器是这样的：

  public class AppUserManager : UserManager<AppUser>
  

  {
  public AppUserManager(IUserStore store) : base(store) { }

  public static AppUserManager Create(IdentityFactoryOptions<AppUserManager> options, IOwinContext context)
  {
      AppIdentityDbContext db = context.Get<AppIdentityDbContext>();
      AppUserManager manager = new AppUserManager(new UserStore<AppUser>(db));
  
      manager.PasswordValidator = new PasswordValidator { 
          RequiredLength = 6,
          RequireNonLetterOrDigit = false,
          RequireDigit = false,
          RequireLowercase = true,
          RequireUppercase = true
      };
  
      manager.UserValidator = new UserValidator<AppUser>(manager)
      {
          AllowOnlyAlphanumericUserNames = true,
          RequireUniqueEmail = true
      };
  
      var dataProtectionProvider = options.DataProtectionProvider;
  
      //token life span is 3 hours
      if (dataProtectionProvider != null)
      {
          manager.UserTokenProvider =
             new DataProtectorTokenProvider<AppUser>
                (dataProtectionProvider.Create("ConfirmationToken"))
             {
                 TokenLifespan = TimeSpan.FromHours(3)
             };
      }
  
      manager.EmailService = new EmailService();
  
      return manager;
  } //Create
  

  } //class
  } //namespace

• 我生成令牌的操作是（即使我在此处检查令牌，也会收到“无效令牌”消息）：

  [AllowAnonymous]
  

  [HttpPost]
  [ValidateAntiForgeryToken]
  public ActionResult ForgotPassword(string email)
  {
  if (ModelState.IsValid)
  {
  AppUser user = UserManager.FindByEmail(email);
  if (user == null || !(UserManager.IsEmailConfirmed(user.Id)))
  {
  // Returning without warning anything wrong…
  return View(“../Home/Index”);

      } //if
  
      string code = UserManager.GeneratePasswordResetToken(user.Id);
      string callbackUrl = Url.Action("ResetPassword", "Admin", new { Id = user.Id, code = HttpUtility.UrlEncode(code) }, protocol: Request.Url.Scheme);
  
      UserManager.SendEmail(user.Id, "Reset password Link", "Use the following  link to reset your password: <a href=\"" + callbackUrl + "\">link</a>");
  
      //This 2 lines I use tho debugger propose. The result is: "Invalid token" (???)
      IdentityResult result;
      result = UserManager.ConfirmEmail(user.Id, code);
  }
  
  // If we got this far, something failed, redisplay form
  return View();
  

  } //ForgotPassword

• 我检查令牌的操作是（在这里，当我检查结果时，我总是得到“无效令牌”）：

  [AllowAnonymous]
  

  public async Task ResetPassword(string id, string code)
  {

  if (id == null || code == null)
  {
      return View("Error", new string[] { "Invalid params to reset password." });
  }
  
  IdentityResult result;
  
  try
  {
      result = await UserManager.ConfirmEmailAsync(id, code);
  }
  catch (InvalidOperationException ioe)
  {
      // ConfirmEmailAsync throws when the id is not found.
      return View("Error", new string[] { "Error to reset password:<br/><br/><li>" + ioe.Message + "</li>" });
  }
  
  if (result.Succeeded)
  {
      AppUser objUser = await UserManager.FindByIdAsync(id);
      ResetPasswordModel model = new ResetPasswordModel();
  
      model.Id = objUser.Id;
      model.Name = objUser.UserName;
      model.Email = objUser.Email;
  
      return View(model);
  }
  
  // If we got this far, something failed.
  string strErrorMsg = "";
  foreach(string strError in result.Errors)
  {
      strErrorMsg += "<li>" + strError + "</li>";
  } //foreach
  
  return View("Error", new string[] { strErrorMsg });
  

  } //ForgotPasswordConfirmation

我不知道可能遗漏了什么或出了什么问题…