我在一个新网站上使用 OpenId 并试图获取有关用户的一些基本信息，请参阅下面的代码。为什么以下始终为空？
var myData = response.GetExtension<ClaimsResponse>();
和主要代码
[System.Web.Mvc.AcceptVerbs(HttpVerbs.Get)]
public ActionResult LogOn()
{
var openid = new OpenIdRelyingParty();
IAuthenticationResponse response = openid.GetResponse();
if (response != null)
{
switch (response.Status)
{
case AuthenticationStatus.Authenticated:
FormsAuthentication.RedirectFromLoginPage(
response.ClaimedIdentifier, false);
var myData = response.GetExtension<ClaimsResponse>();
break;
case AuthenticationStatus.Canceled:
ModelState.AddModelError("loginIdentifier",
"Login was cancelled at the provider");
break;
case AuthenticationStatus.Failed:
ModelState.AddModelError("loginIdentifier",
"Login failed using the provided OpenID identifier");
break;
}
}
return View("Register");
}
[System.Web.Mvc.AcceptVerbs(HttpVerbs.Post)]
public ActionResult LogOn(string loginIdentifier)
{
if (!Identifier.IsValid(loginIdentifier))
{
ModelState.AddModelError("loginIdentifier",
"The specified login identifier is invalid");
return View();
}
else
{
var openid = new OpenIdRelyingParty();
IAuthenticationRequest request = openid.CreateRequest(
Identifier.Parse(loginIdentifier));
// Require some additional data
request.AddExtension(new ClaimsRequest
{
Email = DemandLevel.Request,
FullName = DemandLevel.Request
});
return request.RedirectingResponse.AsActionResult();
}
}