Asp.Net Identity自定义user类的运用,ClaimsIdentity

<appSettings>
    <add key="webpages:Version" value="3.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
    <add key="owin:AutomaticAppStartup" value="true" />
  </appSettings>

public partial class Startup
{
        public void ConfigureAuth(IAppBuilder app)
        {
           app.UseCookieAuthentication(new CookieAuthenticationOptions
            {
                AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                LoginPath = new PathString("/Account/Login"),
            });

        }
}

public interface IUserIdentity
    {
        string Id { get; set; }
        string UserName { get; set; }
    }

        public static ClaimsIdentity CreateIdentity<TUserIdentity>(TUserIdentity user)
            where TUserIdentity : IUserIdentity
        {
            ClaimsIdentity identity = new ClaimsIdentity(DefaultAuthenticationTypes.ApplicationCookie);
            identity.AddClaim(new Claim("http://schemas.microsoft.com/accesscontrolservice/2010/07/claims/identityprovider", "ASP.NET Identity"));
            identity.AddClaim(new Claim(ClaimTypes.Name, user.UserName));
            identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, user.Id));
            //identity.AddClaim(new Claim(ClaimTypes.PrimarySid, user.Id));
            //identity.AddClaim(new Claim("DisplayName", user.UserName));
            return identity;
        }

private IAuthenticationManager AuthenticationManager
        {
            get { return HttpContext.GetOwinContext().Authentication; }
        }

                var user = AppUserIdentityService.FindAsync(loginViewModel.UserName, loginViewModel.Password, db.MyUsers);
                if (user == null || user.Result == null)
                    ModelState.AddModelError("", "用户名或密码不正确");
                else
                {
                    ClaimsIdentity identity = AppUserIdentityService.CreateIdentity(user.Result);
                    AuthenticationManager.SignOut(DefaultAuthenticationTypes.ApplicationCookie);
                    AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = loginViewModel.RememberMe }, identity);
                    return RedirectToLocal(returnUrl);
                }