C# ASP MVC 5 Web Api 2通过电子邮件传递

我按照教程让我的实时帐户oauth在我的asp mvc 5和web api 2应用程序上运行

一切都进行得很顺利，再加上一个额外的范围，我可以获取用户的电子邮件。但是我如何将它传递回网页呢

一些代码：

在Startup.Auth.cs中

        Microsoft.Owin.Security.MicrosoftAccount.MicrosoftAccountAuthenticationOptions microsoftAccountOptions = new Microsoft.Owin.Security.MicrosoftAccount.MicrosoftAccountAuthenticationOptions(){
            ClientId = microsoftClientId,
            ClientSecret = microsoftClientSecret
        };

        microsoftAccountOptions.Scope.Add("wl.basic");
        microsoftAccountOptions.Scope.Add("wl.emails");


        microsoftAccountOptions.Provider = new Microsoft.Owin.Security.MicrosoftAccount.MicrosoftAccountAuthenticationProvider()
        {
            OnAuthenticated = async context =>
            {
                context.Identity.AddClaim(new System.Security.Claims.Claim("urn:microsoftaccount:access_token", context.AccessToken));

                context.Identity.AddClaim(new System.Security.Claims.Claim(System.Security.Claims.ClaimTypes.Email, context.User["emails"].Value<string>("account")));

            }
        };


        app.UseMicrosoftAccountAuthentication(microsoftAccountOptions);

---

如何传递电子邮件声明？

应该可以在HttpContext上访问声明声明：

var claims = (ClaimsPrincipal)HttpContext.Current.User;

var claims = (ClaimsPrincipal)HttpContext.Current.User;