‘authority’应该是Uri格式参数名称：authority

我根据这个例子开发了我的 mvc 应用程序：https://github.com/AzureADSamples/WebApp-WebAPI-OpenIDConnect-DotNet https://github.com/AzureADSamples/WebApp-WebAPI-OpenIDConnect-DotNet

身份验证与 Azure AAD 完美配合，我可以看到用户已登录：

http://screencast.com/t/v7G6OgXC http://screencast.com/t/v7G6OgXC

但是在下面的控制器中我想打印出一些APP属性，并且我收到上面的错误

‘authority’应该是Uri格式参数名称：authority 描述：执行期间发生未处理的异常。 当前的网络请求。请查看堆栈跟踪以了解更多信息 有关错误及其在代码中的来源的信息。

异常详细信息：System.ArgumentException：“权限”应该位于 Uri格式参数名称：authority

我在控制器中的代码是这样的：

using Microsoft.Azure.ActiveDirectory.GraphClient;
using Microsoft.IdentityModel.Clients.ActiveDirectory;
using Microsoft.IdentityModel.Protocols;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Globalization;
using System.Linq;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;

namespace PruebasAD.Controllers
{
    public class ActiveDirectoryController : Controller
    {
        private static string azureAdGraphApiEndPoint = ConfigurationManager.AppSettings["ida:AzureAdGraphApiEndPoint"];
        private static string clientId = ConfigurationManager.AppSettings["ida:ClientId"];
        private static string appKey = ConfigurationManager.AppSettings["ida:AppKey"];

        // GET: ActiveDirectory
        public ActionResult GetAzureAadApp()
        {
            // Instantiate an instance of ActiveDirectoryClient.
            Uri serviceRoot = new Uri(azureAdGraphApiEndPoint);
            ActiveDirectoryClient adClient = new ActiveDirectoryClient(
                serviceRoot,
                async () => await GetAppTokenAsync());

            // Create the extension property
            string extPropertyName = "VehInfo";
            ExtensionProperty extensionProperty = new ExtensionProperty()
            {
                Name = extPropertyName,
                DataType = "String",
                TargetObjects = { "User" }
            };

            Application app =(Application)adClient.Applications.Where(
                    a => a.AppId == clientId).ExecuteSingleAsync().Result;

            if (app == null)
            {
                throw new ApplicationException("Unable to get a reference to application in Azure AD.");
            }

            return View(app);
        }

        private static async Task<string> GetAppTokenAsync()
        {
            string clientId = ConfigurationManager.AppSettings["ida:ClientId"];
            string appKey = ConfigurationManager.AppSettings["ida:AppKey"];
            string aadInstance = ConfigurationManager.AppSettings["ida:AADInstance"];
            string tenant = ConfigurationManager.AppSettings["ida:Tenant"];
            string postLogoutRedirectUri = ConfigurationManager.AppSettings["ida:PostLogoutRedirectUri"];
            string azureAdGraphApiEndPoint = ConfigurationManager.AppSettings["ida:AzureAdGraphApiEndPoint"];
            // This is the resource ID of the AAD Graph API.  We'll need this to request a token to call the Graph API.
            string graphResourceId = ConfigurationManager.AppSettings["ida:GraphResourceId"];

            string Authority = String.Format(CultureInfo.InvariantCulture, aadInstance, tenant);

            // Instantiate an AuthenticationContext for my directory (see authString above).
            AuthenticationContext authenticationContext = new AuthenticationContext(aadInstance, false);

            // Create a ClientCredential that will be used for authentication.
            // This is where the Client ID and Key/Secret from the Azure Management Portal is used.
            ClientCredential clientCred = new ClientCredential(clientId, appKey);

            // Acquire an access token from Azure AD to access the Azure AD Graph (the resource)
            // using the Client ID and Key/Secret as credentials.
            AuthenticationResult authenticationResult = await authenticationContext.AcquireTokenAsync(azureAdGraphApiEndPoint, clientCred);

            // Return the access token.
            return authenticationResult.AccessToken;
        }
    }


    public class CompanyInfo
    {
        public int Nit;
        public string Nombre;
    }
}

为了安全起见，web.config 进行了一些更改

<add key="ida:GraphResourceId" value="https://graph.windows.net" />
    <add key="ida:GraphUserUrl" value="https://graph.windows.net/{0}/me?api-version=2013-11-08" />
    <add key="ida:ClientId" value="xx-b1aa-42ab-9693-6c22d01ca338" />
    <add key="ida:AppKey" value="xx/6Vsq0CuhQyYVcR5Vggw=" />
    <add key="ida:Tenant" value="xx.onmicrosoft.com" />
    <add key="ida:AADInstance" value="https://login.microsoftonline.com/{0}" />
    <add key="ida:PostLogoutRedirectUri" value="https://localhost:44300/" />
    <add key="ida:AzureAdGraphApiEndPoint" value="https://graph.windows.net/xx-d5f0-453b-8f60-2be9b41b2ea0" />

你需要通过Authority to AuthenticationContext()代替aadInstance:

// Instantiate an AuthenticationContext for my directory (see authString above).
AuthenticationContext authenticationContext = new AuthenticationContext(authority, false);