C# MVC应用程序在登录后重定向到错误页面，我不知道为什么

我有一个MVC应用程序，要求用户使用其microsoft帐户登录，在本地主机上测试时效果良好，但是在将其发布到Azure时，用户登录后会被重定向到

http://{appname}.azurewebsites.net/home/error

，这导致找不到404，因为我没有在我的家庭控制器上实现错误方法。但我的问题是，我不知道是什么原因导致应用程序重定向到此错误页面。试图在浏览器上手动输入

http://{appname}.azurewebsites.net/home

，只会再次重定向到错误页面

我试着在home controller上创建一个错误方法，在屏幕上简单地显示一个“hello”，然后发生了一些非常奇怪的事情，应用程序在错误页面url和windows登录页面之间来回重定向，而实际上也没有打开（我可以看到URL在浏览器上来回切换，但这两个页面都没有打开，因为它在加载完成之前重定向了）

然后，我将主控制器上的方法基本上保留为空，正如您在下面所看到的，只剩下VisualStudio添加的默认内容，但同样的问题仍在发生

[Authorize]
public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View();
    }

    public ActionResult About()
    {
        ViewBag.Message = "Your application description page.";

        return View();
    }

    public ActionResult Contact()
    {
        ViewBag.Message = "Your contact page.";

        return View();
    }
}

在web.config上，我有

，所以我右键单击了错误页面并单击了ShowSource，在html之后，这里列出了这个异常堆栈跟踪：

[HttpException]: A public action method 'Error' was not found on controller 'LogDatabaseApi.Controllers.HomeController'.
   at System.Web.Mvc.Controller.HandleUnknownAction(String actionName)
   at System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

---

显然，OWIN没有正确检测到startup类，并引发了一个导致整个问题的异常。将

添加到web.config文件中的appsettings解决了这个问题

您的路由是什么样子的？如果您导航到

/home/index

？@DavidG，就像我在帖子中所说的那样，手动输入/h浏览器上的ome地址重定向到/home/error。在我的

RouteConfig.cs

中，我有

routes.MapRoute（名称：“Default”，url:{controller}/{action}/{id}，默认值：new{controller=“home”，action=“Index”，id=UrlParameter.Optional}）；

您的授权设置如何？您是否也连接了Azure数据库？@DavidG是的，我有一个Azure数据库连接。我的授权设置基本上是VS在使用“读取目录”创建多租户项目时创建的默认设置选项已启用，可为graph API生成令牌。我已将startup.auth.cs类文件添加到帖子中。因此，您的身份验证在某个地方失败，您需要对此进行调试。您可以在

AuthenticationFailed

委托中看到，该委托重定向到

/home/error

public partial class Startup
{
    private static string clientId = ConfigurationManager.AppSettings["ida:ClientId"];
    private string appKey = ConfigurationManager.AppSettings["ida:ClientSecret"];
    private string resourceEndPoint = "https://manage.office.com";
    private static string aadInstance = ConfigurationManager.AppSettings["ida:AADInstance"];
    private string authority = aadInstance + "common";
    private static string redirectUri = ConfigurationManager.AppSettings["ida:RedirectUri"];

    public void ConfigureAuth(IAppBuilder app)
    {

        app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);

        app.UseCookieAuthentication(new CookieAuthenticationOptions { });

        app.UseOpenIdConnectAuthentication(
            new OpenIdConnectAuthenticationOptions
            {
                ClientId = clientId,
                Authority = authority,
                RedirectUri = redirectUri,
                PostLogoutRedirectUri = redirectUri,
                TokenValidationParameters = new System.IdentityModel.Tokens.TokenValidationParameters
                {
                        // instead of using the default validation (validating against a single issuer value, as we do in line of business apps), 
                        // we inject our own multitenant validation logic
                        ValidateIssuer = false,
                },
                Notifications = new OpenIdConnectAuthenticationNotifications()
                {
                    SecurityTokenValidated = (context) =>
                    {
                        return Task.FromResult(0);
                    },
                    AuthorizationCodeReceived = (context) =>
                    {
                        var code = context.Code;

                        ClientCredential credential = new ClientCredential(clientId, appKey);
                        string tenantID = context.AuthenticationTicket.Identity.FindFirst("http://schemas.microsoft.com/identity/claims/tenantid").Value;
                        string signedInUserID = context.AuthenticationTicket.Identity.FindFirst(ClaimTypes.NameIdentifier).Value;

                        AuthenticationContext authContext = new AuthenticationContext(aadInstance + tenantID, new ADALTokenCache(signedInUserID));
                        AuthenticationResult result = authContext.AcquireTokenByAuthorizationCode(
                            code, new Uri(HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Path)), credential, resourceEndPoint);

                        AdminLogin.AdminOrganization = new Organization
                        {
                            Id = Guid.Parse(tenantID),
                            Name = "Unknown",
                            AccessToken = result.AccessToken,
                            TokenExpiration = result.ExpiresOn.DateTime,
                            RefreshToken = result.RefreshToken
                        };

                        return Task.FromResult(0);
                    },
                    AuthenticationFailed = (context) =>
                    {
                        context.OwinContext.Response.Redirect("/Home/Error");
                        context.HandleResponse(); // Suppress the exception
                            return Task.FromResult(0);
                    }
                }
            });

    }
}