ASP Provider 项目在 Azure 环境中失败

Question

最近，我在新服务器中部署 Azure 应用程序时遇到了一个奇怪的错误。我正在使用 ASP 提供程序（由 microsoft 通过 Azure SDK 代码示例提供）。不管上传了多少次，我都会收到这个丑陋的大消息。请帮忙！

Error in '/' Application. --------------------------------------------------------------------------------
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace: [NullReferenceException: Object reference not set to an instance of an object.]
Microsoft.Samples.ServiceHosting.AspProviders.<>c__DisplayClass5.<ResetItemTimeout>b__4() in C:\Users\upload.user\Desktop\Deployments\Deployment 2.20_A\AspProviders\TableStorageSessionStateProvider.cs:497
Microsoft.Samples.ServiceHosting.AspProviders.ProviderRetryPolicies.RetryNImpl(Action action, Int32 numberOfRetries, TimeSpan minBackoff, TimeSpan maxBackoff, TimeSpan deltaBackoff) in C:\Users\upload.user\Desktop\Deployments\Deployment 2.20_A\AspProviders\SecUtil.cs:439
Microsoft.Samples.ServiceHosting.AspProviders.<>c__DisplayClass1.<RetryN>b__0(Action action) in C:\Users\upload.user\Desktop\Deployments\Deployment 2.20_A\AspProviders\SecUtil.cs:395
System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +739 System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +114 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +370
-------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

Answer 1

是的 AppFabric Cache 已由微软正式发布并提供支持。此链接对教程有很大帮​​助：http://msdn.microsoft.com/en-us/ gg457897
然而，使用这种方法还有一个额外的计费方面，而 Tablestoragesessionprovider 使用 BlobStorage 却是微不足道的。

Answer 2

这些示例的优点是提供了代码，因此您通常可以更仔细地了解出了什么问题。我已经查看过，您收到此错误的最可能原因是会话状态提供程序的配置存在错误（它可能指向错误的帐户）或表和容器不存在那个账户。

有可能没有可用的会话对象，但我发现这不太可能。

话虽如此，表存储会话提供程序是 不适合在生产环境中发布。您最好使用 SQL Server 会话提供程序 或pp Fabric 缓存会话提供程序。