1

これは、Asp.net から Windows Azure クラウドに移行された Web プロジェクトの実行中に発生する例外です。ASP.net アプリケーションを実行しようとすると問題ありませんが、Windows Azure クラウドに移行した後、次の例外が発生します。解決策を見つける手がかりはありません。誰かが必要なことをしてください..

**Exception:**
Server.GetLastError().GetBaseException()
{"Response is not available in this context."}
    [System.Web.HttpException]: {"Response is not available in this context."}
    Data: {System.Collections.ListDictionaryInternal}
    HelpLink: null
    InnerException: null
    Message: "Response is not available in this context."
    Source: "System.Web"

    StackTrace: "   at System.Web.UI.Page.get_Response()\r\n   at Writehome_aspxToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )\r\n   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeAndVerifyType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, Boolean verifyKnownType, RuntimeTypeHandle declaredTypeHandle, Type declaredType)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type declare
dType)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at WritePlaceHolderToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )\r\n   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.S
erializeAndVerifyType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, Boolean verifyKnownType, RuntimeTypeHandle declaredTypeHandle, Type declaredType)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type declaredType)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at WriteArrayOfControlToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , Collection
DataContract )\r\n   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeAndVerifyType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, Boolean verifyKnownType, RuntimeTypeHandle declaredTypeHandle, Type declaredType)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type declaredType)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDec
laredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at WriteArrayOfanyTypeToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , CollectionDataContract )\r\n   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle)\r\n   a
t System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)\r\n   at WriteSerializableSessionStateStoreDataToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )\r\n   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)\r\n   at System.Runtime.Serialization.NetDataContractSerializer.InternalWriteObjectContent(XmlWriterDelegator writer, Object graph, DataContract contract, Hashtable surrogateDataContracts)\r\n   at System.Runtime.Serialization.NetDataContractSerializer.InternalWr
iteObject(XmlWriterDelegator writer, Object graph)\r\n   at System.Runtime.Serialization.XmlObjectSerializer.InternalWriteObject(XmlWriterDelegator writer, Object graph, DataContractResolver dataContractResolver)\r\n   at System.Runtime.Serialization.XmlObjectSerializer.WriteObjectHandleExceptions(XmlWriterDelegator writer, Object graph, DataContractResolver dataContractResolver)\r\n   at System.Runtime.Serialization.XmlObjectSerializer.WriteObject(XmlDictionaryWriter writer, Object graph)\r\n   at Microsoft.ApplicationServer.Caching.NetDataContractCacheObjectSerializer.Serialize(Stream stream, Object value)\r\n   at Microsoft.ApplicationServer.Caching.DataCacheObjectSerializationProvider.SerializeUserObject(Object userObject, Boolean isCompressionEnabled, ValueFlagsVersion flagsType)\r\n   at Microsoft.ApplicationServer.Caching.SocketClientProtocol.SerializeValue(Object obj)\r\n   at Microsoft.ApplicationServer.Caching.SocketClientProtocol.PutAndUnlock(String key, Object value, DataCacheLockHandle lockHandle,
 TimeSpan timeout, DataCacheTag[] tags, String region, IMonitoringListener listener)\r\n   at Microsoft.ApplicationServer.Caching.DataCache.InternalPutAndUnlock(String key, Object value, DataCacheLockHandle lockHandle, TimeSpan timeout, DataCacheTag[] tags, String region, IMonitoringListener listener)\r\n   at Microsoft.ApplicationServer.Caching.DataCache.<>c__DisplayClass9c.<PutAndUnlock>b__9b()\r\n   at Microsoft.ApplicationServer.Caching.MonitoringListenerFactory.EmptyListener.Microsoft.ApplicationServer.Caching.IMonitoringListener.Listen[TResult](Func`1 innerDelegate)\r\n   at Microsoft.ApplicationServer.Caching.DataCache.PutAndUnlock(String key, Object value, DataCacheLockHandle lockHandle, TimeSpan timeout)\r\n   at Microsoft.Web.DistributedCache.DataCacheWrapper.PutAndUnlock(String key, Object value, DataCacheLockHandle lockHandle, TimeSpan timeout)\r\n   at Microsoft.Web.DistributedCache.DataCacheForwarderBase.<>c__DisplayClass1c.<PutAndUnlock>b__1b()\r\n   at Microsoft.Web.DistributedCache.DataCacheFo
rwarderBase.<>c__DisplayClass31`1.<PerformCacheOperation>b__30()\r\n   at Microsoft.Web.DistributedCache.DataCacheRetryWrapper.PerformCacheOperation(Action action)\r\n   at Microsoft.Web.DistributedCache.DataCacheForwarderBase.PerformCacheOperation[TResult](Func`1 func)\r\n   at Microsoft.Web.DistributedCache.DataCacheForwarderBase.PutAndUnlock(String key, Object value, DataCacheLockHandle lockHandle, TimeSpan timeout)\r\n   at Microsoft.Web.DistributedCache.BlobBasedSessionStoreProvider.SetAndReleaseItemExclusive(HttpContextBase context, String id, SessionStateStoreData item, Object lockId, Boolean newItem)\r\n   at Microsoft.Web.DistributedCache.DistributedCacheSessionStateStoreProvider.SetAndReleaseItemExclusive(HttpContext context, String id, SessionStateStoreData item, Object lockId, Boolean newItem)\r\n   at System.Web.SessionState.SessionStateModule.OnReleaseState(Object source, EventArgs eventArgs)\r\n   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Exec
ute()\r\n   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)"
    TargetSite: {System.Web.HttpResponse get_Response()}
4

3 に答える 3

0

私はこの問題のために苦しみました...あなたはこのパッチを適用することによってこの問題を解決することができます...

http://support.microsoft.com/kb/2468871

このパッチをローカル環境とクラウド環境（スタートアップの役割を使用）に適用しました。ただし、クラウド環境は更新される可能性があるため、今すぐパッチを適用する必要はありません。問題がまだクラウドに存在する場合は、この問題についてAzureサポート（インド：1-（866）676-6546）に問い合わせることができます。パッチの適用を支援します。

于 2013-02-04T08:09:07.960 に答える
0

メソッドで BLOB にアクセスするなど、Azure を実行しようとすると発生しますApplication_Start。

アクセス可能だったからですHttpContext.Current.Response。Azure では、ログに Response オブジェクトを使用します。いずれにせよ、Web アプリで BLOB にアクセスする必要がある場合、またはその他の Azure の操作を実行する必要があり、Application_Startメソッドのように Response オブジェクトがなくてもこれを実行したい場合。設定するだけですHttpContext.Current to nullが、賢い方法です。

Application_Start は以下のとおりです

protected void Application_Start(object sender, EventArgs e)
{
    CloudStorageAccount.SetConfigurationSettingPublisher((configName, configSetter) =>
    {
        configSetter(RoleEnvironment.GetConfigurationSettingValue(configName));
    });

    using (new AzureContext())
    {
        CloudStorageAccount storageAccount = CloudStorageAccount.FromConfigurationSetting("BlobConnectionString");

        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

        CloudBlobContainer container = blobClient.GetContainerReference("mycontainer");
        container.CreateIfNotExist();
        container.FetchAttributes();
    }
}

AzureContext は次のとおりです。

public class AzureContext : IDisposable
{
    HttpContext _oldHttpContext;
    bool _restoreOldHttpContext = false;


    public AzureContext(bool forceSettingContextToNull = false)
    {
        if (forceSettingContextToNull)
        {
            _oldHttpContext = HttpContext.Current;
            HttpContext.Current = null;
            _restoreOldHttpContext = true;
        }
        else
        {
            try
            {
                HttpResponse response = HttpContext.Current.Response;
            }
            catch (HttpException)
            {
                _oldHttpContext = HttpContext.Current;
                HttpContext.Current = null;
                _restoreOldHttpContext = true;
            }
        }
    }


    public void Dispose(bool disposing)
    {
        if (disposing)
        {
            if (_restoreOldHttpContext)
            {
                HttpContext.Current = _oldHttpContext;
            }
        }
    }


    public void Dispose()
    {
        Dispose(true);
    }


    ~AzureContext()
    {
        Dispose(false);
    }
}

詳細については、これを確認してくださいAzure and Response is not available in this context

これがお役に立てば幸いです。

于 2013-02-02T19:31:12.807 に答える
0

ご協力ありがとうございます。ようやく問題の原因がわかりました。System.Web.UI.WebControls をセッションに保存しようとしたため、問題が発生しました。

すべての System.Web.UI.WebControls がシリアライズ可能であるとは限らないため、WebControls をセッションに保存することは避けてください。

幸せなコーディング..

于 2013-02-14T07:07:31.677 に答える