Visual studio 2010 ChannelFactory`1[BLLService]处于打开状态时无法修改

由于WCF中出现异常，Im处于showstopper状态。问题是，我在WCF的windows服务中随机获得此异常。现在，由于我无法调试生产服务器，所以我使用log4net进行日志记录。异常在时间和不同功能中是随机的。它在一天中很少发生，几乎有400到1000 db的条目。现在这里是我的代理类代码，iam在其中检查客户端打开状态

public static BLLServiceClient bLLServiceClient
        {
            get
            {
                if (_bLLServiceClient == null || _bLLServiceClient.State != CommunicationState.Opened)
                {
     _bLLServiceClient = new BLLServiceClient(Common.GetBinding(_settings.BLLServiceBinding), new EndpointAddress(_settings.BLLServiceAddress));                        
     _bLLServiceClient.Open();
                }                  
                return _bLLServiceClient;
            }
            set
            {
                _bLLServiceClient = value;
            }
        }

这意味着，若客户端未处于打开状态，则打开它，否则返回客户端

例外是

SetSiteDataStatusInDatabase:  ____ The communication object, System.ServiceModel.ChannelFactory`1[BLLService], cannot be modified while it is in the Opening state.
System.ServiceModel
   at System.ServiceModel.Channels.CommunicationObject.ThrowIfDisposedOrImmutable()
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.ChannelFactory.EnsureOpened()
   at System.ServiceModel.ChannelFactory`1.CreateChannel(EndpointAddress address, Uri via)
   at System.ServiceModel.ChannelFactory`1.CreateChannel()
   at System.ServiceModel.ClientBase`1.CreateChannel()
   at System.ServiceModel.ClientBase`1.CreateChannelInternal()
   at System.ServiceModel.ClientBase`1.get_Channel()
   at BLLServiceClient.UpdateData(SiteData eSiteData)
   at DataHelper.SetSiteDataStatusInDatabase(SiteData oSiteData, CurrentTaskStatus newStatus)
Void ThrowIfDisposedOrImmutable()
System.Collections.ListDictionaryInternal
 Full Exception....
System.InvalidOperationException: The communication object, System.ServiceModel.ChannelFactory`1[ BLLService], cannot be modified while it is in the Opening state.
   at System.ServiceModel.Channels.CommunicationObject.ThrowIfDisposedOrImmutable()
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.ChannelFactory.EnsureOpened()
   at System.ServiceModel.ChannelFactory`1.CreateChannel(EndpointAddress address, Uri via)
   at System.ServiceModel.ChannelFactory`1.CreateChannel()
   at System.ServiceModel.ClientBase`1.CreateChannel()
   at System.ServiceModel.ClientBase`1.CreateChannelInternal()
   at System.ServiceModel.ClientBase`1.get_Channel()
   at Proxy.BLLService.BLLServiceClient.UpdateData(SiteData eSiteData)
   at DataHelper.SetSiteDataStatusInDatabase(SiteData oSiteData, CurrentTaskStatus newStatus) 

尝试搜索，但找不到修改的类型异常

伊迪特： 使用@Agalo answer后，异常已更改为

   Exception of type 'System.OutOfMemoryException' was thrown.
System
   at System.Uri.CreateHelper(String uriString, Boolean dontEscape, UriKind uriKind, UriFormatException& e)
   at System.Uri.TryCreate(String uriString, UriKind uriKind, Uri& result)
   at System.ServiceModel.Description.NamingHelper.CheckUriParameter(String ns, String paramName)
   at System.ServiceModel.Description.MessagePartDescription..ctor(String name, String ns)
   at System.ServiceModel.Description.TypeLoader.CreateParameterPartDescription(XmlName defaultName, String defaultNS, Int32 index, ICustomAttributeProvider attrProvider, Type type)
   at System.ServiceModel.Description.TypeLoader.CreateParameterMessageDescription(ParameterInfo[] parameters, Type returnType, ICustomAttributeProvider returnAttrProvider, XmlName returnValueName, String methodName, String defaultNS, String action, XmlName wrapperName, String wrapperNamespace, MessageDirection direction)
   at System.ServiceModel.Description.TypeLoader.CreateMessageDescription(MethodInfo methodInfo, Boolean isAsync, Boolean isTask, Type taskTResult, XmlName returnValueName, String defaultNS, String action, XmlName wrapperName, String wrapperNamespace, MessageDirection direction)
   at System.ServiceModel.Description.TypeLoader.CreateOperationDescription(ContractDescription contractDescription, MethodInfo methodInfo, MessageDirection direction, ContractReflectionInfo reflectionInfo, ContractDescription declaringContract)
   at System.ServiceModel.Description.TypeLoader.CreateOperationDescriptions(ContractDescription contractDescription, ContractReflectionInfo reflectionInfo, Type contractToGetMethodsFrom, ContractDescription declaringContract, MessageDirection direction)
   at System.ServiceModel.Description.TypeLoader.CreateContractDescription(ServiceContractAttribute contractAttr, Type contractType, Type serviceType, ContractReflectionInfo& reflectionInfo, Object serviceImplementation)
   at System.ServiceModel.Description.TypeLoader.LoadContractDescriptionHelper(Type contractType, Type serviceType, Object serviceImplementation)
   at System.ServiceModel.ChannelFactory`1.CreateDescription()
   at System.ServiceModel.ChannelFactory.InitializeEndpoint(Binding binding, EndpointAddress address)
   at System.ServiceModel.ChannelFactory`1..ctor(Binding binding, EndpointAddress remoteAddress)
   at System.ServiceModel.ClientBase`1..ctor(Binding binding, EndpointAddress remoteAddress)
   at BLLServiceClient..ctor(Binding binding, EndpointAddress remoteAddress)
   at ServiceClients.get_bLLServiceClient()
   at SiteDataHelper.get_bLLServiceClient()
   at SiteDataHelper.FetchFilesListToDownload(Int32 siteDataId)
System.Uri CreateHelper(System.String, Boolean, System.UriKind, System.UriFormatException ByRef)
System.Collections.ListDictionaryInternal
 Full Exception....
System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
   at System.Uri.CreateHelper(String uriString, Boolean dontEscape, UriKind uriKind, UriFormatException& e)
   at System.Uri.TryCreate(String uriString, UriKind uriKind, Uri& result)
   at System.ServiceModel.Description.NamingHelper.CheckUriParameter(String ns, String paramName)
   at System.ServiceModel.Description.MessagePartDescription..ctor(String name, String ns)
   at System.ServiceModel.Description.TypeLoader.CreateParameterPartDescription(XmlName defaultName, String defaultNS, Int32 index, ICustomAttributeProvider attrProvider, Type type)
   at System.ServiceModel.Description.TypeLoader.CreateParameterMessageDescription(ParameterInfo[] parameters, Type returnType, ICustomAttributeProvider returnAttrProvider, XmlName returnValueName, String methodName, String defaultNS, String action, XmlName wrapperName, String wrapperNamespace, MessageDirection direction)
   at System.ServiceModel.Description.TypeLoader.CreateMessageDescription(MethodInfo methodInfo, Boolean isAsync, Boolean isTask, Type taskTResult, XmlName returnValueName, String defaultNS, String action, XmlName wrapperName, String wrapperNamespace, MessageDirection direction)
   at System.ServiceModel.Description.TypeLoader.CreateOperationDescription(ContractDescription contractDescription, MethodInfo methodInfo, MessageDirection direction, ContractReflectionInfo reflectionInfo, ContractDescription declaringContract)
   at System.ServiceModel.Description.TypeLoader.CreateOperationDescriptions(ContractDescription contractDescription, ContractReflectionInfo reflectionInfo, Type contractToGetMethodsFrom, ContractDescription declaringContract, MessageDirection direction)
   at System.ServiceModel.Description.TypeLoader.CreateContractDescription(ServiceContractAttribute contractAttr, Type contractType, Type serviceType, ContractReflectionInfo& reflectionInfo, Object serviceImplementation)
   at System.ServiceModel.Description.TypeLoader.LoadContractDescriptionHelper(Type contractType, Type serviceType, Object serviceImplementation)
   at System.ServiceModel.ChannelFactory`1.CreateDescription()
   at System.ServiceModel.ChannelFactory.InitializeEndpoint(Binding binding, EndpointAddress address)
   at System.ServiceModel.ChannelFactory`1..ctor(Binding binding, EndpointAddress remoteAddress)
   at System.ServiceModel.ClientBase`1..ctor(Binding binding, EndpointAddress remoteAddress)
   at BLLServiceClient..ctor(Binding binding, EndpointAddress remoteAddress)
   at ServiceClients.get_bLLServiceClient()
   at SiteDataHelper.get_bLLServiceClient()
   at SiteDataHelper.FetchFilesListToDownload(Int32 siteDataId)

---

您可以尝试下面列出的两种解决方案之一

在您的特定情况下，inner ChannelFactory可能已经处于创建/打开状态，当您尝试打开代理时，它正在调用channel Factory的Open方法，该方法引发无效操作异常。要解决此问题，您需要检查channel Factory的状态，在打开代理之前。因此，您需要验证通道工厂是否已创建，然后无需再次打开代理

_bLLServiceClient.ChannelFactory.State != CommunicationState.Created

修改的功能代码

    public static BLLServiceClient bLLServiceClient
        {
            get
            {
                if (_bLLServiceClient == null || _bLLServiceClient.State != CommunicationState.Opened 
                     || _bLLServiceClient.ChannelFactory.State != CommunicationState.Created) 
                {
                    _bLLServiceClient = new BLLServiceClient(Common.GetBinding(_settings.BLLServiceBinding), new EndpointAddress(_settings.BLLServiceAddress));
                    _bLLServiceClient.Open();
                }
                return _bLLServiceClient;
            }
            set
            {
                _bLLServiceClient = value;
            }
        }

解决方案之一是避免使用打开方法。当您调用任何WCF服务方法时，都会在内部进行调用。因此它将被自动调用

---

我错过的一件事是，我正在打开5个windows服务实例，这些实例正在访问同一个对象。我将尝试锁定该对象，但仍然收到相同的异常。第一个例外，我还使用了“锁定”功能。这有助于解决此问题，但现在出现了内存不足异常“自动内存异常”意味着分配的内存和可用内存出现问题。看看代码，你是如何清理资源的。我不喜欢你的答案。首先，在他的原始代码中，为什么函数不总是第二次和第三次失败？其次，您的答案是基于读入、非锁定状态更改其行为。这很容易受到比赛条件的影响，因此我认为这不是正确的答案。