錯誤而實施IErrorHandler - 不能添加

我用這兩篇文章作爲參考，以實現IErrorHandler行爲擴展：錯誤而實施IErrorHandler - 不能添加

（我使用.NET Framework 3.5 。）

不過，我有一點麻煩 - 每當我試圖啓動服務，我得到以下錯誤：

System.Configuration.ConfigurationErrorsException：由於基礎行爲類型未實現IServiceBehavior接口，因此無法將行爲擴展名'errorHandlerExtension'添加到名爲'Test.TestService.Service1Behavior'的服務行爲。

這裏是我的代碼和配置文件：

ErrorhandlerExtension.cs：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.ServiceModel.Configuration; 
using System.Configuration; 
using System.ServiceModel; 
using System.ServiceModel.Channels; 
using System.ServiceModel.Description; 
using System.ServiceModel.Dispatcher; 
using System.Collections.ObjectModel; 

namespace Test.TestService 
{ 
class ErrorHandlerExtension:BehaviorExtensionElement,IServiceBehavior 
{ 
    public override Type BehaviorType 
    { 
     get { return typeof(ErrorHandler); } 
    } 
    protected override object CreateBehavior() 
    { 
     return new ErrorHandler(); 
    } 
    void IServiceBehavior.AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints, BindingParameterCollection bindingParameters) 
    { 

    } 
    private IErrorHandler GetInstance() 
    { 
     return new ErrorHandler(); 
    } 
    void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) 
    { 
     IErrorHandler errorHandlerInstance = GetInstance(); 
     foreach (ChannelDispatcher dispatcher in serviceHostBase.ChannelDispatchers) 
     { 
      dispatcher.ErrorHandlers.Add(errorHandlerInstance); 
     } 
    } 

    void IServiceBehavior.Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) 
    { 
     foreach (ServiceEndpoint endpoint in serviceDescription.Endpoints) 
     { 
      if (endpoint.Contract.Name.Equals("IMetadataExchange") && 
       endpoint.Contract.Namespace.Equals("http://schemas.microsoft.com/2006/04/mex")) 
       continue; 

      foreach (OperationDescription description in endpoint.Contract.Operations) 
      { 
       if (description.Faults.Count == 0) 
       { 
        throw new InvalidOperationException("FaultContractAttribute not found on this method"); 
       } 
      } 
     } 
    } 

}

}

的web.config：

<system.serviceModel> 
    <extensions> 
     <behaviorExtensions> 
     <add name="errorHandlerExtension" 
      type="Test.TestService.ErrorHandlerExtension, Test.TestService, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> 
     </behaviorExtensions> 
    </extensions> 

    <behaviors> 
     <serviceBehaviors> 
     <behavior name="Test.TestService.Service1Behavior"> 
      <serviceMetadata httpGetEnabled="true" /> 
      <serviceDebug includeExceptionDetailInFaults="true" /> 
      <errorHandlerExtension /> 
     </behavior> 
    </serviceBehaviors> 
    </behaviors> 
</system.serviceModel>

每當我擺脫errorHandlerExtension /元素，該服務工作正常，但它無法啓動，只要我包含errorHandlerExtension元素（與錯誤）。我是WCF新手，很難過。有任何想法嗎？

編輯：添加ErrorHandler.cs：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.ServiceModel; 
using System.ServiceModel.Channels; 
using System.ServiceModel.Description; 
using System.ServiceModel.Dispatcher; 
using System.Collections.ObjectModel; 

namespace Test.TestService 
{ 
public class ErrorHandler:IErrorHandler 
{ 

    public bool HandleError(Exception error) 
    { 

     LogError("UnhandledError: "+ error); 
     return true; 
    } 

    public void ProvideFault(Exception error, MessageVersion version, ref Message fault) 
    { 
     FaultException faultException = new FaultException("Exception message:ProvideFault"); 
     MessageFault messageFault = faultException.CreateMessageFault(); 
     fault = Message.CreateMessage(version, messageFault, faultException.Action); 
    } 

} 
}

來源

2012-10-29 J.L

這個ErrorHandler類在哪裏？它應該實現IServiceBehavior –

我在這裏添加了ErrorHandler類代碼 - 我在ErrorHandlerExtension類中實現了IServiceBehavior，類似於[Error Handler Does not seem ...]（http://stackoverflow.com/questions/3036692/ierrorhandler-似乎並沒有處理我的錯誤在任何想法）後。 –

您應該在ErrorHandler中實現IServiceBehavior。你可以在你鏈接的帖子中看到這個。 –

就像我上文所述，在的ErrorHandler，而不是ErrorHandlerExtension實施IServiceBehavior接口解決了這個問題。

來源

2012-11-20 20:04:19

錯誤而實施IErrorHandler - 不能添加

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