c# - 如何克服 System.ServiceModel.FaultException

Question

在更新我的 WCF 客户端的服务引用时(只需在 Visual Studio 2008 中单击“更新服务引用”)，出现以下错误:System.ServiceModel.FaultException: The message ...

我已经创建了 ErrorServiceBehaviour 类。由于此类行为是为错误处理而创建的，因此必须将 IErrorHandler 实现应用于每个 ChannelDispatcher。

public class ErrorServiceBehaviour : Attribute, IServiceBehavior
{
   ...
   public Type FaultType
   {
      get { return _faultType; }
      set { _faultType = value; }
   }

   public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
   {
       foreach (ChannelDispatcher dispatcher in serviceHostBase.ChannelDispatchers)
       {
           dispatcher.ErrorHandlers.Add(new ErrorHandler(_faultType));
       }
   }
}

public class ErrorHandler : IErrorHandler
{
     public ErrorHandler(Type faultType)
     {
        _faultType = faultType;         
     }
     ...
}

后来，我通过将 ErrorServiceBehavior 属性应用于我的服务类来使用该行为:

[ErrorServiceBehavior(FaultType = typeof(MyServiceFault))]

public class MyService : IMyService
{
   ...
}

问题是，当我在 ApplyDispatchBehavior 方法中注释掉 foreach 循环时，我完全没有收到任何错误，但这不是出路(因为我希望我的错误得到处理)。

下面是我的服务配置:

<system.serviceModel>
    <services>
        <service behaviorConfiguration="DefaultBehavior" name="MyService">
            <endpoint address="" binding="wsHttpBinding" contract="IMyService" bindingConfiguration="NoSecurityBinding"/>
            <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
        </service>
    </services>
    <behaviors>
        <serviceBehaviors>
            <behavior name="DefaultBehavior">
                <serviceMetadata httpGetEnabled="true" />
                <serviceDebug includeExceptionDetailInFaults="true" />
            </behavior>
        </serviceBehaviors>
    </behaviors>
    <bindings>
        <wsHttpBinding>
            <binding name="NoSecurityBinding" >
                <security mode="None">
                    <transport clientCredentialType="None"/>
                    <message establishSecurityContext="false"/>
                </security>
            </binding>
            <binding name="DefaultBinding" />
        </wsHttpBinding>
    </bindings>
</system.serviceModel>

Answer 1

替换你的代码并尝试:

<bindings>
        <wsHttpBinding>
            <binding name="NoSecurityBinding" >
                <security mode="None">
                    <transport clientCredentialType="None"/>
                    <message clientCredentialType="None"/>
                </security>
            </binding>
            <binding name="DefaultBinding" />
        </wsHttpBinding>
    </bindings>