C# WCF故障处理

Q如何在客户端获取原始异常（发生在服务器上）

我正在使用自托管WCF服务和C#4，并尝试设置适当的异常处理

我有一个客户看起来像这样

private ServiceResponse PerformRemoteAction(ServiceRequest request, ProcessOperations operation)
{
    ...    
    try
    {
        //remote call
        switch (operation)
        {
            ...
            case ProcessOperations.VerifyAction: { response = client.VerifyAction(request); break; } 

            default: throw new NotImplementedException();
        }
    }
    catch (Exception ex)
    {
        AppManager.LogException(ex);
    }

    return response;
}

和服务实现

public override ServiceResponse VerifyAction(ServiceRequest request)
{
    RegisterRequest(request);

    try
    {
        var chain = new VerificationChain();
        Responce = chain.Run(request);
    }
    catch (Exception ex)
    {
        throw new FaultException<WcfException>(ExceptionFactory.Create(ex),
            new FaultReason(ex.Message));
    }

    SetSuccessfulResponce();

    return Responce;
}

这是我的WCFEException类

---

您是否尝试捕获FaultException

catch (FaultException<WcfException> ex)
{
   AppManager.LogException(ex);
}
catch (FaultException unknownFault)
{
   AppManager.LogException(unknownFault);
}

catch（FaultException-ex）
{
AppManager.LogException（ex）；
}
捕获（FaultException unknownFault）
{
AppManager.LogException（未知故障）；
}

---

您需要在合同中包含一个，才能使其生效。

什么是

WcfException

，它可以序列化吗

---

在任何情况下，我建议您在服务器上启用跟踪，如中所述-这将有助于您诊断问题。

如果您想获得有关原始异常的信息，可以使用：

<behaviors>
    <serviceBehaviors>
        <behavior>
            <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
    </serviceBehaviors>
</behaviors>

谢谢您的回答。我的问题是在服务接口中，即在FaultContractAttribute的Action属性中，它指向了错误的URL

[ServiceContract]
public interface IServiceOperation : IOperation
{
    ...
    [OperationContract(Action = "http://tempuri.org/IServiceOperation/VerifyAction", ReplyAction = "http://tempuri.org/IServiceOperation/VerifyAction")]
    [FaultContractAttribute(typeof(WcfException), Action = "http://tempuri.org/IServiceOperation/ExecuteRequestWcfExceptionFault", Name = "WcfException", Namespace = "http://schemas.datacontract.org/2004/07/TH.Core.Exceptions")]
    ServiceResponse VerifyAction(ServiceRequest request);
}

我通过删除所有其他属性（自动确定）解决了这个问题，只保留了WcfFault的类型

[ServiceContract]
    public interface IServiceOperation : IOperation
    {
        ...
        [OperationContract(Action = "http://tempuri.org/IServiceOperation/VerifyAction", ReplyAction = "http://tempuri.org/IServiceOperation/VerifyAction")]
        [FaultContractAttribute(typeof(WcfException))]
        ServiceResponse VerifyAction(ServiceRequest request);
    }

tnx的答复是，它不起作用。无论如何，FaultException是一个异常，如果我捕捉到子异常或父异常，它不会有太大的变化。我不想有太长的捕获块，这适合我的情况。@oleksii:你也在你的操作中添加了FaultContractAttribute吗？@Christia.K它最初在那里，我会尝试查看跟踪信息。是的，它是可序列化的。我现在要查一下痕迹。
<behaviors>
    <serviceBehaviors>
        <behavior>
            <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
    </serviceBehaviors>
</behaviors>

[ServiceContract]
public interface IServiceOperation : IOperation
{
    ...
    [OperationContract(Action = "http://tempuri.org/IServiceOperation/VerifyAction", ReplyAction = "http://tempuri.org/IServiceOperation/VerifyAction")]
    [FaultContractAttribute(typeof(WcfException), Action = "http://tempuri.org/IServiceOperation/ExecuteRequestWcfExceptionFault", Name = "WcfException", Namespace = "http://schemas.datacontract.org/2004/07/TH.Core.Exceptions")]
    ServiceResponse VerifyAction(ServiceRequest request);
}

[ServiceContract]
    public interface IServiceOperation : IOperation
    {
        ...
        [OperationContract(Action = "http://tempuri.org/IServiceOperation/VerifyAction", ReplyAction = "http://tempuri.org/IServiceOperation/VerifyAction")]
        [FaultContractAttribute(typeof(WcfException))]
        ServiceResponse VerifyAction(ServiceRequest request);
    }