客户端未正确捕获 WCF 自定义故障异常 [英] WCF custom fault exception not caught correctly in client

问题描述

我正在尝试创建一些自定义FaultException.我创建了一个名为 CreateFault 的 DataContract 类.

I'm trying to create some custom FaultException. I've made a DataContract class called CreateFault.

[DataContract]
public class CreateFault
{
    private string report;

    public CreateFault(string message)
    {
        this.report = message;
    }

    [DataMember]
    public string Message
    {
        get { return this.report; }
        set { this.report = value; }
    }
}

然后我在服务方法中抛出错误.

I'm then throwing the fault in a service method.

在IService1.cs

[OperationContract]
[FaultContract(typeof(CreateFault))]
void TestFaultException();

和Service1.cs

public void TestFaultException()
{
    throw new FaultException<CreateFault>(new CreateFault("CreateFault message"), "Message abt exception");
}

我在客户端中捕获了 FaultException.

I catch the FaultException in my client.

private void btnTest_Click(object sender, RoutedEventArgs e)
{
    try
    {
        ServiceReference1.Service1Client client = new ServiceReference1.Service1Client();
        client.TestFaultException();
    }
    catch (FaultException<CreateFault> ex)
    {
        MessageBox.Show(ex.Detail.Message, "Success", MessageBoxButton.OK, MessageBoxImage.Error);
    }
    catch (FaultException ex)
    {
        MessageBox.Show(ex.Message, "Failure", MessageBoxButton.OK, MessageBoxImage.Error);
    }
    catch (Exception ex)
    {
    }
}

现在问题来了.当我在 Visual Studio 2010 中创建 WCF 服务应用程序项目时，它按预期工作.错误在:

Now here comes the problem. When I create a WCF Service Application project in Visual Studio 2010 it works like expected. The error is caught in:

catch (FaultException<CreateFault> ex)

但是当我使用自定义FaultExceptions 创建 WCF 服务库项目时，客户端无法识别我的自定义异常.相反，它会捕获以下错误:

But when I create a WCF Service Library project with my custom FaultExceptions the client does not recognize my custom exception. It instead catches the error in:

catch (FaultException ex)

为什么它不适用于 WCF 服务应用程序项目?

Why does it not work with WCF Service Application Project?

这是我在调试过程中捕获到异常时得到的

This is what i get during debugging when it catches the exception in

catch (FaultException ex)

(在立即窗口中输入 ?ex)

(typed ?ex in Immediate window)

{"消息 abt 异常"}

{"Message abt exception"}

[System.ServiceModel.FaultException<WpfApplication1.ServiceReference2.CreateFault>]: {"Message abt exception"}
base {System.ServiceModel.CommunicationException}: {"Message abt exception"}
Action: "http://tempuri.org/IService1/TestFaultExceptionCreateFaultFault"
Code: {System.ServiceModel.FaultCode}
Message: "Message abt exception"
Reason: {Message abt exception}

编辑 2:

发现问题.我有两个 Service 引用，它们都有 CreateFault DataContract.当我运行程序时，它使用了错误的程序.

Found the problem. I had two Service references who both had the CreateFault DataContract. And it was using the wrong one when i ran the program.

当我变成

catch (FaultException<ServiceReference2.CreateFault> ex) 

成功了

推荐答案

发现问题.我有两个 Service 引用，它们都有 CreateFault DataContract.当我运行程序时，它使用了错误的程序.

Found the problem. I had two Service references who both had the CreateFault DataContract. And it was using the wrong one when i ran the program.

当我变成

catch (FaultException<ServiceReference2.CreateFault> ex) 

成功了

这篇关于客户端未正确捕获 WCF 自定义故障异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！