如何:在WCF中集中处理异常 [英] How: Centralize Handling of Exception in WCF

问题描述

大家好，

我想问一下如何在Web服务中实现异常集中处理的方向?就像我不想在每个Web方法中编写try catch一样，相反，我将有一个错误事件处理程序，只要有异常，它将转到该事件句柄，并且我可以执行日志记录.

我尝试了IErrorHandler，但是没有用.
非常感谢您的想法..在此先感谢..

解决方案:实现IErrorHandler
已一旦处理了异常，是否可以指示ErrorHandler不要继续引发异常?

-jeph-

Hi Guys,

I would like to ask direction on how to implement centralize handling of exception in web service? like I don''t wanna write try catch in every web method instead I''ll have one error event handler and whenever there''s and exception it will go to that event handle and i can perform logging.

I have tried IErrorHandler but didn''t work.
Ideas is very much appreciated.. thanks in advance..

Solution: Implement IErrorHandler
Edited: Once handled the exception, can we instruct the ErrorHandler not to continue on throwing exception?

-jeph-

推荐答案

使用Application_Error事件.

参见此处: http://msdn.microsoft.com/en-us/library/24395wz3.aspx [^ ]


对于Web服务，请参见此处:用户友好的ASP.NET异常处理 [

Use the Application_Error event.

See here : http://msdn.microsoft.com/en-us/library/24395wz3.aspx[^]


For Web Services see here : User Friendly ASP.NET Exception Handling[^]

public class ServiceHostGeneralErrorHandler : IErrorHandler
{
    public void ProvideFault(Exception ex, MessageVersion version, ref Message fault)
    {
        if (ex is FaultException)
            return;

        // a general message to the client
        var faultException = new FaultException("A General Error Occured");
        MessageFault messageFault = faultException.CreateMessageFault();
        fault = Message.CreateMessage(version, messageFault, null);
    }

    public bool HandleError(Exception ex)
    {
        // log the exception

        // mark as handled
        return true;
    }
}

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