在ASP.NET中使用SOAP Extensions捕获WebService异常

[WebMethod]
public string HelloWorld()
{
throw new Exception("this exption can't be handled by Application_Error Method");
return "Hello World";
}

定义Application_Error将不能捕获这个异常.

原因需要了解一下SOAP请求的在ASP.NET的生命周期.

<webServices>
<soapExtensionTypes>
<add type="Elplan.App.SoapExceptionHandler, Elplan.App" priority="1" group="High" />
</soapExtensionTypes>
</webServices>