我给一个REST服务实现定义了一个错误处理器：
internal sealed class SearchingErrorHandler : IErrorHandler
{
#region IErrorHandler 成员
public bool HandleError(Exception error)
{
return true;
}
public void ProvideFault(Exception error, MessageVersion version, ref Message fault)
{
var detail = error.Message;
fault = Message.CreateMessage(version, "", detail, new DataContractSerializer(detail.GetType()));
var webBodyFormatMessageProp = new WebBodyFormatMessageProperty(WebContentFormat.Xml);
fault.Properties.Add(WebBodyFormatMessageProperty.Name, webBodyFormatMessageProp);
var httpResponseMessageProp = new HttpResponseMessageProperty();
httpResponseMessageProp.Headers[HttpResponseHeader.ContentType] = Utility.XmlContentType;
httpResponseMessageProp.StatusCode = HttpStatusCode.InternalServerError;
httpResponseMessageProp.StatusDescription = error.Message;
fault.Properties.Add(HttpResponseMessageProperty.Name, httpResponseMessageProp);
}
#endregion
}
是通过这种方式加入的：
[ErrorHandlerBehavior(typeof(CachedErrorHandler))]
internal sealed class CachedPageService : ICachedPage
调试的时候，如果服务抛出异常，流程能走到ProvideFault方法中，能够正常调用，一切都好像正常，但是客户端收到的始终是400错误，而不是500.
问题出在哪？
快乐在于能够长时间的为自己认为值得的事情努力工作，不管它是什么。
