c# - 在 HttpWebRequest 上调用 Abort 是否对 responseStream.BeginRead 有任何影响

Question

来自 MSDN:

"The Abort method cancels a request to a resource. After a request is canceled, calling the GetResponse, BeginGetResponse, EndGetResponse, GetRequestStream, BeginGetRequestStream, or EndGetRequestStream method causes a WebException with the Status property set to RequestCanceled."

但是如果 responseStream.BeginRead 正在进行中，Abort 会取消这次读取吗？

Answer 1

是的，它正在影响从流中读取。我已经测试了在 msdn HttpWebRequest.Abort Method 中使用的示例代码，并且调用 EndRead 在 ReadCallBack 函数中抛出异常。

RequestState myRequestState = (RequestState)asyncResult.AsyncState;
Stream responseStream = myRequestState.streamResponse;
int read = responseStream.EndRead(asyncResult);

ReadCallBack Exception raised!

Message:The request was aborted: The request was canceled.

Status:RequestCanceled Press any key to continue..........