当我提前关闭 HttpWebResponse 时 Streamreader 无法工作
Uri targetUri = new Uri(targetURL);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(targetUri);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string data = reader.ReadToEnd();
response.Close();
为什么上面的代码可以正常工作，但下面的代码却不行？ 请注意，我在以下代码中提前关闭了响应。
Uri targetUri = new Uri(targetURL);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(targetUri);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
response.Close();
string data = reader.ReadToEnd();
Uri targetUri = new Uri(targetURL);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(targetUri);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string data = reader.ReadToEnd();
response.Close();
Why does the above code work fine but the following does not?
Notice I close response early in the following code.
Uri targetUri = new Uri(targetURL);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(targetUri);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
response.Close();
string data = reader.ReadToEnd();
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关闭响应也会关闭响应流...因此 StreamReader 不再有任何内容可供读取。
来自
WebResponse.Close：Closing the response closes the response stream as well... so the
StreamReaderno longer has anything to read from.From the documentation for
WebResponse.Close:您的阅读器是使用响应中的流进行初始化的，因此它正在使用它。
如果关闭响应流，读取器将不再有可供读取的工作基础流。
Your reader was initialized with the stream from the response, so it is using it.
If you close the response stream, the reader no longer has a working underlying stream to read from.