httpwebresponse

问题 I have successful connected to the login page, however, i'm not sure how to login and grab the file thats behind the login. Below is the code i'm using to make the connect. private static bool bypassAllCertificateStuff(object sender, X509Certificate cert, X509Chain chain, System.Net.Security.SslPolicyErrors error) { return true; } public static void Processing() { string url = "https://app/templat"; HttpWebRequest request; HttpWebResponse response; CookieContainer cookies; ServicePointManager

问题 It seems to me that most of what can be accomplished with HttpWebRequest/Response can also be accomplished with the WebClient class. I read somewhere that WebClient is a high-level wrapper for WebRequest/Response . So far, I can\'t see anything that can be accomplished with HttpWebRequest/Response that can not be accomplished with WebClient , nor where HttpWebRequest/Response will give you more \"fine-grained\" control. When should I use WebClient and when HttpWebRequest/Response ? (Obviously

问题 I\'m trying to implement a limited web crawler in C# (for a few hundred sites only) using HttpWebResponse.GetResponse() and Streamreader.ReadToEnd() , also tried using StreamReader.Read() and a loop to build my HTML string. I\'m only downloading pages which are about 5-10K. It\'s all very slow! For example, the average GetResponse() time is about half a second, while the average StreamREader.ReadToEnd() time is about 5 seconds! All sites should be very fast, as they are very close to my

问题 It seems that GetResponseAsync does not accept cancellationToken in Async/Await. So the question is how can I cancel the below procedure, provided I need to collect Cookies from response: using (HttpWebResponse response = (HttpWebResponse) await request.GetResponseAsync()) { cookies.Add(response.Cookies); } An alternative code to achieve the above is also welcome. 回答1: Something like this should work (untested): public static class Extensions { public static async Task<HttpWebResponse>

问题 I have found the following asp.net code to be very useful when serving files from a database: Response.AppendHeader(\"content-disposition\", \"attachment; filename=\" + fileName); This lets the user save the file to their computer and then decide how to use it, instead of the browser trying to use the file. What other things can be done with the content-disposition response header? 回答1: Note that RFC 6266 supersedes the RFCs referenced below. Section 7 outlines some of the related security