C＃.NET - HttpWebRequest - System.Net.WebException - 嘗試了太多的自動重定向

Question

我有一個HttpWebRequest類的問題。
我試圖讓網站的源代碼：
http://www.filmweb.pl/film/Igrzyska+%C5%9Bmierci%3A+Kosog%C5%82os.+Cz%C4%99%C5%9B%C4%87+1-2014-626983
但我總是得到一個錯誤：

System.Net.WebException occurred 
    HResult=-2146233079 
    Message=Too many automatic redirections were attempted. 
    Source=System 
    StackTrace: 
     at System.Net.HttpWebRequest.GetResponse() 
     at ProjectName.ClassName.MethodName(String urlAddress) 
    InnerException: 

這是我的代碼：

Uri uri = new Uri(@"http://www.filmweb.pl/film/Igrzyska+%C5%9Bmierci%3A+Kosog%C5%82os.+Cz%C4%99%C5%9B%C4%87+1-2014-626983"); 
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri); 
HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 

我使用了一個提琴手Web Debugger工具將Firefox請求與我的C＃.NET請求進行比較，但仍然沒有答案。

火狐：

GET http://www.filmweb.pl/film/Igrzyska+%C5%9Bmierci%3A+Kosog%C5%82os.+Cz%C4%99%C5%9B%C4%87+1-2014-626983 HTTP/1.1 
Host: www.filmweb.pl 
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:43.0) Gecko/20100101 Firefox/43.0 
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 
Accept-Language: en-US,en;q=0.5 
Accept-Encoding: gzip, deflate 
Connection: keep-alive 


HTTP/1.1 200 OK 
Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate, proxy-revalidate 
Content-Type: text/html;charset=UTF-8 
Content-Language: pl-PL 
Transfer-Encoding: chunked 
Date: Wed, 07 Oct 2015 13:36:31 GMT 
X-Cache: HIT from blade110.non.3dart.com 
X-Cache-Hits: 116 
Server: Apache 

C＃.NET：

GET http://www.filmweb.pl/film/Igrzyska+%C5%9Bmierci:+Kosog%C5%82os.+Cz%C4%99%C5%9B%C4%87+1-2014-626983 HTTP/1.1 
Host: www.filmweb.pl 
Connection: Keep-Alive 


HTTP/1.1 301 Moved Permanently 
Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate, proxy-revalidate 
Content-Type: text/html;charset=UTF-8 
Expires: Thu, 01 Jan 1970 00:00:00 GMT 
Content-Language: pl-PL 
Location: /film/Igrzyska+%C5%9Bmierci%3A+Kosog%C5%82os.+Cz%C4%99%C5%9B%C4%87+1-2014-626983 
Content-Length: 0 
Accept-Ranges: bytes 
Date: Wed, 07 Oct 2015 13:34:51 GMT 
X-Cache: MISS from blade712.non.3dart.com 
Server: Apache 

我已閱讀其他職位，並通過不同的東西，比如更新我的代碼。

request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; 
request.TransferEncoding = "gzip, deflate"; 
request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:43.0) Gecko/20100101 Firefox/43.0"; 

request.Referer = "http://www.filmweb.pl/film/Igrzyska+%C5%9Bmierci%3A+Kosog%C5%82os.+Cz%C4%99%C5%9B%C4%87+1-2014-626983"; 
request.KeepAlive = true; 
request.AllowAutoRedirect = true; 
request.MaximumAutomaticRedirections = 250; 
request.Proxy = null; 
request.UseDefaultCredentials = true; 

CookieContainer cookieContainer = new CookieContainer(); 
request.CookieContainer = cookieContainer; 

但沒有任何工程： -/

任何人可以幫助我解決這個問題？

Answer 1

在獲取深層鏈接之前，當網站加載時，您需要有初始cookie。

下面的代碼對我的作品：

// cookies 
CookieContainer cookieContainer = new CookieContainer(); 

// make one call to the root of the website 
// to get the cookies set 
Uri uri = new Uri(@"http://www.filmweb.pl"); 
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri); 
request.CookieContainer = cookieContainer; 
HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 

using(var s = response.GetResponseStream()) 
{ 
    using(var sr = new StreamReader(s)) 
    { 
     // linqpad 
     sr.ReadToEnd().Dump(); // to check for errors 
    } 
} 

// we have cookies now 
// do the deep link fetch 
uri = new Uri(@"http://www.filmweb.pl/film/Igrzyska+%C5%9Bmierci%3A+Kosog%C5%82os.+Cz%C4%99%C5%9B%C4%87+1-2014-626983"); 
request = (HttpWebRequest)WebRequest.Create(uri); 
request.CookieContainer = cookieContainer; 
response = (HttpWebResponse)request.GetResponse(); 

//store the result 
using(var f = File.Create("C:\\temp\\pl.txt")) 
{ 
    response.GetResponseStream().CopyTo(f); 
} 

確保如果你刮，你堅持自己的許可和使用政策的網站。不要做任何超出合理使用的範圍，也不要做任何有損複製的材料。