[英]problem using proxy with HttpWebRequest in C#
我正在使用此代碼將代理與 HttpWebRequest 一起使用
public string GetBoardPageResponse(string url, string proxy = "")
{
ServicePointManager.Expect100Continue = false;
HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest;
HttpWebResponse response = null;
WebProxy myProxy = new WebProxy(proxy);
request.Proxy = myProxy;
request.Timeout = 20000;
request.ReadWriteTimeout = 20000;
request.Accept = "*/*";
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729)";
request.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip,deflate");
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
// SEND POST
Stream os = null;
StreamReader sr = null;
try
{
//post data
byte[] bytes = Encoding.ASCII.GetBytes(param);
if (param.Length > 0)
{
request.ContentLength = bytes.Length; //Count bytes to send
os = request.GetRequestStream();
os.Write(bytes, 0, bytes.Length); //Send it
}
// Get the response
HttpWebResponse webResponse;
using (webResponse = (HttpWebResponse)request.GetResponse())
if (webResponse == null)
return "";
sr = new StreamReader(webResponse.GetResponseStream(), Encoding.GetEncoding(webResponse.CharacterSet));
string encoding = webResponse.CharacterSet;
string data = sr.ReadToEnd().Trim();
return data;
}
catch (Exception ex)
{
return "";
}
finally
{
if (sr != null)
sr.Close();
if (response != null)
response.Close();
if (os != null)
os.Close();
}
}
現在,如果我不使用代理服務器,這個 function 可以正常工作。 但如果我添加任何代理,它將返回 null 結果。 如果我使用與 WebClient 相同的代理,它就像魅力一樣工作。我真的不知道是什么真正阻止或竊聽這個。任何想法或幫助將不勝感激!
剛剛更改: using (webResponse = (HttpWebResponse)request.GetResponse())
到webResponse = (HttpWebResponse)request.GetResponse();
nooby miskate..
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