从WebBrowser中取得Cookie 和 HttpWebRequest设置cookie!

.将WebBrowser的cookie信息传给HttpWebRequest

第一种方法：

先建一个"CookieContainer" 把WebBrowser中的Cookie保存在里面

//在WebBrowser中登录cookie保存在WebBrowser.Document.Cookie中

CookieContainer myCookieContainer = new CookieContainer();

//String 的Cookie　要转成　Cookie型的　并放入CookieContainer中

string cookieStr = webBrowser1.Document.Cookie;

string[] cookstr = cookieStr.Split(';');

foreach (string str in cookstr)

{

string[] cookieNameValue = str.Split('=');

Cookie ck = new Cookie(cookieNameValue[0].Trim().ToString(), cookieNameValue[1].Trim().ToString());

ck.Domain = "必须写对

myCookieContainer.Add(ck);

}

HttpWebRequest hreq = (HttpWebRequest)HttpWebRequest.Create("http://www.abc.com/search.asp");

hreq.Method = "POST";

hreq.ContentType = "application/x-www-form-urlencoded";

//自己创建的CookieContainer

hreq.CookieContainer = myCookieContainer;

string postdata = "id=2005&action=search&name=";

byte[] byte1 = Encoding.ASCII.GetBytes(postdata);

hreq.ContentLength = byte1.Length;

Stream poststream = hreq.GetRequestStream();

poststream.Write(byte1, 0, byte1.Length);

poststream.Close();

HttpWebResponse hres = (HttpWebResponse)hreq.GetResponse();

第二种方法：

//获取webBrowser的方法，不需要引用其他内裤

[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]

static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref int pcchCookieData, int dwFlags, object lpReserved);

private static string GetCookieString(string url)

{

// Determine the size of the cookie

int datasize = 256;

StringBuilder cookieData = new StringBuilder(datasize);

if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x00002000, null))

{

if (datasize < 0)

return null;

// Allocate stringbuilder large enough to hold the cookie

cookieData = new StringBuilder(datasize);

if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x00002000, null))

return null;

}

return cookieData.ToString();

}

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

request.Method = "GET";

request.Headers.Clear();

request.Headers[HttpRequestHeader.Cookie] = GetCookieString(url);

request.ContentType = "application/x-www-form-urlencoded";

request.KeepAlive = true;

request.AllowAutoRedirect = true;

request.Proxy = null;

HttpWebResponse httpResponse = (HttpWebResponse)request.GetResponse();

using (System.IO.Stream dataStream = httpResponse.GetResponseStream())

{

using (System.IO.StreamReader sr = new System.IO.StreamReader(dataStream, Encoding.UTF8))

{

string html = sr.ReadToEnd();

sr.Close();

}

}

httpResponse.Close();

特别说明一下：



CookieContainer cookieCon = new CookieContainer();

req.CookieContainer = cookieCon;

登录后会自动写入COOKIE到CookieContainer中，不需要手工设置cookie的

参考网站：http://hi.baidu.com/ghdrvbbsgtjnrze/item/833e53da3d3d8919d68ed028