// I have tried with multiple different URLS this one // and http://www.movable.com/login do not throw errors string url = "http://portal.movable.com/"; string username = ""; string password = ""; string authTok = @"+HOt3NTkkIAHkMSMvzQisEquhun9xvIG1mHzIEh6CAo="; string postData = "utf8=✓" + "&authenticity_token=" + authTok + "&user[login]=" + username + "&user[password]=" + password + "&user[offset]=-5"; var container = new CookieContainer(); var buffer = Encoding.UTF8.GetBytes(postData); var request = (HttpWebRequest)HttpWebRequest.Create(url); request.CookieContainer = container; request.UserAgent = "Mozilla/5.0"; request.Method = "POST"; request.KeepAlive = true; request.AllowAutoRedirect = true; request.CookieContainer = container; request.ContentLength = buffer.Length; request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; using (var requestStream = request.GetRequestStream()) requestStream.Write(buffer, 0, buffer.Length); using (var response = request.GetResponse()) { using (var reader = new StreamReader(response.GetResponseStream())) { var result = reader.ReadToEnd(); //this is to read the page source after the request MessageBox.Show(result); } }
这里还有来自网站的相关数据（我知道令牌在示例中有所不同，我使它们相同但不起作用）
试试这种方式：
var cookieJar = new CookieContainer(); CookieAwareWebClient client = new CookieAwareWebClient(cookieJar); // the website sets some cookie that is needed for login, and as well the 'authenticity_token' is always different string response = client.DownloadString("http://portal.movable.com/signin"); // parse the 'authenticity_token' and cookie is auto handled by the cookieContainer string token = Regex.Match(response, "authenticity_token.+?value=\"(.+?)\"").Groups[1].Value; string postData = string.Format("utf8=%E2%9C%93&authenticity_token={0}&user%5Blogin%5D=USERNAME&user%5Bpassword%5D=PASSWORD&user%5Boffset%5D=5.5&user%5Bremember_me%5D=0&button=", token); //WebClient.UploadValues is equivalent of Http url-encode type post client.Method = "POST"; response = client.UploadString("http://portal.movable.com/signin", postData); //i am getting invalid user/pass, but i am sure it will work fine with normal user/password }
额外使用的类别：
public class CookieAwareWebClient : WebClient { public string Method; public CookieContainer CookieContainer { get; set; } public Uri Uri { get; set; } public CookieAwareWebClient() : this(new CookieContainer()) { } public CookieAwareWebClient(CookieContainer cookies) { this.CookieContainer = cookies; } protected override WebRequest GetWebRequest(Uri address) { WebRequest request = base.GetWebRequest(address); if (request is HttpWebRequest) { (request as HttpWebRequest).CookieContainer = this.CookieContainer; (request as HttpWebRequest).ServicePoint.Expect100Continue = false; (request as HttpWebRequest).UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0"; (request as HttpWebRequest).Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; (request as HttpWebRequest).Headers.Add(HttpRequestHeader.AcceptLanguage, "en-US,en;q=0.5"); (request as HttpWebRequest).Referer = "http://portal.movable.com/signin"; (request as HttpWebRequest).KeepAlive = true; (request as HttpWebRequest).AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip; if (Method == "POST") { (request as HttpWebRequest).ContentType = "application/x-www-form-urlencoded"; } } HttpWebRequest httpRequest = (HttpWebRequest)request; httpRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate; return httpRequest; } protected override WebResponse GetWebResponse(WebRequest request) { WebResponse response = base.GetWebResponse(request); String setCookieHeader = response.Headers[HttpResponseHeader.SetCookie]; if (setCookieHeader != null) { //do something if needed to parse out the cookie. try { if (setCookieHeader != null) { Cookie cookie = new Cookie(); //create cookie this.CookieContainer.Add(cookie); } } catch (Exception) { } } return response; } }
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