模拟post提交注册出现问题，验证码总说不正确，怎么办啊，真的是很急
我用下面代码下载到的验证码
HttpWebRequest h = (HttpWebRequest)HttpWebRequest.Create("http://9.52ms.org/vpn/include/vdimgck.php");
HttpWebResponse response = (HttpWebResponse)h.GetResponse();
pictureBox1.Image = new Bitmap(response.GetResponseStream());
CookieContainer cookie = new CookieContainer();
cookie.Add(response.Cookies);
用的下面这个方法调用模拟post提交
string html = HttpHelper.GetHtml("http://9.52ms.org/vpn/useradmin/user_self_new_save.php", null, "POST", "ioBB=®sdid=&chksdid=false&hidRecName001=&hidRecName002=&hidRecRule001=&hidRecRule002=&agent4IpCheck=checkIp&txtRegisterFrom=0&txtRegisterZone=0&sessionid=lr1c1w55vih4et45ct511krb&goldtype=&partner=&apptype=&agent=&ctype=&hidExinfo=&qqaccount=&CUSTOM_REG_EVN=&ptType=0&UserID=aab2" + i + "&Upassword=123123&Upassword2=123123&Email_Address=123@qq.com&User_True=&User_QQ=&idcard=&Description=&ThisNo="+textBox1.Text+"&btnSubmit=+%E7%AB%8B%E5%8D%B3%E6%B3%A8%E5%86%8C91vpn%E8%B4%A6%E5%8F%B7+");
MessageBox.Show(html);下面是post提交的方法。输入的验证码不一样，提示错误，请大家指示。为什么？难道这样模拟获取的验证码，没有效果么？
听说是什么cookies的问题？怎么整？
public static string GetHtml(string url, CookieContainer cookieContainer = null, string method = "GET", string postData = "")
{
cookieContainer = cookieContainer ?? new CookieContainer();
HttpWebRequest httpWebRequest = null;
HttpWebResponse httpWebResponse = null;
try
{
httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
httpWebRequest.CookieContainer = cookieContainer;
httpWebRequest.ContentType = contentType;
httpWebRequest.Referer = referer;
httpWebRequest.Accept = accept;
httpWebRequest.UserAgent = userAgent;
httpWebRequest.Method = method;
httpWebRequest.ServicePoint.ConnectionLimit = int.MaxValue;
if (method.ToUpper() == "POST")
{
byte[] byteRequest = Encoding.Default.GetBytes(postData);
Stream stream = httpWebRequest.GetRequestStream();
stream.Write(byteRequest, 0, byteRequest.Length);
stream.Close();
}
httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
Stream responseStream = httpWebResponse.GetResponseStream();
StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8);
string html = streamReader.ReadToEnd();
streamReader.Close();
responseStream.Close();
httpWebRequest.Abort();
httpWebResponse.Close();
return html;
}
catch (Exception)
{
return string.Empty;
}
}
[解决办法]
public class HttpHelper { public static string contentType = "application/x-www-form-urlencoded"; public static string accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-silverlight, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, application/x-silverlight-2-b1, */*"; public static string userAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; Zune 4.7; BOIE9;ZHCN)"; public static string referer = "http://9.52ms.org/vpn/useradmin/user_self_new.php"; /// <summary> /// 获取字符流 /// </summary> /// <param name="url"></param> /// <param name="cookieContainer"></param> /// <returns></returns> public static Stream GetStream(string url, CookieContainer cookieContainer) { HttpWebRequest httpWebRequest = null; HttpWebResponse httpWebResponse = null; try { httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url); httpWebRequest.CookieContainer = cookieContainer; httpWebRequest.ContentType = contentType; httpWebRequest.Referer = referer; httpWebRequest.Accept = accept; httpWebRequest.UserAgent = userAgent; httpWebRequest.Method = "GET"; httpWebRequest.ServicePoint.ConnectionLimit = int.MaxValue; httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse(); Stream responseStream = httpWebResponse.GetResponseStream(); return responseStream; } catch (Exception) { return null; } } /// <summary> /// 获取HTML /// </summary> /// <param name="url"></param> /// <param name="cookieContainer"></param> /// <param name="method">GET or POST</param> /// <param name="postData">like "username=admin&password=123"</param> /// <returns></returns> public static string GetHtml(string url, CookieContainer cookieContainer = null, string method = "GET", string postData = "") { cookieContainer = cookieContainer ?? new CookieContainer(); HttpWebRequest httpWebRequest = null; HttpWebResponse httpWebResponse = null; try { httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url); httpWebRequest.CookieContainer = cookieContainer; httpWebRequest.ContentType = contentType; httpWebRequest.Referer = referer; httpWebRequest.Accept = accept; httpWebRequest.UserAgent = userAgent; httpWebRequest.Method = method; httpWebRequest.ServicePoint.ConnectionLimit = int.MaxValue; if (method.ToUpper() == "POST") { byte[] byteRequest = Encoding.Default.GetBytes(postData); Stream stream = httpWebRequest.GetRequestStream(); stream.Write(byteRequest, 0, byteRequest.Length); stream.Close(); } httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse(); string cookie_string = httpWebResponse.Headers.Get("Set-Cookie"); cookie_string += "0"; Stream responseStream = httpWebResponse.GetResponseStream(); StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8); string html = streamReader.ReadToEnd(); streamReader.Close(); responseStream.Close(); httpWebRequest.Abort(); httpWebResponse.Close(); return html; } catch (Exception) { return string.Empty; } } }