我有一个用C＃编写的类（Windows窗体）
这是一个WebClient类，我打算在某些网站中使用，以及登录和导航。
这是完整的课程pastebin.com（该课程有197行，所以我只使用了pastebin。抱歉，如果我让你有点难以阅读课程，也请在这篇文章下面）
问题是，我不确定为什么它不会持久...我能够登录，但当我导航到其他页面（不离开域名）时，我被扔回登录页面。
你能帮我解决这个问题吗？
但是，有一个问题是，我尝试连接的网站是“HTTPS”协议。我还没有在常规HTTP上测试过这个。提前谢谢。
/*
* Web Client v1.2
* ---------------
* Date: 12/17/2010
* author: Jayson Ragasa
*/
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net;
using System.Web;
namespace Nullstring.Modules.WebClient
{
public class WebClientLibrary
{
#region vars
string _method = string.Empty;
ArrayList _params;
CookieContainer cookieko;
HttpWebRequest req = null;
HttpWebResponse resp = null;
Uri uri = null;
#endregion
#region properties
public string Method
{
set { _method = value; }
}
#endregion
#region constructor
public WebClientLibrary()
{
_method = "GET";
_params = new ArrayList();
cookieko = new CookieContainer();
}
#endregion
#region methods
public void ClearParameter()
{
_params.Clear();
}
public void AddParameter(string key, string value)
{
_params.Add(string.Format("{0}={1}", WebTools.URLEncodeString(key), WebTools.URLEncodeString(value)));
}
public string GetResponse(string URL)
{
StringBuilder response = new StringBuilder();
#region create web request
{
uri = new Uri(URL);
req = (HttpWebRequest)WebRequest.Create(URL);
req.Method = "GET";
req.GetLifetimeService();
}
#endregion
#region get web response
{
resp = (HttpWebResponse)req.GetResponse();
Stream resStream = resp.GetResponseStream();
int bytesReceived = 0;
string tempString = null;
int count = 0;
byte[] buf = new byte[8192];
do
{
count = resStream.Read(buf, 0, buf.Length);
if (count != 0)
{
bytesReceived += count;
tempString = Encoding.UTF8.GetString(buf, 0, count);
response.Append(tempString);
}
}
while (count > 0);
}
#endregion
return response.ToString();
}
public string GetResponse(string URL, bool HasParams)
{
StringBuilder response = new StringBuilder();
#region create web request
{
uri = new Uri(URL);
req = (HttpWebRequest)WebRequest.Create(URL);
req.MaximumAutomaticRedirections = 20;
req.AllowAutoRedirect = true;
req.Method = this._method;
req.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
req.KeepAlive = true;
req.CookieContainer = this.cookieko;
req.UserAgent = "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10";
}
#endregion
#region build post data
{
if (HasParams)
{
if (this._method.ToUpper() == "POST")
{
string Parameters = String.Join("&", (String[])this._params.ToArray(typeof(string)));
UTF8Encoding encoding = new UTF8Encoding();
byte[] loginDataBytes = encoding.GetBytes(Parameters);
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = loginDataBytes.Length;
Stream stream = req.GetRequestStream();
stream.Write(loginDataBytes, 0, loginDataBytes.Length);
stream.Close();
}
}
}
#endregion
#region get web response
{
resp = (HttpWebResponse)req.GetResponse();
Stream resStream = resp.GetResponseStream();
int bytesReceived = 0;
string tempString = null;
int count = 0;
byte[] buf = new byte[8192];
do
{
count = resStream.Read(buf, 0, buf.Length);
if (count != 0)
{
bytesReceived += count;
tempString = Encoding.UTF8.GetString(buf, 0, count);
response.Append(tempString);
}
}
while (count > 0);
}
#endregion
return response.ToString();
}
#endregion
}
public class WebTools
{
public static string EncodeString(string str)
{
return HttpUtility.HtmlEncode(str);
}
public static string DecodeString(string str)
{
return HttpUtility.HtmlDecode(str);
}
public static string URLEncodeString(string str)
{
return HttpUtility.UrlEncode(str);
}
public static string URLDecodeString(string str)
{
return HttpUtility.UrlDecode(str);
}
}
}
更新12月22日
GetResponse超载
public string GetResponse(string URL)
{
StringBuilder response = new StringBuilder();
#region create web request
{
//uri = new Uri(URL);
req = (HttpWebRequest)WebRequest.Create(URL);
req.Method = "GET";
req.CookieContainer = this.cookieko;
}
#endregion
#region get web response
{
resp = (HttpWebResponse)req.GetResponse();
Stream resStream = resp.GetResponseStream();
int bytesReceived = 0;
string tempString = null;
int count = 0;
byte[] buf = new byte[8192];
do
{
count = resStream.Read(buf, 0, buf.Length);
if (count != 0)
{
bytesReceived += count;
tempString = Encoding.UTF8.GetString(buf, 0, count);
response.Append(tempString);
}
}
while (count > 0);
}
#endregion
return response.ToString();
}但我仍然被扔回登录页面。
更新日期：12月23日
我尝试列出cookie，这就是我得到的内容
首先，我必须登录到webform，这个我有这个Cookie JSESSIONID = 368C0AC47305282CBCE7A566567D2942
然后我导航到另一个页面（但在同一个域上）我有一个不同的库克？ JSESSIONID = 9FA2D64DA7669155B9120790B40A592C
出了什么问题？我使用去年12月22日更新的代码
答案 0 :(得分：1)
您需要在第一个GetResponse重载中使用CookieContainer。
答案 1 :(得分：1)
如果使用GetResponse（字符串URL）覆盖导航到第二页，则它不会将cookie容器附加到请求，因此不会传递登录请求中的会话cookie（通常包含auth令牌）到服务器。因此，服务器不知道您已经登录。
更改您的代码以将cookie容器附加到所有请求，它应该可以正常工作。
或者，查看Web服务器是否接受来自无cookie客户端的登录（通过在URL参数中发送会话信息）并更改您的代码以使用该方法。