C# 模拟登录后，怎样打开登录后的网页页面？

记录下Cookei打开别的页面的时候把你登录后的Cookie发送过去。

两钻大哥，好激动啊！我的代码如下：
public class HttpHelper
    {
        public static CookieContainer Cookies = new CookieContainer();
        public static string GetHttpResponse(string url, string postdata)
        {
            try
            {
                HttpWebRequest MyRequest = (HttpWebRequest)WebRequest.Create(url);
                MyRequest.Method = "POST";
                MyRequest.ContentLength = postdata.Length;
                MyRequest.CookieContainer = Cookies;
                MyRequest.KeepAlive = true;
                MyRequest.AllowAutoRedirect = true;
                MyRequest.ContentType = "application/x-www-form-urlencoded";
                MyRequest.UserAgent = " Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20100101 Firefox/14.0.1";
                MyRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";                if (postdata != null)
                {
                    ASCIIEncoding MyEncoding = new ASCIIEncoding();
                    byte[] MyByte = MyEncoding.GetBytes(postdata);
                    Stream MyStream = MyRequest.GetRequestStream();
                    MyStream.Write(MyByte, 0, postdata.Length);
                    MyStream.Close();
                }                string getContent = null;
                Encoding myEncoding = Encoding.GetEncoding("UTF-8");
                HttpWebResponse MyResponse = (HttpWebResponse)MyRequest.GetResponse();
                if (MyResponse.StatusCode == HttpStatusCode.OK)
                {                    /*获取响应页面cookie*/
                   // MyResponse.Cookies = MyRequest.CookieContainer.GetCookies(MyRequest.RequestUri);                    //CookieCollection cook = MyResponse.Cookies;
                    //string strCook = MyRequest.CookieContainer.GetCookieHeader(MyRequest.RequestUri);
                    //MessageBox.Show("adfdfasdf");
                    Stream MyNewStream = MyResponse.GetResponseStream();
                    StreamReader MyStreamReader = new StreamReader(MyNewStream, myEncoding);
                    getContent = MyStreamReader.ReadToEnd();
                    MyStreamReader.Close();
                }
                MyResponse.Close();
                return getContent;
            }
            catch (Exception)
            {
                return string.Empty;
            }
        }
请问：登录后的cookie是保存在public static CookieContainer Cookies = new CookieContainer();中的Cookie中吗？这个Cookie是不是就是你说的做为访问登录页面需要的cookie呢？真的很希望得到你的帮助和回答，有范例代码就贴一贴吧！呵呵，再次感谢你！我是新手，上面的代码也不是很理解，这知道大概个原理和过程！

正是这个 CookieContainer。下面的登录3dezu网站并留言的代码，供参考：using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Text.RegularExpressions;
using System.Web;
using System.IO;
using System.IO.Compression;
using System.Threading;namespace login3Dezu
{
 public partial class Form1 : Form
 {
 CookieContainer cc = new CookieContainer();
 string formhash = null;
 BackgroundWorker bw = new BackgroundWorker();
 public Form1()
 {
 InitializeComponent();
 }
 private void Form1_Load(object sender, EventArgs e)
 {
 bw.WorkerReportsProgress = true;
 bw.WorkerSupportsCancellation = true;
 bw.DoWork += new DoWorkEventHandler(bw_DoWork);
 bw.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged);
 bw.RunWorkerAsync();
 } void bw_DoWork(object sender, DoWorkEventArgs e)
 {
 while (!bw.CancellationPending)
 {
 StringBuilder sb = new StringBuilder();
 Encoding code = Encoding.ASCII; bw.ReportProgress(1,"当前日期："+DateTime.Now.ToString()+"\r\n\r\n");
 // 登录页面
 bw.ReportProgress(1, "登录页面\r\n"); string p = "fastloginfield=username&username=XXXXX&password=XXXXX&quickforward=yes&handlekey=ls";
 byte[] postData = code.GetBytes(p);
 string s = Encoding.UTF8.GetString(getBytes("http://www.3dezu.com/member.php?mod=logging&action=login&loginsubmit=yes&infloat=yes&lssubmit=yes&inajax=1", cc, postData));
 // 查看积分
 bw.ReportProgress(1, "查看积分\r\n");
 s = Encoding.UTF8.GetString(getBytes("http://www.3dezu.com/home.php?mod=spacecp&ac=credit&op=base", cc, null));
 MatchCollection mc = Regex.Matches(s, @"<li[^<]*>(?[^<]+)(?<m>\d+)");
 foreach (Match m in mc)
 {
 sb.AppendLine(string.Format("{0,20} {1}", m.Groups["i"].Value, m.Groups["m"].Value));
 }
 bw.ReportProgress(1,sb.ToString()+"\r\n\r\n"); // 获取 formhash formhash = Regex.Match(s, @"(?<=formhash=)\w+").Value; // 获取留言信息，自动从163取新闻标题
 bw.ReportProgress(1, "自动获取留言\r\n");
 s = Encoding.Default.GetString(getBytes("http://news.163.com/special/0001220O/news_json.js", null, null));
 string ly = Regex.Match(s, @"[\u4e00-\u9fa5]{20,}").Value;
 if (string.IsNullOrEmpty(ly)) ly = "快乐又一天~~~~，继续Happy~~~~~~";
 bw.ReportProgress(1, "　　"+ly+"\r\n");
 // 提交签到数据 p = string.Format("formhash={0}&qdxq=kx&qdmode=1&todaysay={1}&fastreply=1", formhash, HttpUtility.UrlEncode(ly));
 postData = code.GetBytes(p);
 s = Encoding.UTF8.GetString(getBytes("http://www.3dezu.com/plugin.php?id=dsu_paulsign:sign&operation=qiandao&infloat=1&sign_as=1&inajax=1", cc, postData));
 //bw.ReportProgress(1, s); // 查看积分
 bw.ReportProgress(1, "再次查看积分\r\n");
 sb.Length = 0;
 s = Encoding.UTF8.GetString(getBytes("http://www.3dezu.com/home.php?mod=spacecp&ac=credit&op=base", cc, null));
 mc = Regex.Matches(s, @"<li[^<]*>(?[^<]+)(?<m>\d+)");
 foreach (Match m in mc)
 {
 sb.AppendLine(string.Format("{0,20} {1}", m.Groups["i"].Value, m.Groups["m"].Value));
 }
 bw.ReportProgress(1, sb.ToString() + "\r\n\r\n--------------------------------------------------------------------------------------------------------\r\n");
 DateTime c=DateTime.Now;
 DateTime dt = c.Date.AddHours(27.5); Thread.Sleep(dt.Subtract(c));
 }
 } void bw_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
 richTextBox1.AppendText(e.UserState.ToString());
 }
 // 读取网络资源，返回字节数组
 public byte[] getBytes(string url, CookieContainer cookie, byte[] postData)
 {
 byte[] data = null;
 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
 request.Timeout = 30000;
 request.AllowAutoRedirect = true;
 if (cookie != null) request.CookieContainer = cookie;
 request.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)";
 request.Headers[HttpRequestHeader.AcceptEncoding] = "gzip, deflate"; if (postData != null) // 需要 Post 数据
 {
 request.Method = "POST";
 request.ContentType = "application/x-www-form-urlencoded";
 request.ContentLength = postData.Length;
 try
 {
 Stream requestStream = request.GetRequestStream();
 requestStream.Write(postData, 0, postData.Length);
 requestStream.Close();
 }
 catch
 {
 return new byte[0];
 }
 }
 else
 {
 request.Method = "GET";
 }
 HttpWebResponse response = null;
 try
 {
 response = (HttpWebResponse)request.GetResponse();
 }
 catch (WebException ex)
 {
 response = (HttpWebResponse)ex.Response;
 } if (response == null) return new byte[0]; string ce = response.Headers[HttpResponseHeader.ContentEncoding];
 int ContentLength = (int)response.ContentLength;
 Stream s = response.GetResponseStream();
 int c = 1024 * 10;
 if (ContentLength < 0) // 不能获取数据的长度
 {
 data = new byte[c];
 MemoryStream ms = new MemoryStream();
 int l = s.Read(data, 0, c);
 while (l > 0)
 {
 ms.Write(data, 0, l);
 l = s.Read(data, 0, c);
 }
 data = ms.ToArray();
 ms.Close();
 }
 else // 数据长度已知
 {
 data = new byte[ContentLength];
 int pos = 0;
 while (ContentLength > 0)
 {
 int l = s.Read(data, pos, ContentLength);
 pos += l;
 ContentLength -= l;
 }
 }
 s.Close();
 response.Close(); if (ce == "gzip") // 若数据是压缩格式，则要进行解压
 {
 unRar(ref data);
 }
 return data; // 返回字节数组
 } private byte[] unRar(ref byte[] data) // 解压数据
 {
 try
 {
 MemoryStream js = new MemoryStream(); // 解压后的流
 MemoryStream ms = new MemoryStream(data); // 用于解压的流
 GZipStream g = new GZipStream(ms, CompressionMode.Decompress);
 byte[] buffer = new byte[10240]; // 读数据缓冲区
 int l = g.Read(buffer, 0, 10240); // 一次读 10K
 while (l > 0)
 {
 js.Write(buffer, 0, l);
 l = g.Read(buffer, 0, 10240);
 }
 g.Close();
 ms.Close();
 data = js.ToArray();
 js.Close();
 return data;
 }
 catch
 {
 return data;
 }
 } private byte[] Rar(ref byte[] data) // 压缩数据
 {
 MemoryStream ys = new MemoryStream(); // 压缩后的流
 GZipStream g = new GZipStream(ys, CompressionMode.Compress);
 g.Write(data, 0, data.Length);
 g.Close();
 data = ys.ToArray();
 ys.Close();
 return data;
 }
 }
}

谢谢4楼的回帖，非常感谢你！Best wish for you！太好了，你的代码可以让我参考下，非常感谢，希望有问题能继续得到你的帮助！

调试易

C# 模拟登录后，怎样打开登录后的网页页面？

解决方案 »