c# winform实现网页上用户自动登陆,模拟网站登录
时间：2010-08-19 来源：lcqjiyi
| using System; |
| 002 | using System.Collections.Generic; |
| 003 | using System.Text; |
| 004 | using System.Net; |
| 005 | using System.IO; |
| 006 |
| 007 | namespace Czt.Web |
| 008 | { |
| 009 | /// <summary> |
| 010 | /// 实现网站登录类 |
| 011 | /// </summary> |
| 012 | public class Post |
| 013 | { |
| 014 | /// <summary> |
| 015 | /// 网站Cookies |
| 016 | /// </summary> |
| 017 | private string _cookieHeader = string.Empty; |
| 018 | public string CookieHeader |
| 019 | { |
| 020 | get |
| 021 | { |
| 022 | return _cookieHeader; |
| 023 | } |
| 024 | set |
| 025 | { |
| 026 | _cookieHeader = value; |
| 027 | } |
| 028 | } |
| 029 | /// <summary> |
| 030 | /// 网站编码 |
| 031 | /// </summary> |
| 032 | private string _code = string.Empty; |
| 033 | public string Code |
| 034 | { |
| 035 | get { return _code; } |
| 036 | set { _code = value; } |
| 037 | } |
| 038 |
| 039 |
| 040 | private string _pageContent = string.Empty; |
| 041 | public string PageContent |
| 042 | { |
| 043 | get { return _pageContent; } |
| 044 | set { _pageContent = value; } |
| 045 | } |
| 046 |
| 047 | private Dictionary<string, string> _para = new Dictionary<string, string>(); |
| 048 | public Dictionary<string, string> Para |
| 049 | { |
| 050 | get { return _para; } |
| 051 | set { _para = value; } |
| 052 | } |
| 053 |
| 054 |
| 055 | /**/ |
| 056 | /// <summary> |
| 057 | /// 功能描述：模拟登录页面，提交登录数据进行登录，并记录Header中的cookie |
| 058 | /// </summary> |
| 059 | /// <param name="strURL">登录数据提交的页面地址</param> |
| 060 | /// <param name="strArgs">用户登录数据</param> |
| 061 | /// <param name="strReferer">引用地址</param> |
| 062 | /// <param name="code">网站编码</param> |
| 063 | /// <returns>可以返回页面内容或不返回</returns> |
| 064 | public string PostData(string strURL, string strArgs, string strReferer, string code, string method) |
| 065 | { |
| 066 | return PostData(strURL, strArgs, strReferer, code, method, string.Empty); |
| 067 | } |
| 068 | public string PostData(string strURL, string strArgs, string strReferer, string code, string method, string contentType) |
| 069 | { |
| 070 | try |
| 071 | { |
| 072 | string strResult = ""; |
| 073 | HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(strURL); |
| 074 | myHttpWebRequest.AllowAutoRedirect = true; |
| 075 | myHttpWebRequest.KeepAlive = true; |
| 076 | myHttpWebRequest.Accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/msword, application/x-shockwave-flash, */*"; |
| 077 | myHttpWebRequest.Referer = strReferer; |
| 078 |
| 079 |
| 080 | myHttpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 2.0.50727)"; |
| 081 |
| 082 | if (string.IsNullOrEmpty(contentType)) |
| 083 | { |
| 084 | myHttpWebRequest.ContentType = "application/x-www-form-urlencoded"; |
| 085 | } |
| 086 | else |
| 087 | { |
| 088 | myHttpWebRequest.ContentType = "contentType"; |
| 089 | } |
| 090 |
| 091 | myHttpWebRequest.Method = method; |
| 092 |
| 093 | myHttpWebRequest.Headers.Add("Accept-Encoding", "gzip, deflate"); |
| 094 |
| 095 | if (myHttpWebRequest.CookieContainer == null) |
| 096 | { |
| 097 | myHttpWebRequest.CookieContainer = new CookieContainer(); |
| 098 | } |
| 099 |
| 100 | if (this.CookieHeader.Length > 0) |
| 101 | { |
| 102 | myHttpWebRequest.Headers.Add("cookie:" + this.CookieHeader); |
| 103 | myHttpWebRequest.CookieContainer.SetCookies(new Uri(strURL), this.CookieHeader); |
| 104 | } |
| 105 |
| 106 |
| 107 |
| 108 | byte[] postData = Encoding.GetEncoding(code).GetBytes(strArgs); |
| 109 | myHttpWebRequest.ContentLength = postData.Length; |
| 110 |
| 111 | System.IO.Stream PostStream = myHttpWebRequest.GetRequestStream(); |
| 112 | PostStream.Write(postData, 0, postData.Length); |
| 113 | PostStream.Close(); |
| 114 |
| 115 | HttpWebResponse response = null; |
| 116 | System.IO.StreamReader sr = null; |
| 117 | response = (HttpWebResponse)myHttpWebRequest.GetResponse(); |
| 118 |
| 119 |
| 120 |
| 121 | if (myHttpWebRequest.CookieContainer != null) |
| 122 | { |
| 123 | this.CookieHeader = myHttpWebRequest.CookieContainer.GetCookieHeader(new Uri(strURL)); |
| 124 | } |
| 125 |
| 126 | sr = new System.IO.StreamReader(response.GetResponseStream(), Encoding.GetEncoding(code)); // //utf-8 |
| 127 | strResult = sr.ReadToEnd(); |
| 128 | sr.Close(); |
| 129 | response.Close(); |
| 130 | return strResult; |
| 131 | } |
| 132 | catch (Exception ex) |
| 133 | { |
| 134 | Utilities.Document.Create("C:\\error.log", strArgs, true, Encoding.UTF8); |
| 135 | } |
| 136 | return string.Empty; |
| 137 | } |
| 138 |
| 139 | /**/ |
| 140 | /// <summary> |
| 141 | /// 功能描述：在PostLogin成功登录后记录下Headers中的cookie，然后获取此网站上其他页面的内容 |
| 142 | /// </summary> |
| 143 | /// <param name="strURL">获取网站的某页面的地址</param> |
| 144 | /// <param name="strReferer">引用的地址</param> |
| 145 | /// <returns>返回页面内容</returns> |
| 146 | public string GetPage(string strURL, string strReferer, string code) |
| 147 | { |
| 148 | return GetPage(strURL, strReferer,code,string.Empty); |
| 149 | } |
| 150 | public string GetPage(string strURL, string strReferer,string code,string contentType) |
| 151 | { |
| 152 | string strResult = ""; |
| 153 | HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(strURL); |
| 154 | myHttpWebRequest.AllowAutoRedirect = true; |
| 155 | myHttpWebRequest.KeepAlive = false; |
| 156 | myHttpWebRequest.Accept = "*/*"; |
| 157 | myHttpWebRequest.Referer = strReferer; |
| 158 | myHttpWebRequest.Headers.Add("Accept-Encoding", "gzip, deflate"); |
| 159 |
| 160 | myHttpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 2.0.50727)"; |
| 161 | if (string.IsNullOrEmpty(contentType)) |
| 162 | { |
| 163 | myHttpWebRequest.ContentType = "application/x-www-form-urlencoded"; |
| 164 | } |
| 165 | else |
| 166 | { |
| 167 | myHttpWebRequest.ContentType = contentType; |
| 168 | } |
| 169 | myHttpWebRequest.Method = "GET"; |
| 170 |
| 171 | if (myHttpWebRequest.CookieContainer == null) |
| 172 | { |
| 173 | myHttpWebRequest.CookieContainer = new CookieContainer(); |
| 174 | } |
| 175 |
| 176 | if (this.CookieHeader.Length > 0) |
| 177 | { |
| 178 | myHttpWebRequest.Headers.Add("cookie:" + this.CookieHeader); |
| 179 | myHttpWebRequest.CookieContainer.SetCookies(new Uri(strURL), this.CookieHeader); |
| 180 | } |
| 181 |
| 182 |
| 183 | HttpWebResponse response = null; |
| 184 | System.IO.StreamReader sr = null; |
| 185 | response = (HttpWebResponse)myHttpWebRequest.GetResponse(); |
| 186 |
| 187 |
| 188 | Stream streamReceive; |
| 189 | string gzip = response.ContentEncoding; |
| 190 |
| 191 | if (string.IsNullOrEmpty(gzip) || gzip.ToLower() != "gzip") |
| 192 | { |
| 193 | streamReceive = response.GetResponseStream(); |
| 194 | } |
| 195 | else |
| 196 | { |
| 197 | streamReceive = new System.IO.Compression.GZipStream(response.GetResponseStream(), System.IO.Compression.CompressionMode.Decompress); |
| 198 | } |
| 199 |
| 200 | sr = new System.IO.StreamReader(streamReceive, Encoding.GetEncoding(code)); |
| 201 |
| 202 | if (response.ContentLength > 1) |
| 203 | { |
| 204 | strResult = sr.ReadToEnd(); |
| 205 | } |
| 206 | else |
| 207 | { |
| 208 | char[] buffer=new char[256]; |
| 209 | int count = 0; |
| 210 | StringBuilder sb = new StringBuilder(); |
| 211 | while ((count = sr.Read(buffer, 0, buffer.Length)) > 0) |
| 212 | { |
| 213 | sb.Append(new string(buffer)); |
| 214 | } |
| 215 | strResult = sb.ToString(); |
| 216 | } |
| 217 | sr.Close(); |
| 218 | response.Close(); |
| 219 | return strResult; |
| 220 | } |
| 221 |
| 222 | } |
| 223 | } |
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