本文主要是介绍通过HttpWebRequest实现模拟登陆，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1>通过HttpWebRequest模拟登陆
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net.Security; using System.Security.Cryptography.X509Certificates; using System.DirectoryServices.Protocols; using System.ServiceModel.Security; using System.Net; using System.IO; using System.IO.Compression; using System.Text.RegularExpressions; namespace BaiduCang { /// <summary> /// 有关HTTP请求的辅助类 /// </summary> public class HttpWebResponseUtility { private static readonly string DefaultUserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)" ; /// <summary> /// 创建GET方式的HTTP请求 /// </summary> /// <param name="url">请求的URL</param> /// <param name="timeout">请求的超时时间</param> /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param> /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param> /// <returns></returns> public static HttpWebResponse CreateGetHttpResponse( string url, int ? timeout, string userAgent, CookieCollection cookies) { if ( string .IsNullOrEmpty(url)) { throw new ArgumentNullException( "url" ); } HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest; request.Method = "GET" ; request.UserAgent = DefaultUserAgent; if (! string .IsNullOrEmpty(userAgent)) { request.UserAgent = userAgent; } if (timeout.HasValue) { request.Timeout = timeout.Value; } if (cookies != null ) { request.CookieContainer = new CookieContainer(); request.CookieContainer.Add(cookies); } return request.GetResponse() as HttpWebResponse; } /// <summary> /// 创建POST方式的HTTP请求 /// </summary> /// <param name="url">请求的URL</param> /// <param name="parameters">随同请求POST的参数名称及参数值字典</param> /// <param name="timeout">请求的超时时间</param> /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param> /// <param name="requestEncoding">发送HTTP请求时所用的编码</param> /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param> /// <returns></returns> public static HttpWebResponse CreatePostHttpResponse( string url, IDictionary< string , string > parameters, int ? timeout, string userAgent, Encoding requestEncoding, CookieCollection cookies) { if ( string .IsNullOrEmpty(url)) { throw new ArgumentNullException( "url" ); } if (requestEncoding == null ) { throw new ArgumentNullException( "requestEncoding" ); } HttpWebRequest request = null ; //如果是发送HTTPS请求 if (url.StartsWith( "https" , StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request = WebRequest.Create(url) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version10; } else { request = WebRequest.Create(url) as HttpWebRequest; } request.Method = "POST" ; request.ContentType = "application/x-www-form-urlencoded" ; request.AllowAutoRedirect = false ; if (! string .IsNullOrEmpty(userAgent)) { request.UserAgent = userAgent; } else { request.UserAgent = DefaultUserAgent; } if (timeout.HasValue) { request.Timeout = timeout.Value; } if (cookies != null ) { request.CookieContainer = new CookieContainer(); request.CookieContainer.Add(cookies); } //如果需要POST数据 if (!(parameters == null || parameters.Count == 0)) { StringBuilder buffer = new StringBuilder(); int i = 0; foreach ( string key in parameters.Keys) { if (i > 0) { buffer.AppendFormat( "&{0}={1}" , key, parameters[key]); } else { buffer.AppendFormat( "{0}={1}" , key, parameters[key]); } i++; } byte [] data = requestEncoding.GetBytes(buffer.ToString()); using (Stream stream = request.GetRequestStream()) { stream.Write(data, 0, data.Length); } } return request.GetResponse() as HttpWebResponse; } private static bool CheckValidationResult( object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true ; //总是接受 } /// <summary> /// 获取post中input的值 /// </summary> /// <param name="content">返回的html</param> /// <returns></returns> public static Dictionary< string , string > GetPostValuesFromContent( string content) { Dictionary< string , string > dics = new Dictionary< string , string >(); StringBuilder sbPattern = new StringBuilder(); sbPattern.Append( "<input" ).Append( "[^>]*?" ).Append( "/?>" ); Regex regex = new Regex(sbPattern.ToString()); MatchCollection matchList = regex.Matches(content); foreach (Match match in matchList) { string inputValue = match.Groups[0].Value; sbPattern = new StringBuilder(); sbPattern.Append( "name=\"" ).Append( "([^\"]*?)" ).Append( "\"" ); regex = new Regex(sbPattern.ToString()); string name = regex.Match(inputValue).Groups[1].Value; sbPattern = new StringBuilder(); sbPattern.Append( "value=\"" ).Append( "([^\"]*?)" ).Append( "\"" ); regex = new Regex(sbPattern.ToString()); string value = regex.Match(inputValue).Groups[1].Value; dics.Add(name, System.Web.HttpContext.Current.Server.UrlEncode(value)); } return dics; } /// <summary> /// 获取post中input的值 /// </summary> /// <param name="content">返回的html</param> /// <returns></returns> public static Dictionary< string , string > GetPostValuesFromUrl( string url) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream responseStream = response.GetResponseStream(); StreamReader reader = new StreamReader(responseStream, Encoding.UTF8); string content = reader.ReadToEnd(); reader.Close(); responseStream.Close(); return GetPostValuesFromContent(content); } /// <summary> /// 从Headers的Cookie中获取到系统的cookie /// </summary> /// <param name="setCookie">headers中的cookie字符串</param> /// <param name="cookieName">系统cookie的name</param> /// <returns></returns> public static string GetCookieFromSetCookie( string setCookie, string cookieName) { StringBuilder sbPattern = new StringBuilder(); sbPattern.AppendFormat( "{0}=" , cookieName).Append( "(.*?)" ).Append( ";" ); Regex regex = new Regex(sbPattern.ToString()); Match match = regex.Match(setCookie); return match.Groups[1].Value; } /// <summary> /// 获取登陆后的跳转页面的html /// </summary> /// <param name="cookieName">系统cookie的name</param> /// <param name="cookieValue">系统cookie的value</param> /// <param name="redirectUrl">登陆后跳转的url</param> /// <returns></returns> public static string GetRedirctUrlHtml( string cookieName, string cookieValue, string redirectUrl, Encoding encoding) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(redirectUrl); request.Method = "GET" ; request.Headers.Add( "Cookie" , cookieName + "=" + cookieValue); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream stream = response.GetResponseStream(); StreamReader reader = new StreamReader(stream, encoding); return reader.ReadToEnd(); } } } |
2>模拟登陆demo,直接从项目中挖出来的，实现的模拟登陆客户的oa系统和erp系统的功能，然后审核代办消息，审核的功能未实现。代码实现的是模拟登陆成功后，获取跳转后的页面的html。代码中实际地址和账户非真实数据。
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Text; using System.Net; using BaiduCang; using System.IO; using System.Text.RegularExpressions; public partial class Default2 : System.Web.UI.Page { protected void Page_Load( object sender, EventArgs e) { //LoginJsjd(); //LoginOA(); LoginErp(); } public void LoginJsjd() { string loginUrl = "http://192.168.0.2/jsjd/login.aspx" ; string redirectUrl = "http://192.168.0.2/jsjd/wfi.ashx?act=audit&id=e77ff6a5-4e17-4fb6-b696-82bf5b3c717f&msgid=bc5b6d50-f315-414e-841f-e382ca1a4f8e&comment=&result=Approve" ; Encoding encoding = Encoding.GetEncoding( "gb2312" ); string cookieName = ".ASPXAUTH" ; Dictionary< string , string > parameters = new Dictionary< string , string >(); parameters.Add( "txtName" , "8888" ); parameters.Add( "txtPassword" , "8888" ); Response.Write(Login(loginUrl, loginUrl, redirectUrl, cookieName, encoding, parameters)); } public void LoginOA() { string loginUrl = "http://192.168.0.2:8090/dcwork/j_bsp_security_check/up" ; string redirectUrl = "http://192.168.0.2:8090/dcwork/processlist.cmd?method=taskinfoportal" ; Encoding encoding = Encoding.GetEncoding( "gb2312" ); string cookieName = "JSESSIONID" ; Dictionary< string , string > parameters = new Dictionary< string , string >(); parameters.Add( "j_username" , "888888" ); parameters.Add( "j_password" , "888888" ); Response.Write(Login(loginUrl, loginUrl, redirectUrl, cookieName, encoding, parameters)); } public void LoginErp() { string loginUrl = "http://192.168.0.2:8000/OA_HTML/RF.jsp?function_id=26668&resp_id=-1&resp_appl_id=-1&security_group_id=0&lang_code=ZHS¶ms=KQ0ueFd3h5ncJDQ0.532EQ&oas=NqL6dDNwywXNVCwleKSBLw" ; string portUrl = "http://192.168.0.2:8000/OA_HTML/OA.jsp?page=/oracle/apps/fnd/sso/login/webui/MainLoginPG&_ri=0&_ti=128180147&language_code=ZHS&requestUrl=&oapc=18&oas=zlyIwYnA_a_ouuYU0LTLzw.." ; string redirectUrl = "http://192.168.0.2:8000/OA_HTML/OA.jsp?OAFunc=OAHOMEPAGE" ; Encoding encoding = Encoding.GetEncoding( "gb2312" ); string cookieName = "JSESSIONID" ; Dictionary< string , string > parameters = new Dictionary< string , string >(); parameters.Add( "usernameField" , "888888" ); parameters.Add( "passwordField" , "888888" ); Response.Write(Login(loginUrl, portUrl, redirectUrl, cookieName, encoding, parameters)); } /// <summary> /// 登陆后返回指定页面的html /// </summary> /// <param name="loginUrl">登陆页面url</param> /// <param name="portUrl">登陆提交的post页面url</param> /// <param name="redirectUrl">登陆成功后跳转的页面url</param> /// <param name="cookieName">cookie名称</param> /// <param name="encoding">编码方式</param> /// <param name="nameAndPassword">用户名和密码对应的文本框的name和值</param> /// <returns></returns> public string Login( string loginUrl, string portUrl, string redirectUrl, string cookieName, Encoding encoding, Dictionary< string , string > nameAndPassword) { Dictionary< string , string > parameters = HttpWebResponseUtility.GetPostValuesFromUrl(loginUrl); //给参数字典中的用户名和密码赋值 foreach ( var item in nameAndPassword) { parameters[item.Key] = item.Value; } foreach ( var item in parameters) { Response.Write( string .Format( "{0}:{1}" , item.Key, item.Value)); Response.Write( "</br>" ); } HttpWebResponse response = HttpWebResponseUtility.CreatePostHttpResponse( portUrl, parameters, null , null , encoding, null ); string setCookie = response.Headers[ "Set-Cookie" ]; string cookie = HttpWebResponseUtility.GetCookieFromSetCookie(setCookie, cookieName); return HttpWebResponseUtility.GetRedirctUrlHtml(cookieName, cookie, redirectUrl, encoding); } } |
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