C_(WIN)实现模拟POST发送请求登录网站.doc

C#模拟登录总结 /*/ 登录 / / / / public static string Login(String url, String paramList) HttpWebResponse res = null; string strResult = ; try HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); req.Method = POST; req.ContentType = application/x-www-form-urlencoded; req.AllowAutoRedirect = false; CookieContainer cookieCon = new CookieContainer(); req.CookieContainer = cookieCon; StringBuilder UrlEncoded = new StringBuilder(); Char reserved = ?, =, & ; byte SomeBytes = null; if (paramList != null) int i = 0, j; while (i 0) String str = new String(read, 0, count); strResult += str; count = sr.Read(read, 0, 256); catch (Exception e) strResult = e.ToString(); finally if (res != null) res.Close(); return strResult; /*/ 获取页面HTML / / / / public static string getPage(String url, String paramList) HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); req.HeadersIf-None-Match = 36d0ed736e88c71:d9f; req.Referer = http:/website/login.do; CookieContainer cookieCon = new CookieContainer(); req.CookieContainer = cookieCon; req.CookieContainer.SetCookies(new Uri(url), cookieheader); HttpWebResponse res = (HttpWebResponse)req.GetResponse(); StreamReader sr = new StreamReader(res.GetResponseStream(),Encoding.Default); string strResult = sr.ReadToEnd(); sr.Close(); return strResult; 调用: string postData = userName=admin&password=pass&area=2006&Submit=%B5%C7+%C2%BC; string strLogin, strResult; strLogin = Login(http:/website/login.do, postData); strResult = getPage(http:/website/tohjtree.do, );/输出 this.webBrowser1.Document.Write(strResult);C#(WINFORM)实现模拟POST发送请求登录网站 作者：不详 来源：整理 发布时间：2007-8-5 14:29:24 发布人：Polaris 减小字体 增大字体 最近接了个小项目，用到一个技术需要模拟POST向Web服务器发送请求来进行登录，下面写一下主要代码。 string strId = admin;/用户名 string strPassword = xxxxx;/密码 /string strsubmit = YES; ASCIIEncoding encoding = new ASCIIEncoding(); string postData = username= + strId; postData += (&password= + strPassword); /postData += (&Accept= + strsubmit); byte data = encoding.GetBytes(postData); / Prepare web request. HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(/login.aspx); myRequest.Method = POST; myRequest.ContentType = application/x-www-form-urlencoded; myRequest.ContentLength = data.Length; Stream newStream = myRequest.GetRequestStream(); / Send the data. newStream.Write(data, 0, data.Length); newStream.Close(); / Get response HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse(); StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8); string content = reader.ReadToEnd(); /Response.Write(content); textBox1.Text = content; 通过HttpWebRequest 发送 POST 请求实现自动登陆 2006-09-15 16:17:12 | 作者: 景裔 字体大小: 大 | 中 | 小 怎样通过HttpWebRequest 发送 POST 请求到一个网页服务器？例如编写个程序实现自动用户登录，自动提交表单数据到网站等。假如某个页面有个如下的表单（Form）：view plaincopy to clipboardprint? 从表单可看到表单有两个表单域，一个是userid另一个是password，所以以POST形式提交的数据应该包含有这两项。其中POST的数据格式为：表单域名称1=值1&表单域名称2=值2&表单域名称3=值3要注意的是“值”必须是经过HTMLEncode的，即不能包含“=&”这些符号。本例子要提交的数据应该是：userid=value1&password=value2用C#写提交程序：view plaincopy to clipboardprint?string strId = guest; string strPassword= 123456; ASCIIEncoding encoding=new ASCIIEncoding(); string postData=userid=+strId; postData += (&password=+strPassword); byte data = encoding.GetBytes(postData); / Prepare web request. HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(http:/login.asp); myRequest.Method = POST; myRequest.ContentType=application/x-www-form-urlencoded; myRequest.ContentLength = data.Length; Stream newStream=myRequest.GetRequestStream(); / Send the data. newStream.Write(data,0,data.Length); newStream.Close(); / Get response HttpWebResponse myResponse=(HttpWebResponse)myRequest.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(),Encoding.Default); string content = reader.ReadToEnd(); Console.WriteLine(content); string strId = guest;string strPassword= 123456;ASCIIEncoding encoding=new ASCIIEncoding();string postData=userid=+strId;postData += (&password=+strPassword);byte data = encoding.GetBytes(postData);/ Prepare web request.HttpWebRequest myRequest =(HttpWebRequest)WebRequest.Create(http:/login.asp);myRequest.Method = POST;myRequest.ContentType=application/x-www-form-urlencoded;myRequest.ContentLength = data.Length;Stream newStream=myRequest.GetRequestStream();/ Send the data.newStream.Write(data,0,data.Length);newStream.Close();/ Get responseHttpWebResponse myResponse=(HttpWebResponse)myRequest.GetResponse();StreamReader reader = new StreamReader(response.GetResponseStream(),Encoding.Default);string content = reader.ReadToEnd();Console.WriteLine(content); protected static string cookieHeader; private void Page_Load(object sender, System.EventArgs e) string strReContent = string.Empty; /登录 strReContent = PostLogin(/login/submit.jsp提交的页面,提交的参数：userid=hgj0000&password=06045369,引用地址：/); /登录传递的参数需注意 /strReContent = PostLogin(/login.aspx,_VIEWSTATE=dDwtNjkzMjUyNDczO3Q8O2w8aTwzPjs%2BO2w8dDxwPHA8bDxUZXh0Oz47bDxcZTs%2BPjs%2BOzs%2BOz4%2BOz6aX2dtqkJTK%2BKbNPsjd7Op%2Fl26Iw%3D%3D&txtUserName=hxf&txtPassword=hxf0000&btnEnter=%E7%99%BB%E5%BD%95,/login.aspx); /获取页面 strReContent = GetPage(/company/getdata.jsp?code=,引用地址：/); /strReContent = GetPage(/Modules/index.aspx,/login.aspx); /可以对获得的内容进行处理：strReContent /*/ / 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 / / 登录数据提交的页面地址 / 用户登录数据 / 引用地址 / 可以返回页面内容或不返回 public static string PostLogin(string strURL,string strArgs,string strReferer) string strResult = ; HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(strURL); myHttpWebRequest.AllowAutoRedirect = true; myHttpWebRequest.KeepAlive = true; myHttpWebRequest.Accept = image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/msword, application/x-shockwave-flash, */*; myHttpWebRequest.Referer = strReferer; myHttpWebRequest.UserAgent = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 2.0.50727); myHttpWebRequest.ContentType = application/x-www-form-urlencoded; myHttpWebRequest.Method = POST; CookieCollection myCookies = null; CookieContainer myCookieContainer = new CookieContainer(); myHttpWebRequest.CookieContainer = myCookieContainer; Stream MyRequestStrearm = myHttpWebRequest.GetRequestStream(); StreamWriter MyStreamWriter = new StreamWriter(MyRequestStrearm,Encoding.ASCII); /把数据写入HttpWebRequest的Request流 MyStreamWriter.Write(strArgs); /关闭打开对象 MyStreamWriter.Close(); MyRequestStrearm.Close(); HttpWebResponse response = null; System.IO.StreamReader sr = null; response = (HttpWebResponse)myHttpWebRequest.GetResponse(); cookieHeader = myHttpWebRequest.CookieContainer.GetCookieHeader(new Uri(strURL); HttpContext.Current.Application.Lock(); HttpContext.Current.ApplicationcookieHeader = cookieHeader; HttpContext.Current.Application.UnLock(); myCookies = response.Cookies; sr = new System.IO.StreamReader(response.GetResponseStream(),Encoding.GetEncoding(gb2312); / /utf-8 strResult = sr.ReadToEnd(); return strResult; /*/ / 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 / / 获取网站的某页面的地址 / 引用的地址 / 返回页面内容 public static string GetPage(string strURL,string strReferer) string strResult = ; HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(strURL); myHttpWebRequest.ContentType = text/html; myHttpWebRequest.Method = GET; myHttpWebRequest.Referer = strReferer; myHttpWebRequest.Headers.Add(cookie:+ cookieHeader); HttpWebResponse response = null; System.IO.StreamReader sr = null; response = (HttpWebResponse)myHttpWebRequest.GetResponse(); sr = new System.IO.StreamReader(response.GetResponseStream(), Encoding.GetEncoding(gb2312); / /utf-8 strResult = sr.ReadToEnd(); return strResult; C#三种模拟自动登录和提交POST信息的实现方法上一篇 / 下一篇 2008-03-21 11:07:20 / 个人分类：转载 查看( 80 ) / 评论( 0 ) / 评分( 0 / 0 ) 转自：随风技术中心 在实际编程过程中，我们经常会遇到验证身份、程序升级网络投票会员模拟登陆等需要，C#给我们提供了以下的实现方法： 网页自动登录和提交POST信息的核心就是分析网页的源代码（HTML），在C#中，可以用来提取网页HTML的组件比较多，常用的用WebBrowser、WebClient、HttpWebRequest这三个。以下就分别用这三种方法来实现: 1、WebBrowser是个迷你浏览器，其特点是Post时不用关心Cookie、内置JS等问题 WebBrowser是VS2005新提供的组件（其实就是封装了IE接口），实现POST功能一般在webBrowser的DocumentCompleted中分析HtmlDocument 来实现，代码如下： HtmlElement ClickBtn =null; if (e.Url.ToString().ToLower().IndexOf(xxx.htm) 0) /登陆页面 HtmlDocument doc = webBrowser1.Document; for (int i = 0; i doc.All.Count ; i+) if (doc.Alli.TagName.ToUpper().Equals(INPUT) switch (doc.Alli.Name) case userCtl: doc.Alli.InnerText = user01; break; case passCt1: doc.Alli.InnerText = mypass; break; case B1: ClickBtn = doc.Alli; /提交按钮 break; ClickBtn.InvokeMember(Click); /执行按扭操作 2、WebClient封装了HTTP的一些类，操作简单，相较于webBrowser，特点是可以自设代理，缺点是对COOKIE的控制 WebClient的运行全在后台，并且提供了异步操作的能力，这样很方便并发多个任务，然后等待结果的返回，再逐个处理。多任务异步调用的代码如下： private void StartLoop(int ProxyNum) WebClient wcArray = new WebClientProxyNum; /初始化 for (int idArray = 0; idArray ProxyNum;idArray+) wcArrayidArray = new WebClient(); wcArrayidArray.OpenReadCompleted += new OpenReadCompletedEventHandler(Pic_OpenReadCompleted2); wcArrayidArray.UploadDataCompleted += new UploadDataCompletedEventHandler(Pic_UploadDataCompleted2); try . wcArrayidArray.Proxy = new WebProxy(proxy1, port); wcArrayidArray.OpenReadAsync(new Uri(/tp.asp?Id=129); /打开WEB; proxy = null; catch private void Pic_OpenReadCompleted2(object sender, OpenReadCompletedEventArgs e) if (e.Error = null) string textData = new StreamReader(e.Result, Encoding.Default).ReadToEnd(); /取返回信息 . String cookie = (WebClient)sender).ResponseHeadersSet-Cookie; (WebClient)sender).Headers.Add(Content-Type, application/x-www-form-urlencoded); (WebClient)sender).Headers.Add(Accept-Language, zh-cn); (WebClient)sender).Headers.Add(Cookie, cookie); string postData = . byte byteArray = Encoding.UTF8.GetBytes(postDat