从c＃应用程序连接到.aspx网站

我正在尝试构建c＃应用程序，它在网站中存在“更新”时通知我。网站登录表单包含3个文本框，它是login.aspx。从c＃应用程序连接到.aspx网站

我的问题是，如何将3个细节“发送”到站点并从我想在c＃中构建的应用程序进行连接（身份验证），如果可能的话，我该怎么做？我寻找任何指南或东西阅读关于这个，但没有找到。

2012-11-20 user1840196

您需要模拟Web浏览器的行为，例如：身份验证，cookie和重定向。所以WebClient类可能会帮助你 – pylover

您需要使用WebClient类。这个类的更多信息，可以在http://msdn.microsoft.com/en-us/library/system.net.webclient(v=vs.80).aspx

而在http://msdn.microsoft.com/en-us/library/system.net.webclient(v=vs.80).aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-4

来源

2012-11-20 21:31:06

谢谢，但有一个问题。我知道我需要知道页面发送的参数，但是当我使用嗅探器尝试时，我发现内容被加密为很多字母。如何做到这一点？ – user1840196

First you need post a form using c#

HttpWebRequest request = (HttpWebRequest)WebRequest.Create (args[0]); 

      // Set some reasonable limits on resources used by this request 
      request.MaximumAutomaticRedirections = 4; 
      request.MaximumResponseHeadersLength = 4; 
      // Set credentials to use for this request. 
      request.Credentials = CredentialCache.DefaultCredentials; 
      HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 

      Console.WriteLine ("Content length is {0}", response.ContentLength); 
      Console.WriteLine ("Content type is {0}", response.ContentType); 

      // Get the stream associated with the response. 
      Stream receiveStream = response.GetResponseStream(); 

      // Pipes the stream to a higher level stream reader with the required encoding format. 
      StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8); 

      Console.WriteLine ("Response stream received."); 
      Console.WriteLine (readStream.ReadToEnd()); 
      response.Close(); 
      readStream.Close();

then try to save cookie, its required to store aspnet_session_id into client for future requests

private class CookieAwareWebClient : WebClient 
{ 
    public CookieAwareWebClient() 
     : this(new CookieContainer()) 
    { } 
    public CookieAwareWebClient(CookieContainer c) 
    { 
     this.CookieContainer = c; 
    } 
    public CookieContainer CookieContainer { get; set; } 

    protected override WebRequest GetWebRequest(Uri address) 
    { 
     WebRequest request = base.GetWebRequest(address); 
     if (request is HttpWebRequest) 
     { 
      (request as HttpWebRequest).CookieContainer = this.CookieContainer; 
     } 
     return request; 
    } 
}

一个很好的例子可以找到确保您发送的和每个请求恢复aspnet_session_id 。和宾果！

我建议您阅读this。

来源

2012-11-20 21:51:11 pylover

从c＃应用程序连接到.aspx网站

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