使用C＃以編程方式登錄到網頁

Question

我想登錄到網頁http：//abc/mypage/config/login.aspx並獲取http：//abc/mypage/config/config.aspx頁面的html。 我使用過webrequest並嘗試過，但是我總是在獲取登錄頁面html。

WebRequest request = WebRequest.Create("http://abc/mypage/config/login.aspx");
request.Method = "POST";

string postData = "usernameTextBox=myUsername&passwordTextBox=myPassword";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = byteArray.Length;
Stream dataStream = request.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse response = request.GetResponse();
dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string responseFromServer = reader.ReadToEnd();
reader.Close();
dataStream.Close();
response.Close();

我對此請求的標頭是：

接受
text / html，application / xhtml + xml，application / xml; q = 0.9， / ; q = 0.8 Accept-Encoding gzip，deflate Accept-Language zh-cn，en; q = 0.5 Connection keep-alive Cookie
ASP.NET_SessionId = nyifft45s13wni45bw0qer3z主機
192.168.174.16參考網址http：//abc/mypage/config/login.aspx用戶代理Mozilla / 5.0（Windows NT 6.1; WOW64; rv：39.0）Gecko / 20100101 Firefox / 39.0

我需要通過此頁面登錄並獲取config.aspx頁面的html。

任何幫助將不勝感激。

謝謝。

Answer 1

我猜該網站正在根據您的代碼和aspx頁面使用表單身份驗證。 嘗試添加一個cookie容器

    Cookiecontainer cookies = new Cookiecontainer();

   //login request to get authentication cookies.
    WebRequest request = WebRequest.Create("http://abc/mypage/config/login.aspx");
    request.Method = "POST";
    request.cookiecontainer = cookies

    //your rest of the code

  //content request to get what you need
  WebRequest request = WebRequest.Create("http://abc/mypage/config/config.aspx");
    request.Method = "POST";
    request.cookiecontainer = cookies

   //same as before

如果通過cookie進行身份驗證，則應該找回所需的東西。