我想通过使用Windows桌面应用程序登录网站setting.fun-freak.com,仅用于学习目的。我使用了webrequest并尝试了
string formUrl = "http://setting.fun-freak.com/Account/Login.aspx";
string formParams = string.Format("ctl00$MainContent$txtUserName=loginId&ctl00$MainContent$txtPassword=password");
string cookieHeader;
WebRequest req = WebRequest.Create(formUrl);
req.ContentType = "application/x-www-form-urlencoded";
req.Method = "POST";
byte[] bytes = Encoding.ASCII.GetBytes(formParams);
req.ContentLength = bytes.Length;
using (Stream os = req.GetRequestStream())
{
os.Write(bytes, 0, bytes.Length);
}
using (StreamReader sr = new StreamReader(req.GetResponse()))
{
pageSource = sr.ReadToEnd();
}
我假设这个pageSource对象在登录页面后会有下一页的html(如果成功登录),但它包含相同的登录页面。
如何成功登录本网站并获取主页作为回应?
此外,这个(setting.fun-freak.com)我自己的网站,内置在asp.net webforms中。这是按钮点击事件代码(可能有助于挖掘问题)
UserContainer User = new UserProcessing().Authenticate(txtUserName.Text, txtPassword.Text);
if (User != null)
{
Session["User"] = User;
FormsAuthentication.RedirectFromLoginPage(txtUserName.Text, RememberMe.Checked);
}
else
{
lblMessage.Text = "Invalid credentials. Please try again";
}
任何帮助将不胜感激。
答案 0 :(得分:0)
我按原样添加了这段代码,但它仍然无效。 它取自http://msdn.microsoft.com/en-us/library/debx8sh9.aspx
// Create a request using a URL that can receive a post.
WebRequest request = WebRequest.Create("http://setting.fun-freak.com/Account/Login.aspx");
// Set the Method property of the request to POST.
request.Method = "POST";
// Create POST data and convert it to a byte array.
string postData = "ctl00$MainContent$txtUserName=UserName&ctl00$MainContent$txtPassword=Password";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
// Set the ContentType property of the WebRequest.
request.ContentType = "application/x-www-form-urlencoded";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;
// Get the request stream.
Stream dataStream = request.GetRequestStream();
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close();
// Get the response.
WebResponse response = request.GetResponse();
// Display the status.
Console.WriteLine(((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd();
// Display the content.
Console.WriteLine(responseFromServer);
// Clean up the streams.
reader.Close();
dataStream.Close();
response.Close();
问题是对象responseFromServer没有显示登录页面旁边的内容。它仅显示登录页面内容。