大家好,又见面了,我是全栈君
C#登录网站实际上就是模拟浏览器提交表单,然后记录浏览器响应返回的会话Cookie值,再次发送请求时带着这个会话cookie值去请求就可以实现模拟登录的效果了。
如下类CookieAwareWebClient实现在发送请求时都带着cookie。
public class CookieAwareWebClient : WebClient
{/* 何问起 hwq2.com */
private CookieContainer cookie = new CookieContainer();
protected override WebRequest GetWebRequest(Uri address)
{
WebRequest request = base.GetWebRequest(address);
if (request is HttpWebRequest)
{
(request as HttpWebRequest).CookieContainer = cookie;
}
return request;
}
}/* 何问起 hovertree.com */
如下是模拟表单提交登录的使用示例:
var client = new CookieAwareWebClient();
client.BaseAddress = @"https://hovertree.net/any/base/url/";
var loginData = new NameValueCollection();
loginData.Add("login", "YourLogin");
loginData.Add("password", "YourPassword");
client.UploadValues("login.php", "POST", loginData);
//Now you are logged in and can request pages
string htmlSource = client.DownloadString("index.php");/* 何问起 hwq2.com */
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