求助！ 获取cookie

zk9474

问一下怎么获取网页的cookie，我post提交成功了，但是获取不了，
放一下代码，

[C#] 纯文本查看 复制代码

private string PostHtml(string Url, string Postdata)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
            request.Method = "post";
            request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
            request.ContentType = "application/x-www-form-urlencoded";//application/x-www-form-urlencoded
            request.UserAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0";
            CookieContainer objcok = new CookieContainer();//ASP.NET_SessionId=pv5lnoqpesytpvqfk23raa55; path=/; domain=jw.lzzy.net; HttpOnly
            objcok.Add(new Uri("http://jw.lzzy.net"), new Cookie("ASP.NET_SessionId", "pv5lnoqpesytpvqfk23raa55"));
            request.CookieContainer=objcok;
            Encoding encoding = Encoding.Default;
            byte[] buffer = encoding.GetBytes(Postdata);
            request.ContentLength = buffer.Length;
            request.GetRequestStream().Write(buffer, 0, buffer.Length);
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream stream = response.GetResponseStream();
            StreamReader read = new StreamReader(stream, Encoding.GetEncoding("utf-8"));
            var a = response.Cookies;
            return read.ReadToEnd();
        }

这是什么况呢？？
火狐一下子看到了、、

站长苏飞

    var a = response.Header["set-cookie"];

zk9474

站长苏飞 发表于 2014-6-9 08:35
var a = response.Header["set-cookie"];

飞哥，你看一下，还是不得波，。。
同样的方法，我测试了获取百度的，就可以。。
这个不知为何，
http://jw.lzzy.net/st/login.aspx
上面就是那个网页，，
飞哥能帮我看一下吗