Question

我正在尝试登录相机并在某个网页上获得json响应。当我在一些相机上做的很好。有些相机的cookie会以非常旧的日期返回。任何想法为什么会发生这种情况。

// login in requset
_request = (HttpWebRequest)WebRequest.Create(_uri);
_request.KeepAlive = true;
_request.UserAgent = "curl/7.54.1\r\n";
_request.ContentType = "application/json";
_request.ProtocolVersion = HttpVersion.Version10;
_request.Method = "POST";

using (var sw = new StreamWriter(_request.GetRequestStream()))
{
   string json = jsonCommand;

   sw.Write(json);
   sw.Flush();
   sw.Close();
}

// get cookies
request.CookieContainer = cookie;
request.EndGetRequestStream(asynchronousResult);
var cookies = response.Cookies;

foreach (Cookie cook in cookies)
{
   _cookie.Add(cook);
}

// send a request for a json response
_request = (HttpWebRequest)WebRequest.Create(_uri);
_request.KeepAlive = true;
_request.UserAgent = "curl/7.54.1\r\n";
_request.ProtocolVersion = HttpVersion.Version10;

Answer 1

成功：
相机是统一的uvc g2。我设置了日期和时间，并且能够使用上面的代码来获取json响应。唯一的问题是我必须通过NVR连接以管理摄像机，才能有时间进行同步。

成功： 一旦我管理和取消管理相机，只要我不摆弄日期时间的设置，它就会同步。

HttpWebResponse提供过期的Cookie

1 个答案: