C# httpwebrequest 有很多请求

Question

我有列表词我需要在 webrequest POST 方法上发送所有这些词 像这儿 ： 这个函数请求>

   private void RequesteUrl(string word)
    {
     //   try
       // {


            CookieContainer WeBCookies = new CookieContainer();
            HttpWebRequest url = (HttpWebRequest)WebRequest.Create("http://mbc.com/index.php");
            url.Method = "POST";
            url.UserAgent = "Mozilla/5.0 (Windows NT 10.0; rv:44.0) Gecko/20100101 Firefox/44.0";
           url.Referer = "http://mbc.com/index.php?";

            var PostData =  User.Text + "&password=" + word;
            var Data = Encoding.ASCII.GetBytes(PostData);
            url.ContentLength = Data.Length;
            url.Host = "www.mbc.com";
            url.ContentType = "application/x-www-form-urlencoded";
          //  url.Headers.Add(HttpRequestHeader.Cookie, webBrowser1.Document.Cookie);
            url.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
            url.KeepAlive = true;


            url.Headers.Add("Cookie: "+tryit);
            using (var stream = url.GetRequestStream())
            {
                stream.Write(Data, 0, Data.Length);
            }

            HttpWebResponse WebResponse = (HttpWebResponse)url.GetResponse();
            int status = (int)WebResponse.StatusCode;
            Stream ST = WebResponse.GetResponseStream();
            StreamReader STreader = new StreamReader(ST);
            string RR = STreader.ReadToEnd();


           // MessageBox.Show (status.ToString() + "   " + word);

    //    }
     //   catch (Exception ex)
     //   {
      //      MessageBox.Show(ex.Message);
     //   }

    }

我用它来加载：

 foreach (string selectword in Lists)
        {

            RequesteUrl(selectword);
  }

但 foreach 没有完成所有列表，他只完成列表中的两个！

Answer 1

是的，原因是您在请求完成后没有释放资源。由于 HTTP/1.1 只允许每台服务器同时连接两个连接，因此在两个请求之后，您将用完可用连接。这就是它挂起的原因。

您需要关闭 HttpWebResponse，并且关闭 streamreader 和 stream....

using(HttpWebResponse WebResponse = (HttpWebResponse)url.GetResponse())
{
            int status = (int)WebResponse.StatusCode;

            using(Stream ST = WebResponse.GetResponseStream())
            using(StreamReader STreader = new StreamReader(ST))
                string RR = STreader.ReadToEnd();
}