System.Net.WebException：基础连接已关闭：远程主机强制关闭了一个现有连接

Question

WebClient webClient = new WebClient();
webClient.UseDefaultCredentials = true;
webClient.Proxy.Credentials = CredentialCache.DefaultCredentials;
webClient.Headers.Add("user-agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36");
string page = webClient.DownloadString(webPath + manPartNum);

正如我前面所说的，我能够在visual studio的调试模式下使其正确工作，但一旦创建了可执行文件，我就不能再读取网页了。如有任何帮助，我们将不胜感激。是什么导致了这个问题？

Answer 1

String responseFromServer = null;
var url = webPath + manPartNum;
var request = (HttpWebRequest)HttpWebRequest.Create(urlPing);
request.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36";
var response = (HttpWebResponse)request.GetResponse();
if (response.StatusCode == HttpStatusCode.OK)
{
    using (var dataStream = response.GetResponseStream())
    {
        using (var reader = new StreamReader(dataStream))
            responseFromServer = reader.ReadToEnd();
    }
}

if (!String.IsNullOrEmpty(responseFromServer))
{
}