c# - HttpWebResponse 上的奇怪对象处置异常

Question

我正在开发一个每 5 秒自动查询一次网站的程序。它在过去几天一直运行良好，但今天当我只是重新启动它时，它一直在下面标记的行上抛出 System.ObjectDisposedException。我应该提一下，在同一台机器上通过浏览器访问这个 URL 工作正常。

代码:

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.bitstamp.net/api/ticker/");

request.Method = "GET";

try
{
    // ObjectDisposedException thrown here
    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse()) 
    {
        using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
        {
            string resultString = reader.ReadToEnd();
            return resultString;
        }
    }
}
catch (WebException ex)
{
    // Handle it
}

堆栈跟踪:

System.ObjectDisposedException occurred
    _HResult=-2146232798
   _message=Cannot access a disposed object.
    HResult=-2146232798
    IsTransient=false
    Message=Cannot access a disposed object.
Object name: 'SslStream'.
Source=System
    ObjectName=SslStream
StackTrace:
at System.Net.Security.SslState.ValidateCreateContext(Boolean isServer, String targetHost, SslProtocols enabledSslProtocols, X509Certificate serverCertificate, X509CertificateCollection clientCertificates, Boolean remoteCertRequired, Boolean checkCertRevocationStatus, Boolean checkCertName)
 InnerException: 

我做错了什么吗？在using之前我什至没有访问响应流，如何处理它？<​​/p>

编辑: 添加了 url 和堆栈跟踪

Answer 1

稍微简化一下，只做一个:

WebRequest.Create("https://www.bitstamp.net/api/ticker/").GetResponse();

我收到 WebException“服务器违反了协议(protocol)。Section=ResponseHeader Detail=CR 后必须跟 LF”，apparently表示服务器端存在问题，一种(可能是唯一的)解决方法是将以下内容添加到您的配置文件中:

<system.net> 
  <settings> 
    <httpWebRequest useUnsafeHeaderParsing="true" /> 
  </settings> 
</system.net>

无论如何对我有用。