C# 服务器违反了协议。截面=c中的ResponseStatusLine#

我花了一整天的时间试图解决这个问题。我有一个定制的Web服务器，Chrome或POSTman ReST客户端对它的请求可以正常工作。当我在c#中使用webclient或httpwebrequest时，我得到：服务器违反了协议。尝试将zip文件传输到客户端时，Section=ResponseStatusLine

我试过：

public static bool SetAllowUnsafeHeaderParsing20()
{
    //Get the assembly that contains the internal class
    Assembly aNetAssembly = Assembly.GetAssembly(typeof(System.Net.Configuration.SettingsSection));
    if (aNetAssembly != null)
    {
        //Use the assembly in order to get the internal type for the internal class
        Type aSettingsType = aNetAssembly.GetType("System.Net.Configuration.SettingsSectionInternal");
        if (aSettingsType != null)
        {
            //Use the internal static property to get an instance of the internal settings class.
            //If the static instance isn't created allready the property will create it for us.
            object anInstance = aSettingsType.InvokeMember("Section", BindingFlags.Static | BindingFlags.GetProperty | BindingFlags.NonPublic, null, null, new object[] { });
            if (anInstance != null)
            {
                //Locate the private bool field that tells the framework is unsafe header parsing should be allowed or not
                FieldInfo aUseUnsafeHeaderParsing = aSettingsType.GetField("useUnsafeHeaderParsing", BindingFlags.NonPublic | BindingFlags.Instance);
                if (aUseUnsafeHeaderParsing != null)
                {
                    aUseUnsafeHeaderParsing.SetValue(anInstance, true);
                    return true;
                }
            }
        }
    }
    return false;
}

及

可以在以下位置查看Web服务器响应：

http://gplus2.net:9532/97e456f0-9b57-4315-b03d-40a67f76d440/transfer.zip

---

非常感谢您的任何帮助，因为我已经没有任何想法了。这显然是一个格式不正确的服务器头，但我已将其限制在最低限度。

我遇到了相同的问题，并使用以下方法解决了它。我创建了一个覆盖GetWebRequestMethod的自定义web客户端

  class CustomWebClient : WebClient
{
    /// <summary>
    /// Returns a <see cref="T:System.Net.WebRequest" /> object for the specified resource.
    /// </summary>
    /// <param name="address">A <see cref="T:System.Uri" /> that identifies the resource to request.</param>
    /// <returns>
    /// A new <see cref="T:System.Net.WebRequest" /> object for the specified resource.
    /// </returns>
    protected override WebRequest GetWebRequest(Uri address)
    {
        WebRequest request = base.GetWebRequest(address);
        if (request is HttpWebRequest)
        {
            (request as HttpWebRequest).KeepAlive = false;
        }
        return request;
    }
}

---

我有同样的问题，我用下面的方法解决了它。我创建了一个覆盖GetWebRequestMethod的自定义web客户端

  class CustomWebClient : WebClient
{
    /// <summary>
    /// Returns a <see cref="T:System.Net.WebRequest" /> object for the specified resource.
    /// </summary>
    /// <param name="address">A <see cref="T:System.Uri" /> that identifies the resource to request.</param>
    /// <returns>
    /// A new <see cref="T:System.Net.WebRequest" /> object for the specified resource.
    /// </returns>
    protected override WebRequest GetWebRequest(Uri address)
    {
        WebRequest request = base.GetWebRequest(address);
        if (request is HttpWebRequest)
        {
            (request as HttpWebRequest).KeepAlive = false;
        }
        return request;
    }
}

---

我与这个问题斗争了很长一段时间，最终问题是我添加到IIS的自定义头。。。我从某处复制了值，它包含{cr}：

打开IIS管理器->转到网站->在内容视图上，选择“响应标题”

---

检查IIS上的自定义标头，如果不需要，请删除标头，并查看标头是否有格式错误的值。

我与该问题斗争了很长时间，最终问题是我添加到IIS中的自定义标头。。。我从某处复制了值，它包含{cr}：

打开IIS管理器->转到网站->在内容视图上，选择“响应标题”

---

检查IIS上的自定义头，如果不需要，则删除头，并查看头是否有格式错误的值。

使用

httpClient.PostAsync

？我没有收到您的消息。使用

httpClient.PostAsync

？我没有收到您的消息。

  class CustomWebClient : WebClient
{
    /// <summary>
    /// Returns a <see cref="T:System.Net.WebRequest" /> object for the specified resource.
    /// </summary>
    /// <param name="address">A <see cref="T:System.Uri" /> that identifies the resource to request.</param>
    /// <returns>
    /// A new <see cref="T:System.Net.WebRequest" /> object for the specified resource.
    /// </returns>
    protected override WebRequest GetWebRequest(Uri address)
    {
        WebRequest request = base.GetWebRequest(address);
        if (request is HttpWebRequest)
        {
            (request as HttpWebRequest).KeepAlive = false;
        }
        return request;
    }
}

using (CustomWebClient client = new CustomWebClient())
        {
            client.Headers[HttpRequestHeader.Authorization] = "Basic " + base64String;
            responseData = client.DownloadData(baseUri);
        }