c# - GetWebResponse 在 Windows 7 上非常慢

Question

我已经尝试了所有的设置，我在互联网上发现可以使 C# webclient 在 Windows7 机器上运行得更快 无济于事。 Windows XP 机器上的相同 exe 对每个请求的响应时间少于 100 毫秒。

我已经覆盖了派生类中的 GetWebRequest 函数 System.Web.Services.Protocols.SoapHttpClientProtocol

    protected override WebRequest GetWebRequest(Uri address)
    {
        //ServicePointManager.UseNagleAlgorithm = false;
        HttpWebRequest.DefaultWebProxy = null;
        ServicePointManager.DefaultConnectionLimit = 4096;
        ServicePointManager.Expect100Continue = false;
        System.Net.ServicePointManager.CheckCertificateRevocationList = false;
        HttpWebRequest request = (HttpWebRequest)base.GetWebRequest(address);
        request.Proxy = HttpWebRequest.DefaultWebProxy;

        return (WebRequest)request;
    }

protected 覆盖 WebResponse GetWebResponse(WebRequest 请求) {

        HttpWebResponse response = null;
        //HttpWebRequest.DefaultWebProxy = null;
        //ServicePointManager.Expect100Continue = false;
        response = (HttpWebResponse)base.GetWebResponse(request);
        return response;
    }

我还在 machine.config .Net4.0 文件夹中添加了套接字跟踪设置 它总是在输出窗口中等待下面的语句 7-15 秒

System.Net.Sockets Verbose: 0 : [6088] Socket#54042743::Receive()

希望一些冠军已经解决了这个问题

Answer 1

尝试使用 GetResponse 类并检查您是否发现一些差异:

HttpWebRequest wrequest = (HttpWebRequest) WebRequest.Create(objeto.Url);

//Get Response
HttpWebResponse wresp = (HttpWebResponse) wrequest.GetResponse();

//get Response Stream
StreamReader sr = new StreamReader(wresp.GetResponseStream());

//Get string content
string respuestastring = sr.ReadToEnd();