C＃WebRequest不等待GetResponse（）

Question

在尝试从使用OAUTH的服务下载数据时，我似乎遇到了HttpWebRequest的问题。我首先创建一个HttpWebRequest，然后将OAUTH信息放在Authorization标头中。但是，只要调用GetRequestStream（）（由Wireshark验证），就会发送标头。该服务期望标头和正文是同一请求的一部分，而不是单独的请求。在调用GetResponse（）之前，不应发送数据。如果您知道如何确保同时发送所有数据，请与我们联系。感谢。

private HttpWebRequest GetWebRequest(string requestURI_, string token_, string        tokenSecret_, int contentLength_)
{
    Uri requestURI = new Uri(requestURI_);
    HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(requestURI);

    request.ProtocolVersion = new Version("1.1");
    request.Expect = null;                              //Turn off the "Expect" header
    request.ServicePoint.Expect100Continue = false;
    request.SendChunked = false;
    request.ServicePoint.UseNagleAlgorithm = false;

    string authHeader = "";
    GetOAUTHHeader(out authHeader, requestURI, token_, tokenSecret_);

    request.Headers.Add("Authorization", authHeader);
    request.ContentType = "application/octet-stream";
    request.UserAgent = "DotNet3.5";
    request.Accept = "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2";
    request.Method = "POST";
    request.ContentLength = contentLength_;

    return request;

}

private string GetWebResponse()
{   
    string requestBody = "This is the request body";            
    HttpWebRequest request = GetWebRequest(requestURI_, accessToken_,    accessTokenSecret_, requestBody.Length);

    Stream requestStream = request.GetRequestStream();                 //For some reason, the headers are sent here
    StreamWriter requestWriter = new StreamWriter(requestStream);
requestWriter.Write(requestBody);
    requestWriter.Close();
    requestStream.Close();

    WebResponse response = request.GetResponse();                   //The body of the request is sent here
    StreamReader responseReader = new StreamReader(response.GetResponseStream());
    string responseInfo = responseReader.ReadToEnd();
    responseReader.Close();
    response.Close();

        return responseInfo;
}