还是HttpWebRequest.Expectd在post的时候出现的问题。


我在网上看到有人说这个一个BUG,地址http://www.dotnet247.com/247reference/msgs/31/158004.aspx
但是我用2005出来的程序一样在post的时候会出现Expect: 100-continue。
这样会比IE post数据的时候多一个服务器响应。

我的代码改成如下的时候：
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
                req.PreAuthenticate = true;
                req.KeepAlive = true;
                req.ProtocolVersion = HttpVersion.Version11;
            

                req.Method = "POST";
                //req.Timeout = 60000;
                req.Accept="image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, */*";
                req.Referer = referer;
                req.Headers.Add("Accept-Language: zh-cn");
                req.ContentType = "application/x-www-form-urlencoded";
               req.Headers.Add("UA-CPU", "x86");
                req.AllowAutoRedirect = true;
                req.Headers.Add("Accept-Encoding: gzip, deflate");
                req.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)";
                req.Headers.Add("Cache-Control: no-cache");

                StringBuilder UrlEncoded = new StringBuilder();
                Char[] reserved = { '?', '=', '&' };
                byte[] SomeBytes = null;

                if (paramList != null)
                {
                    int i = 0, j;
                    while (i < paramList.Length)
                    {
                        j = paramList.IndexOfAny(reserved, i);
                        if (j == -1)
                        {
                            UrlEncoded.Append(HttpUtility.UrlEncode(paramList.Substring(i, paramList.Length - i)));
                            break;
                        }
                        UrlEncoded.Append(HttpUtility.UrlEncode(paramList.Substring(i, j - i)));
                        UrlEncoded.Append(paramList.Substring(j, 1));
                        i = j + 1;
                    }
                    SomeBytes = Encoding.UTF8.GetBytes(UrlEncoded.ToString());
                    req.ContentLength = SomeBytes.Length;

                    Stream newStream = req.GetRequestStream();
                    newStream.Write(SomeBytes, 0, SomeBytes.Length);
                    newStream.Close();
                }
                else
                {
                    req.ContentLength = 0;
                }
                req.KeepAlive = true;
                req.Expect = null;
                req.KeepAlive = true;

                string[] key1 = req.Headers.AllKeys;
                foreach (string l in key1)
                {
                    strResult += l + ":" + req.Headers[l] + "\r\n";
                }
返回的header中并没有了Expect,但是服务器的还在可以从当前请求中读出Expect: 100-continue.
请高人指教啊。

我的测试网址为:http://quack.oicp.net/header.aspx,请用post 方法访问。