HTTP Post方法

private bool Send(string postXML)
    {
        byte[] buffer = System.Text.Encoding.Unicode.GetBytes(postXML);

        System.Net.HttpWebRequest req = (HttpWebRequest)WebRequest.Create(SendUrl);

        req.Method = "POST";
        req.ContentType = "application/x-www-form-urlencoded";
        req.ContentLength = buffer.Length;
        try
        {
            Stream reqst = req.GetRequestStream();
            reqst.Write(buffer, 0, buffer.Length);
            reqst.Flush();
            reqst.Close();
        }
        catch
        {
            return false;
           // Page.RegisterStartupScript("", "<script>alert('发送失败请检查网络');</script>");
        }

        try
        {
            HttpWebResponse res = (HttpWebResponse)req.GetResponse();
            Stream resst = res.GetResponseStream();
            StreamReader sr = new StreamReader(resst, System.Text.Encoding.GetEncoding("gb2312"),true);
            //Console.WriteLine("\nGrabbing HTTP response:\n");
            string resStr = sr.ReadToEnd();
            sr.Close();
            resst.Close();

            //返回信息分析
            bool isSucceed = SnalyseHttpResponse(resStr);

            return isSucceed;
        }
        catch
        {
            //连接失败错误
            //Page.RegisterStartupScript("", "<script>alert('网络连接出错');</script>");
            return false;
        }
    }

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