使用HttpWebRequest在post请求时发生异常,本地调试没有问题

Question

Content-Length怎么设的? 是不是post数据有中文,计算的Content-Length不对

Answer 1

post数据中没有中文 长度是根据传进来的参数设置的   //}
        /// <summary>
        /// Post 提交调用
        /// </summary>
        /// <param name="url">提交地址</param>
        /// <param name="param">参数</param>
        /// <param name="Timeout">超时时间</param>
        /// <returns>string</returns>
        public string webRequestPost(string url, string param, int Timeout,System.Text.Encoding code)
        {
            byte[] bs = System.Text.Encoding.Default.GetBytes(param);            HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
            req.Method = "post";
            req.Timeout = Timeout * 1000;
            req.ContentType = "application/x-www-form-urlencoded;charset=utf-8";
            req.ContentLength = bs.Length;            using (Stream reqStream = req.GetRequestStream())
            {
                reqStream.Write(bs, 0, bs.Length);
                reqStream.Flush();
            }
            using (WebResponse wr = req.GetResponse())
            {
                //在这里对接收到的页面内容进行处理                 Stream strm = wr.GetResponseStream();                StreamReader sr = new StreamReader(strm, code);                string line;                System.Text.StringBuilder sb = new System.Text.StringBuilder();                while ((line = sr.ReadLine()) != null)
                {
                    sb.Append(line + System.Environment.NewLine);
                }
                sr.Close();
                strm.Close();
                return sb.ToString();
            }
        }

Answer 2

看了两个帖子，都说和redirect相关的， 你看看http://stackoverflow.com/questions/6636009/why-does-this-exception-claim-the-code-doesnt-write-datahttp://forums.asp.net/t/1698399.aspx?Content+Length+or+Chunked+Encoding+cannot+be+set+for+an+operation+that+does+not+write+data+

Answer 3

你说本地没问题,那只有把post的url,data写log查看

Answer 4

WebResponse wr = req.GetResponse()前是没有问题的 ,参数也正常
flightdate=2014-11-23&depcity=CAN&aircity=PVG&airco=&triptype=1

Answer 5

把post改成get方式就不会报错了！