StringBuilder strBuilder = new StringBuilder();

strBuilder.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?");

strBuilder.Append("<ROBOT Version=\"2.0\">");

strBuilder.Append("<DiskFreeSpace></DiskFreeSpace>");

strBuilder.Append("<MyFileName>weixin.htm</MyFileName>");

strBuilder.Append("<MyTitle>");

strBuilder.Append(TITLE);

strBuilder.Append("</MyTitle>");

strBuilder.Append("<MyURL>");

strBuilder.Append(URL);

strBuilder.Append("</MyURL>");

strBuilder.Append("<MyMedia>");

strBuilder.Append(MEDIA);

strBuilder.Append("</MyMedia>");

strBuilder.Append("<MyColumn>");

strBuilder.Append(COLUMN);

strBuilder.Append("</MyColumn>");

strBuilder.Append("<MyDownTime>");

strBuilder.Append(PUBLISHTIME);

strBuilder.Append("</MyDownTime>");

strBuilder.Append("<HaveImage>");

strBuilder.Append(0);

strBuilder.Append("</HaveImage>");

strBuilder.Append("<MyInsertTime>");

strBuilder.Append(crawTime);

strBuilder.Append("</MyInsertTime>");

strBuilder.Append("<SumImage>");

strBuilder.Append(0);

strBuilder.Append("</SumImage>");

strBuilder.Append("<MyComputerName>");

strBuilder.Append("WEIXIN-FA");

strBuilder.Append("</MyComputerName>");

strBuilder.Append("</ROBOT>");

string postData = strBuilder.ToString();

var encoding = Encoding.GetEncoding("GBK");

byte[] buffer = encoding.GetBytes(postData);

//创建链接

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(webURL);

request.Method = "post";

request.ContentLength = buffer.Length;

request.ContentType = "text/xml";

Stream newStream = request.GetRequestStream();

byte[] Lastdata = Encoding.GetEncoding("GB2312").GetBytes(postData);

newStream.Write(Lastdata, 0, Lastdata.Length);

//开始请求，并得到返回值

HttpWebResponse res = request.GetResponse() as HttpWebResponse;

StreamReader srder = new StreamReader(res.GetResponseStream(), Encoding.GetEncoding("GB2312"));

String ret = srder.ReadToEnd();

newStream.Close();