利用HttpWebRequest向服务器XML数据

public void test()<br> {<br> string msgid, srcid, destid, content;<br> msgid = "这是一个MSGID";<br> srcid = "这是一个123ID";<br> destid = "最后一个ID号";<br> content = "这是短信内容";<br> StringBuilder sb = new StringBuilder();<br> sb.Append("&lt;?xml version=/"1.0/" encoding=/"gb2312/" ?&gt;");<br> sb.Append("&lt;submit_sms&gt;");<br> sb.Append("&lt;cp_id&gt;##CPID##&lt;/cp_id&gt;");<br> sb.Append("&lt;cp_msg_id&gt;##MSGID##&lt;/cp_msg_id&gt;");<br> sb.Append("&lt;SrcTermId&gt;##SRCID##&lt;/SrcTermId&gt;");<br> sb.Append("&lt;DestTermId&gt;##DESTID##&lt;/DestTermId&gt;");<br> sb.Append("&lt;FeeType&gt;101&lt;/FeeType&gt;");<br> sb.Append("&lt;content&gt;&lt;![CDATA[##Content##]]&gt;&lt;/content&gt;");<br> sb.Append("&lt;/submit_sms&gt;");<br> string reqData = sb.ToString();<br> reqData = reqData.Replace("##CPID##", "7777");<br> reqData = reqData.Replace("##MSGID##", msgid.ToString());<br> reqData = reqData.Replace("##SRCID##", srcid.ToString());<br> reqData = reqData.Replace("##DESTID##", destid.ToString());<br> reqData = reqData.Replace("##Content##", content.ToString());<br> string url = "http://www.baidu.com“;<br> HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);<br><br> byte[] requestbytes = System.Text.Encoding.ASCII.GetBytes(reqData);<br> req.Method = "post";<br> req.ContentType = "application/x-www-form-urlencoded";<br> req.ContentLength = requestbytes.Length;<br> Stream requeststream = req.GetRequestStream();<br> requeststream.Write(requestbytes,0,requestbytes.Length);<br> requeststream.Close();<br> HttpWebResponse res=(HttpWebResponse)req.GetResponse();<br> StreamReader sr=new StreamReader(res.GetResponseStream(),System.Text.Encoding.Default);<br><br> string backstr = sr.ReadToEnd();<br> Response.Write(backstr);<br> res.Close();<br><br> }