发送HTTP请求，并且获取返回的XML,该如何处理

发送HTTP请求，并且获取返回的XML
现在需要一个服务！
定时去访问设定好的网页，
这个网页的作用就是生成XML文档

怎么用实现服务中访问网页，并且获取到返回结果？

各位大侠给小弟出个招~~~~~

[解决办法]
给你写一段假想的客户端请求代码

C# code

var SentMessage = 获取要发送的消息体();var HttpWebRequest hp = (HttpWebRequest)WebRequest.Create(url);hp.Method = "POST";hp.ContentType = "text/xml";hp.ServicePoint.Expect100Continue = false;var sentBuff = Encoding.UTF8.GetBytes(SentMessage);hp.ContentLength = sentBuff.Length;using (var sw = hp.GetRequestStream()){       sw.Write(sentBuff, 0, sentBuff.Length);       sw.Flush();       using (var wr = hp.GetResponse())       {            using (var sr = new StreamReader(wr.GetResponseStream(), Encoding.UTF8))            {                 ReceivedXml = sr.ReadToEnd();            }       }}
[解决办法]
在windows服务中
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(“”);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
System.IO.StreamReader sr = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("gb2312"));
Console.Write(sr.ReadToEnd());
sr.Close();
response.Close();

System.Net.WebClient wc = new System.Net.WebClient();
wc.Credentials = System.Net.CredentialCache.DefaultCredentials;
Byte[] pageData = wc.DownloadData("");
string html= System.Text.Encoding.Default.GetString(pageData);