如何用asp.net向其他服务器post一条信息

　　using System;
using System.Web;
using System.Net;
using System.IO;
using System.Text;
namespace SendMessage
{

public bool SendMsg(MsgInfo msg)
{
//create request
try
{
WebRequest req = WebRequest.Create("http://your_post_url");

//set the request parameter
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
//querystring '?msg=xxx