用httpwebrequest/httpwebresponse向服务器POST发送及接收数据

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
try
{
CookieContainer cookies = new CookieContainer();
string url = "http://www.alimama.com/membersvc/member/login.htm";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
WebProxy proxy = new WebProxy("10.167.128.116", 808);
request.Proxy = proxy;
request.AllowAutoRedirect = true;
request.KeepAlive = true;
request.ContentType = "application/x-www-form-urlencoded";
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3 (.NET CLR 3.5.30729)";
request.CookieContainer = cookies;
request.Method = "POST";

string postData = "action=MembersAction&event_submit_do_login=true&forward=&query_string=&_fmm.l._0.l=dsf%40163.com&originalLogpasswd=fsf325252&_fmm.l._0.lo=25baad9d7da3fbb9c7c95df09e62fbbf&dologin=";

byte[] post = System.Text.Encoding.ASCII.GetBytes(postData);
request.ContentLength = post.Length;

//下面是发送数据的字节流
Stream MyStream = request.GetRequestStream();
MyStream.Write(post, 0, post.Length);
MyStream.Close();

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);

string result = reader.ReadToEnd();

reader.Close();

Console.Write(cookies.Count);

StreamWriter writer = new StreamWriter("c://1.txt");
writer.Write(result);
writer.Close();

Console.Write("ok");

}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
}
}