C# 为采集网站需首先登陆，请问怎么模拟登陆

Question

网站登陆页面：http://account.aiweibang.com/account/login.html
怎样实现模拟登陆，另外登陆后采集是否需要 cookie， cookie怎么采集，请提供解决方案并完成实际测试。

Answer 1

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

namespace Q691615
{
    class Program
    {
        static void Main(string[] args)
        {
            CookieContainer cookies = new CookieContainer();
            string url = "http://account.aiweibang.com/api/account/account/login_phone";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
            request.Method = "POST";
            request.UserAgent = "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.75 Safari/537.36";
            request.CookieContainer = cookies;
            int icurrtime = (int)new TimeSpan(DateTime.Now.Ticks - new DateTime(1970, 1, 1).Ticks).TotalSeconds;
            string currtime = icurrtime.ToString();
            request.Headers.Add("Cookie: Hm_lvt_45cdb9a58c4dd401ed07126f3c04d3c4=" + currtime + "; Hm_lpvt_45cdb9a58c4dd401ed07126f3c04d3c4=" + currtime);
            string postdata = "phone=136****&password=1*****"; //注意这里的用户名密码需要还原成你的
            byte[] postdataByte = Encoding.UTF8.GetBytes(postdata);
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = postdataByte.Length;
            Stream st;
            st = request.GetRequestStream();
            st.Write(postdataByte, 0, postdataByte.Length);
            st.Close();
            var response = (HttpWebResponse)request.GetResponse();
            StreamReader readd = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
            string context = readd.ReadToEnd();
            response.Close();
            string token = Regex.Match(context, @"(?<=token\""\:\"")[^\""]+").Value;
            url = "http://account.aiweibang.com/api/account/account/info";
            request = (HttpWebRequest)WebRequest.Create(url);
            request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
            request.Method = "POST";
            request.UserAgent = "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.75 Safari/537.36";
            request.CookieContainer = cookies;
            request.Headers.Add("Cookie: Hm_lvt_45cdb9a58c4dd401ed07126f3c04d3c4=" + currtime + "; Hm_lpvt_45cdb9a58c4dd401ed07126f3c04d3c4=" + currtime + " awbYHQXTK=" + token);
            request.Headers.Add("X-CLIENT:web");
            request.Headers.Add("X-TOKEN:" + token);
            request.Headers.Add("X-VERSION:1.0");
            postdata = "";
            postdataByte = Encoding.UTF8.GetBytes(postdata);
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = postdataByte.Length;            
            st = request.GetRequestStream();
            st.Write(postdataByte, 0, postdataByte.Length);
            st.Close();
            response = (HttpWebResponse)request.GetResponse();
            readd = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
            context = readd.ReadToEnd();
            response.Close();
            Console.WriteLine(context);
        }
    }
}