c# asp.net获取Alexa排名数据

来源：互联网发布：网络童星传媒公司编辑：程序博客网时间：2024/05/21 06:15

using System;

using System.Collections.Generic;

using System.Text;

using System.Xml;

using System.Net;

using System.IO;

namespace BLL

{

    public class Alexa

    {

        public static int GetAlexa(string host)

        {

            string html = Net.GetHtml("http://data.alexa.com/data/?cli=10&dat=snba&ver=7.0&url=" + host);

            try

            {

                XmlDocument xml = new XmlDocument();

                xml.LoadXml(html);

                XmlNode node = xml.SelectSingleNode("/ALEXA/SD/POPULARITY");

                if (node != null && node.Attributes["TEXT"] != null)

                    return int.Parse(node.Attributes["TEXT"].Value);

            }

            catch

            {

                int a = html.IndexOf("RANK=/"");

                if (a > 0)

                {

                    int b = html.IndexOf("/"", a+6);

                    if (b>0)

                        return int.Parse(html.Substring(a+6, b-a-6));

                }

            }

            return 0;

        }

    }

}