using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text.RegularExpressions;namespace WebTest
{
    public partial class Test : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string content = "<a target=\"_blank\" href=\"Product.aspx?classId=123\"><a target=\"_blank\" href=\"Product-view.aspx\"><a target=\"_blank\" href=\"Product-view.aspx?id=59\"><a target=\"_blank\" href=\"Product-view.aspx?id=11159\">";
            string newContent = content;
            Regex rg = new Regex("href=");      //正则定位到链接
            int len = 5;                        //正则字符长度
            MatchCollection mc = rg.Matches(content);
            foreach (Match m in mc)
            {
                int startIndex = m.Index + len + 1;     //定位到的URL的起始位置
                int endIndex = content.IndexOf("\"", m.Index + len + 1);    //定位到的URL的结束位置
                string originalURL = content.Substring(startIndex, endIndex - startIndex);      //获取到URL的全地址
                string newURL = "";
                newURL = originalURL.Replace(".aspx?classId=", "-class-");    //产品类型的替换
                newURL = newURL.Replace(".aspx?id=", "-");      //产品的替换
                newURL = newURL.Replace(".aspx", "");
                newURL += ".html";
                                newContent 
= newContent.Replace(originalURL +"\"", newURL +"\"");   //替换掉原URL地址为静态地址
            }
            Response.Write(string.Format("原内容：{0}<br/>新内容：{1}", content.Replace("<", "&lt;").Replace(">", "&gt;"), newContent.Replace("<", "&lt;").Replace(">", "&gt;")));
       }
    }
}