public class MvcSiteMap

    {

        [XmlAttribute]

        public int ID { get; set; }

        [XmlAttribute]

        public string Title { get; set; }

        [XmlAttribute]

        public string Url { get; set; }

        [XmlAttribute]

        public int ParnetID { get; set; }

        public MvcSiteMap Parent { get; set; }

    }

    public class MvcSiteMapList

    {

        public List<MvcSiteMap> MvcSiteMaps { get; set; }

    }

 public class MvcSiteMapFactory

    {

        private static List<MvcSiteMap> siteMapList

        {

            get

            {

                if (string.IsNullOrWhiteSpace(SiteMapString))

                    throw new ArgumentException("请为在web.config中配置SiteMapString节点,以支持网站地图功能");

                return ConfigCache.ConfigFactory.Instance.GetConfig<MvcSiteMapList>(System.Web.HttpContext.Current.Server.MapPath(SiteMapString)).MvcSiteMaps;

            }

        }

        private static string SiteMapString = System.Configuration.ConfigurationManager.AppSettings["SiteMapString"] ?? string.Empty;

        /// <summary>

        /// 生成站点地图

        /// </summary>

        /// <param name="url"></param>

        /// <returns></returns>

        public static MvcHtmlString GeneratorSiteMap(string url)

        {

            StringBuilder str = new StringBuilder();

            List<string> pathList = new List<string>();

            MvcSiteMap current = GetSiteMap(url);

            GetFather(current, pathList);

            pathList.Reverse();

            pathList.ForEach(i =>

            {

                str.AppendFormat("<span style='padding:0 5px;'>{0}</span>>", i);

            });

            string result = str.ToString();

            if (!string.IsNullOrWhiteSpace(result))

                result = result.Remove(str.ToString().Length - );

            return MvcHtmlString.Create(result);

        }

        static MvcSiteMap GetSiteMap(string url)

        {

            return siteMapList.FirstOrDefault(i => i.Url == url);

        }

        /// <summary>

        /// 递归找老祖宗

        /// </summary>

        /// <param name="father"></param>

        static void GetFather(MvcSiteMap father, List<string> pathList)

        {

            if (father != null)

            {

                pathList.Add(string.Format("<a href={0}>{1}</a>", father.Url, father.Title));

                father.Parent = siteMapList.FirstOrDefault(i => i.ID == father.ParnetID);

                GetFather(father.Parent, pathList);

            }

        }

    }