/// <summary>
/// 廣告主搜尋
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public string AdvertisersSearch(string key, long siteId)
{
var result = AdvertisementDAO.SearchAdvertisersItems(key, siteId);
return(Newtonsoft.Json.JsonConvert.SerializeObject(result, new Golbal.Int64Converter()));
}