public async Task <IActionResult> Search(string keywords, int page = 1)
        {
            int            count         = 0;
            int            pageSize      = 4;
            List <Article> list          = null;
            List <Article> recommendList = null;

            //recommendList = _articleBusiness.GetIQueryableList(m => m.PageView > 50).Take(10).OrderByDescending(m=>m.CreateTime).ToList();
            recommendList = await _articleBusiness.GetListAsync(m => m.PageView > 50, 10, m => m.CreateTime, false);

            if (!string.IsNullOrWhiteSpace(keywords))
            {
                List <int>    ids    = LuceneIndexHelper.Search(keywords, page, pageSize, out count);
                List <string> fields = new List <string>()
                {
                    "Id", "Title", "Summary", "Cover"
                };
                list = _articleBusiness.GetDataListByIds(fields, "id", ids);
            }
            ViewBag.Keywords      = keywords;
            ViewBag.RecommendList = recommendList;
            ViewBag.Count         = count;
            ViewBag.PageIndex     = page;
            ViewBag.TotalPage     = (int)Math.Ceiling(count / (decimal)pageSize);
            return(View(list));
        }