public async Task <IActionResult> Index(string q, [Range(1, int.MaxValue, ErrorMessage = "页码必须大于0")] int page = 1, [Range(1, 50, ErrorMessage = "页大小必须在0到50之间")] int size = 20)
{
q = q?.Trim();
ViewBag.Keyword = q;
string key = "Search:" + HttpContext.Connection.RemoteIpAddress.ToString();
if (_cache.Exists(key) && _cache.Get <string>(key) != q)
{
//var hotSearches = RedisHelper.Get<List<KeywordsRank>>("SearchRank:Week").Take(10).ToList();
//ViewBag.hotSearches = hotSearches;
ViewBag.ErrorMsg = "10秒内只能搜索1次！";
return(View(new PageModel <ArticleDto>()));
}
;
//var list1 = _luceneService.SearchMerchs(q);
var searchResults = _searchEngine.ScoredSearch <ArticleDto>(new SearchOptions(q, page, size, new string[] { nameof(ArticleDto.Title), nameof(ArticleDto.Summary), nameof(ArticleDto.ArticleContentHtml) }));
ViewBag.Elapsed = searchResults.Elapsed;
var data = searchResults.Results.Select(r => r.Entity).ToList();
var ids = data.Select(a => a.Id).ToList();
var models = await _articleService.QueryInclude <ArticleDto>(a => ids.Contains(a.Id), nameof(Article.ArticleContent), nameof(Article.Catagory));
var pageModel = new PageModel <ArticleDto>()
{
Page = page, PageSize = size, TotalCount = searchResults.TotalHits
};
var highLighter = _searchEngine.GetHighLighter(fragmentSize: 200, maxNumFragments: 1);
foreach (var model in models)
{
model.Title = highLighter.HighLight(q, model.Title?.NoHTML());
//model.Summary = highLighter.HighLight(q, model.Summary?.NoHTML());
model.ArticleContentHtml = highLighter.HighLight(q, model.Summary?.NoHTML() + model.ArticleContentHtml?.NoHTML());
pageModel.Data.Add(model);
}
return(View(pageModel));
}