public ActionResult Search(string txtSearch, int id = 1)
{
int pageNum = 1;
int currentPageNo = id;
IndexSearcher search = new IndexSearcher(directory, true);
BooleanQuery bQuery = new BooleanQuery();
//总的结果条数
List <Article> list = new List <Article>();
int recCount = 0;
//处理搜索关键词
txtSearch = LuceneHelper.GetKeyWordsSplitBySpace(txtSearch);
//多个字段查询 标题和内容title, content
MultiFieldQueryParser parser = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_30, new string[] { "title", "Content" }, new PanGuAnalyzer());
Query query = parser.Parse(txtSearch);
//Occur.Should 表示 Or , Occur.MUST 表示 and
bQuery.Add(query, Occur.MUST);
if (bQuery != null && bQuery.GetClauses().Length > 0)
{
//盛放查询结果的容器
TopScoreDocCollector collector = TopScoreDocCollector.Create(1000, true);
//使用query这个查询条件进行搜索，搜索结果放入collector
search.Search(bQuery, null, collector);
recCount = collector.TotalHits;
//从查询结果中取出第m条到第n条的数据
ScoreDoc[] docs = collector.TopDocs((currentPageNo - 1) * pageNum, pageNum).ScoreDocs;
//遍历查询结果
for (int i = 0; i < docs.Length; i++)
{
//只有 Field.Store.YES的字段才能用Get查出来
Document doc = search.Doc(docs[i].Doc);
list.Add(new Article()
{
Id = doc.Get("id"),
Title = LuceneHelper.CreateHightLight(txtSearch, doc.Get("title")), //高亮显示
Content = LuceneHelper.CreateHightLight(txtSearch, doc.Get("Content")) //高亮显示
});
}
}
//分页
PagedList <Article> plist = new PagedList <Article>(list, currentPageNo, pageNum, recCount);
plist.TotalItemCount = recCount;
plist.CurrentPageIndex = currentPageNo;
return(View("Index", plist));
}
