- /// <summary>
- /// 搜索数据
- /// </summary>
- /// <returns></returns>
- privateList SearchBookContent()
- {
- stringindexPath =@"C:\lucenedir";
- List<string> kw =Common.webCommon.GetPanGuWord(Request["txtContent"]);
- FSDirectory directory = FSDirectory.Open(newDirectoryInfo(indexPath),new NoLockFactory());
- IndexReader reader = IndexReader.Open(directory,true);
- IndexSearcher searcher =new IndexSearcher(reader);
- //搜索条件PhraseQuery query =new PhraseQuery();
- foreach(stringwordinkw)//先用空格,让用户去分词,空格分隔的就是词"计算机 专业"
- {
- query.Add(newTerm("Content", word));
- }
- //query.Add(new Term("body","语言"));--可以添加查询条件,两者是add关系.顺序没有关系.
- //query.Add(new Term("body", "大学生"));
- //query.Add(new Term("body", kw));//body中含有kw的文章query.SetSlop(100);//多个查询条件的词之间的最大距离.在文章中相隔太远 也就无意义.(例如 "大学生"这个查询条件和"简历"这个查询条件之间如果间隔的词太多也就没有意义了。)
- //TopScoreDocCollector是盛放查询结果的容器TopScoreDocCollector collector = TopScoreDocCollector.create(1000,true);
- searcher.Search(query, null, collector);//根据query查询条件进行查询,查询结果放入collector容器ScoreDoc[] docs = collector.TopDocs(0, collector.GetTotalHits()).scoreDocs;//得到所有查询结果中的文档,GetTotalHits():表示总条数 TopDocs(300, 20);//表示得到300(从300开始),到320(结束)的文档内容.
- //可以用来实现分页功能
- List list = newList();
- for(inti =0; i < docs.Length; i++)
- {
- ViewSarchContentModel viewModel =new ViewSarchContentModel();
- //
- //搜索ScoreDoc[]只能获得文档的id,这样不会把查询结果的Document一次性加载到内存中。降低了内存压力,需要获得文档的详细内容的时候通过searcher.Doc来根据文档id来获得文档的详细内容对象Document.
- intdocId = docs[i].doc;//得到查询结果文档的id(Lucene内部分配的id)Document doc = searcher.Doc(docId);//找到文档id对应的文档详细信息viewModel.Id = doc.Get("Id");
- viewModel.Title = doc.Get("Title");
- viewModel.Content =Common.WebCommon.CreateHightLight(Request["txtContent"], doc.Get("Content"));//搜索内容关键字高亮显示
- list.Add(viewModel);
- }
- SearchDetails searchDetail =new SearchDetails();
- searchDetail.Id = Guid.NewGuid();
- searchDetail.KeyWords = Request["txtContent"];
- searchDetail.SearchDateTime = DateTime.Now;
- SearchDetailsService.AddEntity(searchDetail);
- return list;
- }
来源: http://www.bubuko.com/infodetail-1869044.html