Lucnen.net OR查询问题。

悬赏园豆：30 [已关闭问题] 关闭于 2015-09-11 11:36

用Lucnen 3.03
盘古分词：2.4.1.0

代码贴上：

public List<KeyWord> Search(string keyword, int count)
        {
            QueryParser parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_30, "Word", new Lucene.Net.Analysis.PanGu.PanGuAnalyzer());
            parser.DefaultOperator = Lucene.Net.QueryParsers.QueryParser.Operator.OR;
            Query query = parser.Parse(keyword);
            IndexSearcher searcher = new IndexSearcher(direcotry, true);
            TopDocs docs = searcher.Search(query, (Filter)null, count);
            if (docs == null || docs.TotalHits == 0)
            {
                return new List<KeyWord>();
            }
            else
            {
                List<KeyWord> list = new List<KeyWord>();
                foreach (ScoreDoc sd in docs.ScoreDocs)
                {
                    try
                    {
                        KeyWord kw = new KeyWord();
                        Document doc = searcher.Doc(sd.Doc);
                        string id = doc.Get("ID");
                        string word = doc.Get("Word");
                        string textID = doc.Get("TextID");
                        kw.Word = word;
                        kw.ID = Convert.ToInt32(id);
                        kw.TextID = Convert.ToInt32(textID);
                        list.Add(kw);
                    }
                    catch (Exception)
                    {
                        return null;
                    }
                }
                return list;
            }
        }