Lucene.net 基本示例 《第一篇》

　　Lucene.net是java平台搜索插件Lucene的移植版。它的主要用于开发搜索引擎，站内搜索等。

　　开篇之前，写个最简单的DEMO，让自己先体验下Lucene.net的魅力，顺便搭建环境。

        static void Main(string[] args)

        {

            //写入数据到索引

            Analyzer analyzer = new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30);

            Directory directory = new RAMDirectory();

            IndexWriter.MaxFieldLength maxFieldLength = new IndexWriter.MaxFieldLength(10000);



            using (IndexWriter writer = new IndexWriter(directory, analyzer, maxFieldLength))

            {

                Document document1 = new Document();

                document1.Add(new Field("Sentence", "刘备", Field.Store.YES, Field.Index.ANALYZED));

                writer.AddDocument(document1);



                Document document2 = new Document();

                document2.Add(new Field("Sentence", "张飞", Field.Store.YES, Field.Index.ANALYZED));

                writer.AddDocument(document2);



                Document document3 = new Document();

                document3.Add(new Field("Sentence", "关羽", Field.Store.YES, Field.Index.ANALYZED));

                writer.AddDocument(document3);



                writer.Optimize();

            }



            //查找

            using (IndexSearcher searcher = new IndexSearcher(directory))

            {

                Term t = new Term("Sentence", "飞");

                Query query = new TermQuery(t);

                TopDocs docs = searcher.Search(query, null, 1000);

                Console.WriteLine(docs.TotalHits);

                Console.WriteLine(docs.ScoreDocs[0].Doc);

                Document doc = searcher.Doc(docs.ScoreDocs[0].Doc);

                Console.WriteLine(doc.Get("Sentence"));

            }

            Console.ReadKey();

        }

　　以上示例输出如下：