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: