lucene--同义词简单的实现方式

最新推荐文章于 2019-09-17 09:20:00 发布

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最新推荐文章于 2019-09-17 09:20:00 发布

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分类专栏：技术文章标签： string query nokia path search class

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本文介绍了一个使用Java实现的Lucene索引创建及搜索示例。通过创建包含重复文档的数据集，并对其进行索引建立及优化，最后利用查询解析器进行搜索并返回结果数量。该示例展示了如何使用StandardAnalyzer进行文本分析。

public class CreateIndex2 { private static final String PATH = "E:/Lucene/Index3/"; private static final String CONTENT = "NOKA"; public static void main(String[] args) throws CorruptIndexException, LockObtainFailedException, IOException, ParseException { CreateIndex2 index = new CreateIndex2(); index.createIndex(); index.search(); } private void createIndex() throws CorruptIndexException, LockObtainFailedException, IOException{ IndexWriter writer = new IndexWriter(PATH,getAnalyzer(), true); int i = 0; while (i++ < 10) { Document doc = new Document(); Document doc2 = new Document(); doc.add(new Field("content", "上海", Field.Store.YES, Field.Index.TOKENIZED)); doc.add(new Field("content", "泸", Field.Store.YES, Field.Index.TOKENIZED)); doc2.add(new Field("content", "诺基亚", Field.Store.YES, Field.Index.TOKENIZED)); doc2.add(new Field("content", "NOKIA", Field.Store.YES, Field.Index.TOKENIZED)); writer.addDocument(doc); writer.addDocument(doc2); } writer.optimize(); writer.close(); } private void search() throws CorruptIndexException, IOException, ParseException{ IndexSearcher searcher = new IndexSearcher(PATH); QueryParser parser = new QueryParser("content",getAnalyzer()); Query query = parser.parse(CONTENT); Hits hits = searcher.search(query); System.out.println(hits.length()); searcher.close(); } private Analyzer getAnalyzer(){ return new StandardAnalyzer(); } }