lucene3.5检索实例

最新推荐文章于 2025-08-06 18:22:29 发布

wanglihuhappy

最新推荐文章于 2025-08-06 18:22:29 发布

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分类专栏： lucene 文章标签： lucene IndexReader IndexSearcher TopDocs ScoreDoc

本文链接：https://blog.youkuaiyun.com/wanglihuhappy/article/details/84124215

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本文详细介绍了如何使用Lucene库实现全文检索功能，包括创建索引、解析查询语法、执行搜索并输出结果。

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public class MySearcher {
	public static final String STORE_PATH = "E:/lucene_index";

	public static void searcher(String keyword) throws ParseException,IOException {
		long startTime = System.currentTimeMillis();
		Directory dir = FSDirectory.open(new File(STORE_PATH));
		IndexReader reader = IndexReader.open(dir);
		IndexSearcher search = new IndexSearcher(reader);

		Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_35);
		QueryParser parse = new QueryParser(Version.LUCENE_35, "content", analyzer);
		Query query = parse.parse(keyword);
		System.out.println("解析后的语法："+query.toString());
		TopDocs it = search.search(query, 100);
		System.out.println("search : " + query.toString());
		ScoreDoc[] docs = it.scoreDocs;
		for (int i = 0; i < docs.length; i++) {
			System.out.println(i + "\t" + search.doc(docs[i].doc).get("title")+"\t"+docs.toString());
		}
		long endTime = System.currentTimeMillis();
		System.out.println("total time: " + (endTime - startTime) + " ms");
	}
	public static void main(String[] args) throws IOException, ParseException {
		searcher("lucene");
	}

}