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<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-queryparser</artifactId>
<version>6.3.0</version>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-analyzers-common</artifactId>
<version>6.3.0</version>
</dependency>

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package test;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.store.RAMDirectory;
public class LuceneTest {
private static RAMDirectory directory = new RAMDirectory();
public static void createIndex(String data) throws Exception {
System.out.println("Create Index for :" + data);
IndexWriter indexWriter = new IndexWriter(directory, new IndexWriterConfig());
Document document = new Document();
document.add(new TextField("content", data, Store.YES));
indexWriter.addDocument(document);
indexWriter.commit();
indexWriter.close();
}
public static void searchIndex(String text) throws Exception {
long time = System.currentTimeMillis();
DirectoryReader ireader = DirectoryReader.open(directory);
IndexSearcher isearcher = new IndexSearcher(ireader);
QueryParser parser = new QueryParser("content", new StandardAnalyzer());
Query query = parser.parse(text);
ScoreDoc[] hits = isearcher.search(query, 1000).scoreDocs;
for (ScoreDoc hit : hits) {
Document hitDoc = isearcher.doc(hit.doc);
System.out.println("Found: " + hitDoc.get("content"));
System.out.println(hit);
}
ireader.close();
directory.close();
System.out.println("Search----：" + (System.currentTimeMillis() - time) + "ms\n");
}
public static void main(String[] args) throws Exception {
createIndex("hello man");
createIndex("two man come, man, man");
searchIndex("man");
}
}

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LuceneTest

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