Lucene-02:搜索初步

承接上一篇文章。

package com.amazing;

import java.io.File;
import java.io.IOException;

import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;

public class HelloLucene {

    public void search(){
            IndexReader reader = null;
            IndexSearcher searcher = null;
        try {
            Directory directory = FSDirectory.open(new File("D:"+File.separator+"lucene"+File.separator+"index01"));
            reader = IndexReader.open(directory);
            searcher = new IndexSearcher(reader);

            QueryParser parser = new QueryParser(Version.LUCENE_35,"content",new StandardAnalyzer(Version.LUCENE_35));
            Query query = parser.parse("java");
            TopDocs tds = searcher.search(query, 10);
            ScoreDoc[] sds = tds.scoreDocs;
            for(ScoreDoc sd:sds){
                Document doc = searcher.doc(sd.doc);
                System.out.println(doc.get("filename")+"--->"+doc.get("path"));
            }
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        } finally{
            if(reader != null){
                try {
                    reader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if(searcher != null){
                try {
                    searcher.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

    }

}

package com.amazing;

import org.junit.Test;

public class TestLucene {

    @Test
    public void testCreateIndex(){
        HelloLucene hl = new HelloLucene();
        hl.search();
    }
}