lucene 第一个例子

 

 

 闲暇时间稍微对lucene作了了解，写了一小例子。简单，也没啥好讲解的。

 

package com.lucune.test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;

import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.store.FSDirectory;


public class IndexFiles {

	public static void main(String[] args) throws Exception{
		
		String[] s = new String[10];
		
		String indexPath = "E:\\index";	//索引存放目录
		IndexWriter writer;
		writer = new IndexWriter(FSDirectory.getDirectory(new File(indexPath),true),
				new StandardAnalyzer(),true);
		
		String path = "E:\\bbs.sql";
		FileReader fr = new FileReader(path);
		Document doc = new Document();
		doc.add(new Field("body", fr));
		doc.add(new Field("path", path , Field.Store.YES, Field.Index.TOKENIZED));
		
		
		String path2 = "E:\\plan.txt";
		FileReader fr2 = new FileReader(path2);
		Document doc2 = new Document();
		doc2.add(new Field("body", fr2));
		doc2.add(new Field("path", path2 , Field.Store.YES, Field.Index.TOKENIZED));
		
		
		String path3 = "E:\\sql.sql";
		FileReader fr3 = new FileReader(path3);
		Document doc3 = new Document();
		doc3.add(new Field("body", fr3));
		doc3.add(new Field("path", path3 , Field.Store.YES, Field.Index.TOKENIZED));
		
		
		writer.addDocument(doc);
		writer.addDocument(doc2);
		writer.addDocument(doc3);
		writer.close();
		fr3.close();
		fr2.close();
		fr.close();
		
		
		IndexSearcher search = new IndexSearcher(FSDirectory.open(new File(indexPath)));
		QueryParser parser = new QueryParser("body",new StandardAnalyzer());
		
		Query query = parser.parse("jquery");
		Hits hits = search.search(query);
		for(int i=0;i<hits.length();i++){
			Document cc = hits.doc(i);
			System.out.println(cc.get("path"));
			System.out.println(hits.score(i));
			FileReader fe = new FileReader(cc.get("path"));
			BufferedReader bf = new BufferedReader(fe);
			String rl;
			while((rl=bf.readLine())!=null){
				System.out.println(rl);
			}
			System.out.println();
			bf.close();
			fe.close();
			
		}
		//System.out.println(hits.length());
		search.close();
		
		
	}
}