Lucene 3.0 初步2(搜索)

package cn.com.alei.lucene;

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.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.SimpleFSDirectory;
import org.apache.lucene.util.Version;

/**
 * @author alei
 * @version 创建时间：2012-4-14 下午05:49:46
 */
public class Search {
	
	public static void main(String[] args) throws IOException, ParseException {
		
		//上次创建索引目录
		File indexpath = new File("D:\\framework\\luceneIndex");
		
		Directory directory = new SimpleFSDirectory(indexpath);
		
		//创建一个IndexSearcher 实例
		IndexSearcher indexSearcher = new IndexSearcher(directory);
		
		//创建QueryParser对象，第一个参数表示Lucene版本，第二个参数表示搜索Field的字段，第三个表示搜索分词器
		QueryParser queryparser = new QueryParser(Version.LUCENE_30,"content",new StandardAnalyzer(Version.LUCENE_30));
		
		//生成一个Query
		Query query = queryparser.parse("美国");
		
		TopDocs docs = indexSearcher.search(query, 10);
		
		System.out.println("共搜索到 ：" + docs.totalHits + " 个");
		
		int size = docs.totalHits;
		
		if(size > 0){
			for(int i = 0 ; i < size ; i++){
				ScoreDoc sdoc = docs.scoreDocs[i];
				Document d = indexSearcher.doc(sdoc.doc);
				System.out.println(d.get("path"));
			}
		}
	}
	

}