package cn.lucene.lesson1;

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

import org.apache.lucene.document.Document;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;

public class TxtFileRead {
	/*索引目录*/
	private final static String INDEX_PATH = "d:/lucene/index1";
	/*文件目录*/
	private final static String DATA_PATH = "d:/lucene/data";
	
	public static void main(String[] args) throws Exception{
		searchTxtIndexs();
	}
	
	private static void searchTxtIndexs() throws IOException {
		File indexDir = new File(INDEX_PATH);
		//索引位置
		Directory directory = FSDirectory.open(indexDir);
		//索引读取
		IndexReader reader = DirectoryReader.open(directory);
		//索引搜索
		IndexSearcher searcher = new IndexSearcher(reader);
		//定义关键字
		Term term = new Term("content", "he");
		//关键字搜索
		TermQuery query = new TermQuery(term);
		//
		TopDocs topDocs = searcher.search(query, 10);
		
		ScoreDoc[] scoreDocs = topDocs.scoreDocs;
		System.out.println("查询结果总数---" + topDocs.totalHits + ", 最大的评分--" + topDocs.getMaxScore());  
		for (int i = 0; i < scoreDocs.length; i++) {
			int doc = scoreDocs[i].doc;
			Document document = searcher.doc(doc);
			System.out.println("contents====" + document.get("content"));  
			System.out.println("id--" + scoreDocs[i].doc + "---scors--" + scoreDocs[i].score+"---index--" + scoreDocs[i].shardIndex);  
		}
		reader.close();
	}
}