lucene的索引查询

package com.hope.lucene;

import org.apache.lucene.document.Document;
import org.apache.lucene.document.LongPoint;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
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.search.TopDocs;
import org.apache.lucene.store.FSDirectory;
import org.junit.Before;
import org.junit.Test;
import org.wltea.analyzer.lucene.IKAnalyzer;

import java.io.File;

/**
 * @author newcityman
 * @date 2020/1/15 - 18:14
 */
public class SearchIndex {
 private IndexReader indexReader;
 private IndexSearcher indexSearcher;

 @Before
 public void init() throws Exception{
 indexReader = DirectoryReader.open(FSDirectory.open(new File("G:\\workspace_idea3\\lucene\\temp\\index").toPath()));
 indexSearcher = new IndexSearcher(indexReader);
 }

 /**
 * 范围查询
 * @throws Exception
 */
 @Test
 public void testRangeQuery() throws Exception{
 //创建一个Query对象
 Query query = LongPoint.newRangeQuery("size", 0L, 50L);
 printResult(query);
 }

 public void printResult(Query query) throws Exception{

 TopDocs topDocs = indexSearcher.search(query, 10);
 System.out.println("总记录数："+topDocs.totalHits);

 ScoreDoc[] scoreDocs = topDocs.scoreDocs;
 for(ScoreDoc scoreDoc : scoreDocs) {
 //取文档id
 int docId = scoreDoc.doc;
 //根据id取文档对象
 Document document = indexSearcher.doc(docId);
 System.out.println(document.get("name"));
 System.out.println(document.get("path"));
 System.out.println(document.get("size"));
 // System.out.println(document.get("content"));
 System.out.println("++++++++++++++++++++++++++++++");
 }
 indexReader.close();
 }

 /**
 * 使用QueryParser查询
 * @throws Exception
 */

 @Test
 public void testQueryParser() throws Exception{
 //创建一个QueryParser对象，两个参数
 //参数一：默认搜索域， 参数2：分析器对象
 QueryParser queryParser = new QueryParser("name",new IKAnalyzer());
 //使用QueryParser对象创建一个Query对象
 Query query = queryParser.parse("全文");
 // 执行查询
 printResult(query);
 }
}