IndexWriterConfig indexWriterConfig =newIndexWriterConfig(

           Version.LUCENE_36, analyzer);

IndexWriter indexWriter =new IndexWriter(directory,indexWriterConfig);

//将document数据写入索引库

indexWriter.addDocument(document);

//关闭索引

indexWriter.close();

案例目录：

Article.java

package cn.toto.lucene.quickstart;

publicclass Article {

  privateintid;

  private Stringtitle;

  private Stringcontent;

  /**

   * @return the id

   */

  publicint getId() {

     returnid;

  }

  /**

   * @param id the id to set

   */

  publicvoid setId(int id) {

     this.id = id;

  }

  /**

   * @return the title

   */

  public String getTitle() {

     returntitle;

  }

  /**

   * @param title the title to set

   */

  publicvoid setTitle(String title) {

     this.title = title;

  }

  /**

   * @return the content

   */

  public String getContent() {

     returncontent;

  }

  /**

   * @param content the content to set

   */

  publicvoid setContent(String content) {

     this.content = content;

  }

}

package cn.toto.lucene.quickstart;

import java.io.File;

import org.apache.lucene.analysis.Analyzer;

import org.apache.lucene.analysis.standard.StandardAnalyzer;

import org.apache.lucene.document.Document;

import org.apache.lucene.document.Field;

import org.apache.lucene.document.Field.Index;

import org.apache.lucene.document.Field.Store;

import org.apache.lucene.index.IndexWriter;

import org.apache.lucene.index.IndexWriterConfig;

import org.apache.lucene.store.Directory;

import org.apache.lucene.store.FSDirectory;

import org.apache.lucene.util.Version;

import org.junit.Test;

/**

 *@brief LuceneTest.java测试Lucene的案例

 *@attention

 *@authortoto-pc

 *@date 2014-12-7

 *@note begin modify by涂作权 2014/12/07 null

 */

publicclass LuceneTest {

  @Test

  publicvoid buildIndex()throws Exception {

     Article article = new Article();

     article.setId(100);

     article.setTitle("Lucene快速入门");

     article.setContent("Lucene是提供了一个简单却强大的应用程式接口，"

           + "能够做全文检索索引和搜寻，在Java开发环境里Lucene是" +

           "一个成熟的免费的开放源代码工具。");

     //将索引数据转换成为Document对象（Lucene要求）

     Document document = new Document();

     document.add(new Field("id",//字段

           article.getId() + "", Store.YES,//是否建立索引

           Index.ANALYZED//表示使用分词索引

     ));

     document.add(new Field("title", article.getTitle(), Store.YES,Index.ANALYZED));

     document.add(new Field("content",article.getContent(), Store.YES, Index.ANALYZED));

     //建立索引库

     //索引目录位置

     Directory directory = FSDirectory.open(new File("index"));//当前Index目录

     //分词器

     Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_36);

     //写入索引

     IndexWriterConfig indexWriterConfig = new IndexWriterConfig(

           Version.LUCENE_36, analyzer);

     IndexWriter indexWriter = new IndexWriter(directory, indexWriterConfig);

     //将document数据写入索引库

     indexWriter.addDocument(document);

     //关闭索引

     indexWriter.close();

  }

}

运行单元测试后的结果：

运行后index目录下的结果：

和上面的并集的query代码如下：

@Test

publicvoid searchIndex()throws Exception

{

  //建立Query对象--根据标题

  String queryString = "Lucene";

  //第一个参数，版本号

  //第二个参数，字段

  //第三个参数，分词器

  Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_36);

  QueryParser queryParser = new QueryParser(Version.LUCENE_36,"title",analyzer);

   Query query = queryParser.parse(queryString);

   //根据Query查找

   //索引目录位置

  Directory directory = FSDirectory.open(new File("index"));

   IndexSearcher indexSearcher = new IndexSearcher(IndexReader.open(directory));

  //查询满足结果的前100条数据

  TopDocs topDocs = indexSearcher.search(query, 100);

   System.out.println("满足结果记录条数：" + topDocs.totalHits);

   //获取结果

   ScoreDoc[] scoreDocs = topDocs.scoreDocs;

   for (int i = 0; i < scoreDocs.length; i++) {

     //先获得Document下标

      int docID = scoreDocs[i].doc;

      Document document = indexSearcher.doc(docID);

      System.out.println("id:" + document.get("id"));

      System.out.println("title:" + document.get("title"));

      System.out.println("content:" + document.get("content"));

  }

   indexSearcher.close();

}

运行结果：