lucene创建索引简单示例

利用空闲时间写了一个使用lucene创建索引简单示例，

1.使用maven创建的项目

2.需要用到的jar如下：

废话不多说，直接贴代码如下：

1.创建索引的类(HelloLucene):

package test.lucene;

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

import org.apache.lucene.document.Document;

import org.apache.lucene.document.Field;

import org.apache.lucene.document.StringField;

import org.apache.lucene.document.TextField;

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 java.io.File;

import java.io.FileReader;

/**

* 创建索引类

* Created with IntelliJ IDEA.

* User: jackzhao

* Date: 14-3-13

* Time: 下午2:57

* To change this template use File | Settings | File Templates.

*/

public class HelloLucene {

/**

* 创建索引

*/

public void createIndex(){

try

{

//1.创建Directory

//在磁盘上创建索引

Directory dir= FSDirectory.open(new File("d:/lucene/TestIndex"));

//2.创建IndexWriter

IndexWriterConfig iwc=new IndexWriterConfig(Version.LUCENE_47,new StandardAnalyzer(Version.LUCENE_47));

IndexWriter writer=new IndexWriter(dir,iwc);

//3.创建Document

Document document=null;

File f=new File("d:/lucene/TestData");

for(File file:f.listFiles())

{

document=new Document();

//4.为Document添加Field对象

document.add(new StringField("filename",f.getName(), Field.Store.YES));

document.add(new StringField("path",f.getAbsolutePath(), Field.Store.YES));

document.add(new TextField("context",new FileReader(file)));

}

//5.关闭IndexWriter

writer.close();

}

catch (Exception ex)

{

ex.printStackTrace();

}

}

}

2.单元测试类(LuceneTest):

import org.junit.Test;

import test.lucene.HelloLucene;

/**

* 单元测试类

* Created with IntelliJ IDEA.

* User: jackzhao

* Date: 14-3-13

* Time: 下午3:15

* To change this template use File | Settings | File Templates.

*/

public class LuceneTest {

@Test

public void testLucene(){

HelloLucene hl=new HelloLucene();

hl.createIndex();

}

}

创建的索引如下图：