我的第一 lucene 实例

package org.itat.test;


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


import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.CorruptIndexException;
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.store.LockObtainFailedException;
import org.apache.lucene.util.Version;


public class HelloLucene {



/**
* 目的：建立索引
* 
* 流程：
*  1. 创建Directory   索引的目标
*  2. 创建IndexWriter    写索引
* 3. 创建Document对象
* 索引的资源 可能是 一篇　文档 或者是 数据库中的 一张表。
* 　　　　　文档的　属性：　　　路径　名称　　Size  等等
*  4. 为 Document 添加 Field (域)
*  5. 通过IdexWriter  添加文档到索引中
*  
* @author love
* @version  V1.0
* @throws IOException 
* @throws CorruptIndexException 
* 
* */

public void index() throws CorruptIndexException, IOException
{



IndexWriter writer = null;
try {
//1. 创建Directory   索引的目标//内存文件  
// Directory dir = new RAMDirectory();  //建立在内存中的！
// Directory dir = FSDirectory.open(new File("D:/study/Code/Lucene/index"));//创建在硬盘上！

Directory dir = FSDirectory.open(new File("D:\\study\\Code\\Lucene\\index1"));//创建在硬盘上！
//2. 创建IndexWriter    写索引
IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_36, new StandardAnalyzer(Version.LUCENE_36));

writer = new IndexWriter(dir, iwc);
//3. 创建Document对象
Document doc = null;
//4. 为 Document 添加 Field (域)
File f = new File("D:\\study\\Code\\Lucene\\Test");

for(File file: f.listFiles())
{
doc = new Document();
 
//建立索引文档的内容
doc.add(new Field("content",new FileReader(file)));
doc.add(new Field("filename",file.getName(),Field.Store.YES,Field.Index.NOT_ANALYZED ));
doc.add(new Field("path",file.getAbsolutePath(),Field.Store.YES,Field.Index.NOT_ANALYZED));
 
//5. 通过IdexWriter  添加文档到索引中2
writer.addDocument(doc);
 
}


} catch (CorruptIndexException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (LockObtainFailedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace(); 
} finally{

if(writer!=null) writer.close();
}


}

}

****************************************************************************************

//测试类：

package org.itat.test;




import org.junit.Test;


import java.io.IOException;


import org.apache.lucene.index.CorruptIndexException;




public class TestLucene {


@Test
public void testIndex() throws CorruptIndexException, IOException
{
HelloLucene h1 = new HelloLucene();
h1.index();
}


}