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：
