学习Lucene笔记一:创建索引

public class HelloLucene {



    /**

     * 建立索引

     * @param args

     */

    public void index(){

        IndexWriter  writer = null;  



        try {

            //1.创建Directory,

            // Directory directory = new RAMDirectory();//索引是建立在内存中的

            Directory directory =  FSDirectory.open(new File("D:/Lucene/index01"));//索引是建立在硬盘上



            //2.创建IndexWriter，用完之后要关闭,在finally关闭。

            IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_36,new StandardAnalyzer(Version.LUCENE_36));

            writer = new IndexWriter(directory,iwc);

            

            //3.创建Document对象

            Document document = null;

            File files = new File("D:/Lucene/example1");

            

            //4.为Document添加Field

            for(File file: files.listFiles()){

                document =  new Document();

                

                //添加内容到索引

                document.add(new Field("content",new FileReader(file)));

                //添加文件名到索引

                document.add(new Field("filename",file.getName(),Field.Store.YES,Field.Index.NOT_ANALYZED));

                //添加路径到索引

                document.add(new Field("path",file.getAbsolutePath(),Field.Store.YES,Field.Index.NOT_ANALYZED));



                //5.通过IndexWriter添加文档到索引

                writer.addDocument(document);

            }

        } catch (CorruptIndexException e) {

            e.printStackTrace();

        } catch (LockObtainFailedException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }finally{

            try {

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

            } catch (CorruptIndexException e) {

                e.printStackTrace();

            } catch (IOException e) {

                e.printStackTrace();

            }

        }







    }

}

 源码下载