lucene5.5创建索引

来源：互联网发布：移动收银软件编辑：程序博客网时间：2024/04/19 03:38
public class FileIndexUtil {    private static Directory directory = null;    static {        try {            directory = FSDirectory.open(Paths.get("F://ysm//index"));//索引是写入硬盘还是内存中，5.5中用的是FSDirectory.open方法        } catch (IOException e) {            e.printStackTrace();        }    }    public static Directory getDirectory(){        return directory;    }    public static void index(boolean hasNew){        IndexWriter writer = null;        try {            IndexWriterConfig iwc = new IndexWriterConfig(new StandardAnalyzer());            writer = new IndexWriter(directory, iwc);            if(hasNew)                writer.deleteAll();            File file = new File("F://ysm//Lucene//test2");//建立索引的文件            Document doc = null;//索引以文档的形式保存，每个文档里面可以添加若干个field            for(File f : file.listFiles()){                doc = new Document();                doc.add(new Field("content", new FileReader(f)));                doc.add(new Field("name", f.getName(), Field.Store.YES, Field.Index.NOT_ANALYZED));                doc.add(new Field("path", f.getAbsolutePath(), Field.Store.YES, Field.Index.NOT_ANALYZED ));                doc.add(new LongField("date", f.lastModified() ,Field.Store.YES));                doc.add(new IntField("size", (int) (f.length()), Field.Store.YES ));                writer.addDocument(doc);//文档写入            }        } catch (IOException e) {            e.printStackTrace();        } finally {            try {                if(writer!=null) writer.close();//不要忘记了writer.close()方法，要不然索引不会建成功            } catch (IOException e) {                e.printStackTrace();            }        }    }}
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