Lucene2

private void getLucene()
    {
        File filePath = new File("E:\\xbliucss");
        File indexPath = new File("E:\\xbliucss");
        //创建一个标准解析器
        StandardAnalyzer sAnalyzer = new StandardAnalyzer();
        //给文档加索引
        IndexWriter indexWriter = new IndexWriter(filePath, sAnalyzer, true);
        File[] fileList = filePath.listFiles();
        Long startTime = new Date().getTime();
        //增加Document到索引中
        for (int i = 0; i < fileList.length; i++)
        {
            if (fileList[i].isFile() && fileList[i].getName().endsWith(".txt"))
            {
                System.out.println("File: " + fileList[i].getCanonicalPath()
                        + "正在被索引");
                String temp = fileReaderAll(fileList[i].getCanonicalPath(),
                        "GBK");
                System.out.println(temp);
               
                Document document = new Document();
               
                //保存文件路径
                Field filedPath = new Field("path", fileList[i].getPath(),
                        Field.Store.YES, Field.Index.NO);
               
                //保存文件内容
                Field filedBody = new Field("body", temp, Field.Store.YES,
                        Field.Index.TOKENIZED,
                        Field.TermVector.WITH_POSITIONS_OFFSETS);
               
                document.add(filedPath);
                document.add(filedBody);
                indexWriter.addDocument(document);
            }
        }
        indexWriter.optimize();//对索引进行优化
        indexWriter.close();
        long endTime = new Date().getTime();
        System.out.println("这花费了：" + (endTime - startTime) + "毫秒把文档增加到索引里面去"
                + indexPath.getPath());
    }
    private String fileReaderAll(String fileName, String charset)
    {
        FileInputStream fis = new FileInputStream(fileName);
        InputStreamReader is = new InputStreamReader(fis, charset);
        BufferedReader reader = new BufferedReader(is);
        String line = "";
        String temp = "";
        while ((line = reader.readLine()) != null)
        {
            temp += line;
        }
        reader.close();
        return temp;
    }
    public void queryFile()
    {
        Hits hits = null;
        String queryStr = "中华";
        Query query = null;
        IndexSearcher iSearcher = new IndexSearcher("E:\\xbliucss"); //检索工具，索引存放的目录
        Analyzer analyzer = new StandardAnalyzer();//标准解析器
        QueryParser qParse = new QueryParser("body", analyzer); //查询器，返回一个Query对象
        query = qParse.parse(queryStr);
        if (iSearcher != null)
        {
            hits = iSearcher.search(query);
        }
        Iterator<?> iterator = hits.iterator();
        while (iterator.hasNext())
        {
            //一条记录对应一个Hit对象
            Object next = iterator.next();
            if (next instanceof Hit)
            {
                Hit hit = (Hit)next;
                Document document = hit.getDocument();
                Field field = document.getField("path");//path:对应索引时的标识
                String filePath = field.stringValue();//获取文件路径
                System.out.println("文件路径：" + filePath);
               
                Field field2 = document.getField("body");//body:对应索引时的标识
                String fileBody = field2.stringValue();//获取文件内容
                System.out.println("文件内容：" + fileBody);
            }
        }
        System.out.println("共找到" + hits.length() + "个结果。");
    }