public class testIndexer {
    private IndexWriter writer;
    public testIndexer(String indexDir) throws CorruptIndexException, LockObtainFailedException, IOException
    {
        Directory dir = FSDirectory.open(new File(indexDir));
        writer = new IndexWriter(dir,new IKAnalyzer(),true,IndexWriter.MaxFieldLength.UNLIMITED);
    }
    public void close() throws CorruptIndexException, IOException
    {
        writer.close();
    }
    public void indexPDFile(String filename) throws Exception
    {
        File file = new File(filename);
        String content = PdfExtractor.getText(file);
        Document doc = new Document();
        doc.add(new Field("content",content,Field.Store.YES,Field.Index.ANALYZED));
        writer.addDocument(doc);
    }
    
    public static void main(String args[])
    {
        String path="k:/aaaa";
        String pdfile="k:/kaks.pdf";
        try {
            testIndexer indx = new testIndexer(path);
            indx.indexPDFile(pdfile); 
        }catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
    }

}

public class testSearch {
    public static void main(String args[]) throws IOException, ParseException
    {
        String indexDir = "K:/aaaa";
        String q = "分子";
        search(indexDir,q);
    }
    public static void search(String indexDir,String q) throws IOException,ParseException
    {
        Directory dir = FSDirectory.open(new File(indexDir));
        IndexSearcher is = new IndexSearcher(dir,true);
        QueryParser parser = new QueryParser(Version.LUCENE_35,"content",new IKAnalyzer());
        Query query = parser.parse(q);
        
        TopDocs hits = is.search(query, 10);
        for(ScoreDoc scoreDoc:hits.scoreDocs)
        {
            Document doc = is.doc(scoreDoc.doc);
            System.out.println(doc.get("content"));
        }
        is.close();
    }

}