lucene模糊查询

    public List<Document> prefixQuery(Term term) {
         List<Document> docList = new ArrayList<Document>();
        try {
            directory = FSDirectory.open(new File(LuceneConstant.INDEX_PATH));//打开索引文件夹  
            IndexReader reader = DirectoryReader.open(directory);//读取目录  
            IndexSearcher search = new IndexSearcher(reader);//初始化查询组件  

            Query query=new PrefixQuery(term);//查询  
            TopDocs td = search.search(query, 10000);//获取匹配上元素的一个docid  

            for (ScoreDoc doc : td.scoreDocs) {
                docList.add(search.doc(doc.doc));
            }
            reader.close();//关闭资源  
            directory.close();//关闭连接  
        } catch (Exception e) {
            e.printStackTrace();
        }
        return docList;
    }