/**
     *
     * @param keyword 源词汇
     * @param smart 是否智能分词
     * @return 分词词组(,拼接)
     */
    public static String getKeywords(String keyword, boolean smart) {
        StringReader reader = new StringReader(keyword);
        IKSegmenter iks = new IKSegmenter(reader, smart);
        StringBuilder buffer = new StringBuilder();
        try {
            Lexeme lexeme;
            while ((lexeme = iks.next()) != null) {
                buffer.append(lexeme.getLexemeText()).append(',');
            }
        } catch (IOException e) {
        }
        //去除最后一个,
        if (buffer.length() > 0) {
            buffer.setLength(buffer.length() - 1);
        }
        return buffer.toString();
    }