默认使用Json转化数据,凡以[或{开始的,均载入json
    :param v:
    :return:

def convert_value(v):
    """
    默认使用Json转化数据,凡以[或{开始的,均载入json
    :param v:
    :return:
    """
    if v and isinstance(v, six.string_types):
        v = v.strip()
        if (v.startswith('{') and v.endswith('}')) or (v.startswith('[') and v.endswith(']')):
            try:
                return json.loads(v)
            except Exception as e:
                logger.error(e)

    return v