if (tableListt != null && tableListt.size() > 0) {
    for (int i = 0; i < tableListt.size(); i++) {
        Map columns = new HashMap();
        Object[] objects = (Object[]) tableListt.get(i);
        if (objects[0].equals("ID")) {
            continue;
        }
        columns.put("dataType", objects[1]);
        columns.put("name", objects[0]);
        columns.put("labelName", objects[7]);
        columns.put("data_length", objects[2]);
        if (objects[5].equals("Y")) {
            columns.put("required", false);
        } else {
            columns.put("required", true);
        }
        list.add(columns);
    }
    map.put("elements", list);
}

List里边存放Object对象获取方式