java 解析json 遍历未知key与value

private List<String> list_color_key = new ArrayList<String>();

private List<String> list_color_value = new ArrayList<String>();

JSONObject jsonObject_AA = spec_value_obj.getJSONObject("AA");

Iterator it_color = jsonObject_AA.keys();

while (it_color.hasNext()) {

    String key = it_color.next().toString();

    list_color_key.add(key);

    String value = jsonObject_AA.getString(key);

    list_color_value.add(value);

}