Map<Integer, List<Integer>> map = new LinkedHashMap<>();
map.put(1,ddzCard.getOneSendCardList());
String json = JSONObject.toJSONString(map);
System.out.println("json:"+json);
Map<Integer, List<Integer>> map = new LinkedHashMap<>();
map.put(1,ddzCard.getOneSendCardList());
String json = JSONObject.toJSONString(map);
System.out.println("json:"+json);