Map<String, List<Map<String,Object>>>
装载解析 Map<String, List<Map<String,Object>>>
// Map<String, List<Map<String,Object>>> //1、先装载 Map<String,Object> //2、再装载 List<Map<String,Object>> //3、最后装载 Map<String, List<Map<String,Object>>> List<Map<String,Object>> dataList1 = new ArrayList<Map<String,Object>>(); Map<String, Object> map1 = new HashMap<String, Object>(); map1.put("QUALITY_CODE","20200107"); map1.put("AUTH_NAME","证书1"); map1.put("EXPRESSIONDESC","4和3都满足"); Map<String, Object> map2 = new HashMap<String, Object>(); map2.put("QUALITY_CODE","20200107"); map2.put("AUTH_NAME","证书2"); map2.put("EXPRESSIONDESC","4证书满足"); JSONObject jsonObject1 = new JSONObject(map1); JSONObject jsonObject2 = new JSONObject(map2); dataList1.add(jsonObject1); dataList1.add(jsonObject2); //装载到 List<Map<String,Object>>中 System.out.println("dataList1:"+ dataList1); System.out.println("==========dataList1=========="); List<Map<String,Object>> dataList2 = new ArrayList<Map<String,Object>>(); Map<String, Object> map3 = new HashMap<String, Object>(); map3.put("QUALITY_CODE","20200107"); map3.put("AUTH_NAME","证书3"); map3.put("EXPRESSIONDESC","4和3都满足"); Map<String, Object> map4 = new HashMap<String, Object>(); map4.put("QUALITY_CODE","20200107"); map4.put("AUTH_NAME","证书4"); map4.put("EXPRESSIONDESC","4证书满足"); JSONObject jsonObject3 = new JSONObject(map3); JSONObject jsonObject4 = new JSONObject(map4); dataList2.add(jsonObject3); dataList2.add(jsonObject4); //装载到 List<Map<String,Object>>中 System.out.println(dataList2); System.out.println("=========dataList2==========="); // 装载到 Map<String, List<Map<String,Object>>> Map<String, List<Map<String, Object>>> stringListMap = new HashMap<>(); stringListMap.put("key1", dataList1); stringListMap.put("key2", dataList2); System.out.println(stringListMap); System.out.println("stringListMap.keySet: "+stringListMap.keySet()); System.out.println("=========keySet==========="); for (String s : stringListMap.keySet()) { List<Map<String, Object>> listMap = stringListMap.get(s); System.out.println(listMap); System.out.println("=========listMap==========="); for (Map<String, Object> map : listMap) { Set<String> stringKey = map.keySet(); System.out.println(stringKey); // [AUTH_NAME, QUALITY_CODE, EXPRESSIONDESC] System.out.println("=========stringKey==========="); for (String k : stringKey) { Object value = map.get(k); System.out.println(k+"的值:"+value+"\n"); } } }