Java遍历JSON

Java遍历JSON

用Iterator迭代器遍历取值 :

    public static void main(String[] args) {        String s = "{'A':{'a':'1' ,'aa':'11'},'B':{'b':'2' ,'bb':'22'}}" ;        JSONObject jsonObject1=JSONObject.fromObject(s);        Iterator<String> iterator1 =jsonObject1.keys();        while(iterator1.hasNext()){            String key1 = iterator1.next();            String value1 = jsonObject1.getString(key1);            System.out.println(key1);            JSONObject jsonObject2=JSONObject.fromObject(value1);            Iterator<String> iterator2 =jsonObject2.keys();            while(iterator2.hasNext()){                String key2 = iterator2.next();                String value2 = jsonObject2.getString(key2);                System.out.println(" - "+key2);                System.out.println(" -- "+value2);            }        }    }