json 转换为 map

 将json字符串转换为map

Map<String, String> codesMap = new HashMap<>();

JSONObject jsonObject = new JSONObject(jsonStr);

//获得迭代器
Iterator<String> keyIter = jsonObject.keys();

String key;
String value;

while(keyIter.hasNext()){
   key = keyIter.next();
   value = jsonObject.getString(key);
   codesMap.put(key, value);
}