字符串转成具体的实体类

  String mag = params.get("msg");
    JSONObject jsonObject= JSONObject.fromObject(mag);
    Map classMap = new HashMap();
    classMap.put("status", StoneDevStatus.class);
    StoneStatusCallBack stoneCallBackData =( StoneStatusCallBack) JSONObject.toBean(jsonObject, StoneStatusCallBack.class, classMap);
    List<StoneDevStatus> list = stoneCallBackData.getBody().getStatus();
    System.out.println(list);
    for (StoneDevStatus stoneDevStatus : list) {
        System.out.println(stoneDevStatus.getCode());
    }
}

其中红色字体为实体类中包含了别的实体类，需要提前设置一下