JSONObject jsonObject1 = JSONObject.parseObject(mqttMessage);
MessageVo messageVo = JSONObject.toJavaObject(jsonObject1, MessageVo.class);
把redis拿到的值拼成一个对象
Object roomMessageMap = redisUtil.get(roomMessageId);
ObjectMapper objectMapper = new ObjectMapper();
RoomMessage roomMessage = objectMapper.convertValue(roomMessageMap, RoomMessage.class);
标签：MessageVo,JSONObject,userId,拿到,12323,RoomMessage,ObjectMapper From： https://www.cnblogs.com/wyx-5555/p/16960384.html