postman传复杂对象（对象内 包含对象与对象列表）

对象代码

 class SattionAlarmAndAlarmChannelDTO {
    SattionAlarmEntity sattionAlarmEntity;
    List tAlarmChannelList;


  @Override
    public String toString() {
        return "SattionAlarmAndAlarmChannelDTO{" +
                "sattionAlarmEntity=" + sattionAlarmEntity +
                ", tAlarmChannelList=" + tAlarmChannelList +
                '}';
    }

后台接收

有试过  SattionAlarmAndAlarmChannelDTO 对象接收，但是 只 收到了  SattionAlarmEntity  对象的数据，List 为null

R SaveToStationMonitor(@RequestBody String entity1){
        SattionAlarmAndAlarmChannelDTO entity=   JSONObject.parseObject(entity1, SattionAlarmAndAlarmChannelDTO.class);

postman传参