more thand one record for query:Query{
   "pageSize" :25,
   "orderBys" :"",
   "queryItems" :[{
      "field" :"hidden",
      "op" :" = ",
      "value" :"0"
   }],
   "id" :0,
   "items" :{
   },
   "pageNo" :1,
   "resourceName" :"SerialGroup"
}！Please use queryForList！