Record record = new Record();

record.set("sdate", sdate);

record.set("edate", edate);

if(IStr.isNotBlank(eqp_id)){

record.set("eqp_id", "%"+eqp_id+"%");

}

if(IStr.isNotBlank(work_id)){

record.set("work_id", "%"+work_id+"%");

}

if(IStr.isNotBlank(order_id)){

record.set("order_id", "%"+order_id+"%");

}

if(IStr.isNotBlank(task_id)){

record.set("task_id", "%"+task_id+"%");

}

String table_name = "ht_lot_info";

record.set("TABLE_NAME", table_name);

List<Record> htList = RtLotInfoService.me.listByTableName(db_name ,record);

for(Record ht :htList){

  RtLotInfo rLotInfo=(RtLotInfo)ht;//出现不能强转的问题

}