实习任务二

@Override

public List<RptDayProductVo> queryInfoList(RptDayProductParam param){
    int page = param.getPage();
    param.setStart((page - 1) * param.getLimit());

    //获取产品id
    List<RptDayProductVo> vos =rptDayProductDao.queryInfoList(param);

    List<String>proIds =new ArrayList<>();
    for (RptDayProductVo v: vos){
        String proProductId=v.getFkPrdProductId();
        proIds.add(proProductId);

    }
  List<PrdProductBean>prdprodects=productDao.listProductByIds(proIds);
  Map<String,String>prdMap=new HashMap<>();
  for(PrdProductBean prd:prdprodects){
      prdMap.put(prd.getId(),prd.getName());
  }

    for(RptDayProductVo v: vos) {
        String proProductId = v.getFkPrdProductId();
        v.setFkPrdProductId(prdMap.get(proProductId));
    }
    return rptDayProductDao.queryInfoList(param);
}

来源：https://blog.csdn.net/qq_37119462/article/details/99309462