Map键值对的简单实例

  • 首先对map进行封装
public Map<String, String> getMapKjkm(KjkmQuery query) {
        // TODO Auto-generated method stub
        List<KjkmPO> KjkmList=kjkmdao.queryBaseByCondtion(query);
        Map<String, String> mapkjkm=new HashMap<>();
        for(KjkmPO po:KjkmList){
            mapkjkm.put(po.getCode(), po.getAlias());
        }
        return mapkjkm;
    }

这里写图片描述

  • 上面就将所需要的数据封装到map中了,接下来就是调用该方法
Map<String, String> mapkjkm=kjkmService.getMapKjkm(kjkmquery);
List<MonthlyReportPO> list = reportDao.queryReportByQuery(query);
        for (MonthlyReportPO po : list) {
            po.setKjkm_txt(mapkjkm.get(po.getKjkm()));
        }
return list

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转载自blog.csdn.net/megamind_hl/article/details/80104551