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BeanUtils.copyProperties(meterRecordsHoursVO, target);List<DowloadMeterRecordsAllExport> mapList = BeanUtil.mapList(meterRecordsAllVoList, DowloadMeterRecordsAllExport.class);/** * 转换List中对象的类型. */ public static <T> List<T&

项目时原来写的逻辑分页(及在代码里对数据进行分页，但是存在一个问题，当数据量大时会导致卡死，这种情况使用物理分页(及在sql数据库中进行物理分页))拼装page (Current Size PageSize Total Records)int start = PageUtil.getStart(meterRecordsHoursDTO.getCurrentPage() - 1, meterRecordsHoursDTO.getPageSize());Integer count = meterRec

得到当前月的用电量 select IFNULL(sum(use_energy), 0) as useEnergy from meter_records_hours where DATE_FORMAT(record_date, '%Y%m') = DATE_FORMAT(CURDATE(), '%Y%m')IFNULL(sum(use_energy), 0) as useEnergy 问题在使用IFNULL(参数1,参数2) 函数进行求和运算时， 会判断参数1的值是否为

long between = cn.hutool.core.date.DateUtil.between(meterRecordsHoursDTO.getStartDate(), meterRecordsHoursDTO.getEndDate(), HOUR, true);

@LoginJWT @PostMapping("/exportMeterRecordsList.json") @NeedMonitorLog(bizCode = "exportMeterRecordsList",bizName = "能耗分析空间用能导出") public void exportMeterRecordsList(@Valid @RequestBody MeterRecordsHoursDTO meterRecordsHoursDTO,HttpServletRespo.

controller@LoginJWT @PostMapping("/spaceList.json") @NeedMonitorLog(bizCode = "spaceList",bizName = "空间查询下拉框") public ResultEntity<List<Tree<String>>> spaceList() { return ResultEntity.success(meterRecordsMonthManager

接口请求传参形式@LoginJWT @PostMapping("/getControlBasicInfoList.json") @NeedMonitorLog(bizCode = "getControlBasicInfoList",bizName = "中控屏管理的查詢信息") public ResultEntity<LitePageInfo<ControlBasicInfoVo>> getControlBasicInfoList(@Valid @Reque

1.map.getOrDefault方法是判断当map中不存在某个key时,返回默认值. public static void main(String[] args) { EmployDO zhangsan = new EmployDO.Builder().name("张三").sex("男").position("职员").status("在职").age("20").build(); EmployDO lisi = new EmployDO.Builder().n