查询一年中每一天的数据

当我们想要查询一年中每一天的数据应该怎么办

SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
//查询一年前的今天
Calendar c = Calendar.getInstance();
c.setTime(new Date());
c.add(Calendar.YEAR, -1);
Date beferOneyear = c.getTime();
//当天时间
Date today  = new Date();
// 封装开始时间和结束时间
req.setAccountingDtStart(sdf.format(beferOneyear));
req.setAccountingDtEnd(sdf.format(today));


//获取开始时间和结束时间中间的天数
LocalDate accountingDtStart = LocalDate.parse(req.getAccountingDtStart(),
        DateTimeFormatter.ofPattern("yyyyMMdd"));
LocalDate accountingDtEnd = LocalDate.parse(req.getAccountingDtEnd(), DateTimeFormatter.ofPattern("yyyyMMdd"));
List<LocalDate> totalList = getMiddleDate(accountingDtStart, accountingDtEnd);
List<LocalDate> pageList = page(totalList, page.getPageNum(), page.getPageSize());
//获取总共有多少天
pageList.forEach(item -> {
        // 创建业务类，根据日期天数讲业务类加到map中
        DevopsSummaryQueryResp devopsSummaryQueryResp = new DevopsSummaryQueryResp();
        devopsSummaryQueryResp.setAccountingDate(item.format(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
        map.put(item.format(DateTimeFormatter.ofPattern("yyyyMMdd")), devopsSummaryQueryResp);
});


    /**
     * 进行分页
     * @param begin
     * @param end
     * @return
     */
    public static <T> List<T> page(List<T> list, Integer pageNum, Integer pageSize) {
        if(pageNum == null && pageSize == null){
            return list;
        }
        int fromIndex = (pageNum - 1) * pageSize;
        int toIndex = pageNum * pageSize;
        if (fromIndex >= list.size()) {
            return Collections.emptyList();
        }
        if (toIndex >= list.size()) {
            toIndex = list.size();
        }
        return list.subList(fromIndex, toIndex);
    }
    
    /**
     * 获取开始时间和结束时间中间的天数
     * @param begin
     * @param end
     * @return
     */
    public static List<LocalDate> getMiddleDate(LocalDate begin, LocalDate end) {
        List<LocalDate> localDateList = new ArrayList<>();
        long length = end.toEpochDay() - begin.toEpochDay();
        for (int i = 0; i < length + 1; i++) {
            localDateList.add(end.minusDays(i));
        }
        return localDateList;
    }