java获取时间间隔，获取当天每隔15分钟的时间

导入hutool依赖

<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>4.1.2</version>
</dependency>

    /**
     * 获取时间间隔（分钟）hutool的DateUtil
     * @return
     */
    public static int getBetweenMinute(Date date){
//        DateUtil.beginOfDay(new Date())当天时间凌晨
        //当前时间     目标时间        时间间隔类型（时、分、秒。。。）
        long between = DateUtil.between(DateUtil.date(), date, DateUnit.MINUTE);
        return Math.toIntExact(between);
    }

    /**
    * 生成相隔时间的数组
    */
    public static List<String> minuteList(){
        Date date = new Date();
        List<Date> ds = test(date);
        List<String> list = new ArrayList<>();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (Date d : ds) {
            list.add(sdf.format(d));
        }
        return list;
    }
    public static void main(String[] args) {
//        Date date = new Date();
//        List<Date> ds = test(date);
//
//        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//        for (Date d : ds) {
//            System.out.println(sdf.format(d));
//        }
        System.out.println(minuteList());
    }

    public static List<String> findDates(String stime, String etime)
            throws ParseException {
        List<String> allDate = new ArrayList();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

        Date dBegin = sdf.parse(stime);
        Date dEnd = sdf.parse(etime);
        allDate.add(sdf.format(dBegin));
        Calendar calBegin = Calendar.getInstance();
        // 使用给定的 Date 设置此 Calendar 的时间
        calBegin.setTime(dBegin);
        Calendar calEnd = Calendar.getInstance();
        // 使用给定的 Date 设置此 Calendar 的时间
        calEnd.setTime(dEnd);
        // 测试此日期是否在指定日期之后
        while (dEnd.after(calBegin.getTime())) {
            // 根据日历的规则，为给定的日历字段添加或减去指定的时间量
            calBegin.add(Calendar.DAY_OF_MONTH, 1);
            allDate.add(sdf.format(calBegin.getTime()));
        }
        return allDate;
    }

    static List<Date> test(Date date) {
        Date start = dayStartDate(date);//转换为天的起始date
        Date nextDayDate = nextDay(start);//下一天的date

        List<Date> result = new ArrayList<Date>();
        while (start.compareTo(nextDayDate) < 0) {
            result.add(start);
            //日期加5分钟
            start = addFiveMin(start, 15);
        }
        return result;
    }

    private static Date addFiveMin(Date start, int offset) {
        Calendar c = Calendar.getInstance();
        c.setTime(start);
        c.add(Calendar.MINUTE, offset);
        return c.getTime();
    }

    private static Date nextDay(Date start) {
        Calendar c = Calendar.getInstance();
        c.setTime(start);
        c.add(Calendar.DATE, 1);
        return c.getTime();
    }

    private static Date dayStartDate(Date date) {
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.set(Calendar.HOUR_OF_DAY, 0);
        c.set(Calendar.MINUTE, 0);
        c.set(Calendar.SECOND, 0);
        c.set(Calendar.MILLISECOND, 0);
        return c.getTime();
    }
    /**
     * @author wuqs
     * @version 1.0.0
     * @Description 获取i分钟后的时间
     * @createTime 2021年11月29日 15:58:00
     */
    public static String getMinute(int i) {
        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
        Calendar nowTime2 = Calendar.getInstance();
        nowTime2.add(Calendar.MINUTE, i * 15);
        return sdf.format(nowTime2.getTime());
    }