Java计算两个时间相差的秒数怎么算

    public static void main(String[] args) throws ParseException {
        String startTime = "2021-10-18 14:05:00";
        String endTime = "2021-10-18 14:07:00";
        System.out.println(getTime(startTime, endTime));
    }
    //计算两个时间相差的秒数
    public static long getTime(String startTime, String endTime) throws ParseException {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        long eTime = df.parse(endTime).getTime();
        long sTime = df.parse(startTime).getTime();
        long diff = (eTime - sTime) / 1000;
        return diff;
    }

 <dependency>
       <groupId>cn.hutool</groupId>
       <artifactId>hutool-all</artifactId>
       <version>4.6.10</version>
</dependency>

    MS(1L),//毫秒
    SECOND(1000L),//秒
    MINUTE(SECOND.getMillis() * 60L),//分钟
    HOUR(MINUTE.getMillis() * 60L),//小时
    DAY(HOUR.getMillis() * 24L),//天
    WEEK(DAY.getMillis() * 7L);//周

String date1 = "2023-11-12 14:04:00";
String date2 = "2023-11-13 14:04:00";
long m = DateUtil.between(DateUtils.parseDate(date1),DateUtils.parseDate(date2), DateUnit.DAY);
long n = DateUtil.between(DateUtils.parseDate(date1),DateUtils.parseDate(date2), DateUnit.HOUR);
long o = DateUtil.between(DateUtils.parseDate(date1),DateUtils.parseDate(date2), DateUnit.MINUTE);
long p = DateUtil.between(DateUtils.parseDate(date1),DateUtils.parseDate(date2), DateUnit.SECOND);
long q = DateUtil.between(DateUtils.parseDate(date1),DateUtils.parseDate(date2), DateUnit.MS);
System.out.println("两个时间相差 "+m+" 天");
System.out.println("两个时间相差 "+n+" 小时");
System.out.println("两个时间相差 "+o+" 分钟");
System.out.println("两个时间相差 "+p+" 秒");
System.out.println("两个时间相差 "+q+" 毫秒")