JAVA获取相对时间，几分前、几天前、几月前

喜欢ヅ旅行 2022-08-09 00:53 341阅读 0赞

# 1、工具类 #

public class RelativeDateFormat {
    
        private static final long ONE_MINUTE = 60000L;
        private static final long ONE_HOUR = 3600000L;
        private static final long ONE_DAY = 86400000L;
        private static final long ONE_WEEK = 604800000L;
    
        private static final String ONE_SECOND_AGO = "秒前";
        private static final String ONE_MINUTE_AGO = "分钟前";
        private static final String ONE_HOUR_AGO = "小时前";
        private static final String ONE_DAY_AGO = "天前";
        private static final String ONE_MONTH_AGO = "月前";
        private static final String ONE_YEAR_AGO = "年前";
    
        public static void main(String[] args) throws ParseException {
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:m:s");
            Date date = format.parse("2015-9-25 14:00:35");
            System.out.println(format(date));
        }
    
        public static String format(Date date) {
            long delta = new Date().getTime() - date.getTime();
            if (delta < 1L * ONE_MINUTE) {
                long seconds = toSeconds(delta);
                return (seconds <= 0 ? 1 : seconds) + ONE_SECOND_AGO;
            }
            if (delta < 45L * ONE_MINUTE) {
                long minutes = toMinutes(delta);
                return (minutes <= 0 ? 1 : minutes) + ONE_MINUTE_AGO;
            }
            if (delta < 24L * ONE_HOUR) {
                long hours = toHours(delta);
                return (hours <= 0 ? 1 : hours) + ONE_HOUR_AGO;
            }
            if (delta < 48L * ONE_HOUR) {
                return "昨天";
            }
            if (delta < 30L * ONE_DAY) {
                long days = toDays(delta);
                return (days <= 0 ? 1 : days) + ONE_DAY_AGO;
            }
            if (delta < 12L * 4L * ONE_WEEK) {
                long months = toMonths(delta);
                return (months <= 0 ? 1 : months) + ONE_MONTH_AGO;
            } else {
                long years = toYears(delta);
                return (years <= 0 ? 1 : years) + ONE_YEAR_AGO;
            }
        }
    
        private static long toSeconds(long date) {
            return date / 1000L;
        }
    
        private static long toMinutes(long date) {
            return toSeconds(date) / 60L;
        }
    
        private static long toHours(long date) {
            return toMinutes(date) / 60L;
        }
    
        private static long toDays(long date) {
            return toHours(date) / 24L;
        }
    
        private static long toMonths(long date) {
            return toDays(date) / 30L;
        }
    
        private static long toYears(long date) {
            return toMonths(date) / 365L;
        }
    
    }

#     #