根据提供的Date计算并转换为常用的日期标签：前天、昨天、凌晨、早上、下午、晚上、明天、后天、15天内等。
public static String getAutoTime(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);Calendar currentCalendar = Calendar.getInstance();currentCalendar.set(Calendar.HOUR_OF_DAY, 0);currentCalendar.set(Calendar.MINUTE, 0);currentCalendar.set(Calendar.SECOND, 0);currentCalendar.set(Calendar.MILLISECOND, 0);long dateL = calendar.getTimeInMillis();long nowL = currentCalendar.getTimeInMillis();if (dateL < nowL - 1296000000L) { // 比15天前还早if (calendar.get(Calendar.YEAR) == currentCalendar.get(Calendar.YEAR)) { // 在今年return getDate(date);} else {return getDateOneYear(date);}} else if (dateL < nowL - 172800000L) { // 比今天0时还早48小时以上return ((nowL - dateL) / 86400000L) + "天前";} else if (dateL < nowL - 86400000L) { // 比今天0时还早24小时以上return "前天 " + getTime(date);} else if (dateL < nowL) { // 比今天0时还早return "昨天 " + getTime(date);} else if (dateL < nowL + 21600000L) { // 今天6点前return "凌晨 " + getTime(date);} else if (dateL < nowL + 43200000L) { // 今天12点前return "早上 " + getTime(date);} else if (dateL < nowL + 64800000L) { // 今天18点前return "下午 " + getTime(date);} else if (dateL < nowL + 86400000L) { // 明天0时前return "晚上 " + getTime(date);} else if (dateL < nowL + 172800000L) { // 晚今天0时48小时内return "明天 " + getTime(date);} else if (dateL < nowL + 259200000L) { // 晚今天0时72小时内return "后天 " + getTime(date);} else {return getDateOneYear(date);}}
格式化日期的方法
public static String getBaseDate(Date date) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH:00", Locale.getDefault());return sdf.format(date);}public static String getDateOneYear(Date date) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日", Locale.getDefault());return sdf.format(date);}public static String getDate(Date date) {SimpleDateFormat sdf = new SimpleDateFormat("MM月dd日", Locale.getDefault());return sdf.format(date);}public static String getTime(Date date) {SimpleDateFormat sdf = new SimpleDateFormat("HH:mm", Locale.getDefault());return sdf.format(date);}public static String getWeek(int value) {switch (value) {case 1:return "周日";case 2:return "周一";case 3:return "周二";case 4:return "周三";case 5:return "周四";case 6:return "周五";default:return "周六";}}
获取今天昨天前天本周上周上上周时间段：/Honiler/article/details/89173722
