From 6a4b079181d22a54a11dfdafd5400b171a1f3fc4 Mon Sep 17 00:00:00 2001 From: lisy <java@lishouyideAir.lan> Date: 星期三, 14 六月 2023 12:11:10 +0800 Subject: [PATCH] 开始上课:用户的学员信息主页查询接口(实体类,表的工具类) --- cloud-server-account/src/main/java/com/dsh/account/util/DateUtil.java | 39 +++++++++++++++++++++++++++++++++++++++ 1 files changed, 39 insertions(+), 0 deletions(-) diff --git a/cloud-server-account/src/main/java/com/dsh/account/util/DateUtil.java b/cloud-server-account/src/main/java/com/dsh/account/util/DateUtil.java index 605ec18..a546553 100644 --- a/cloud-server-account/src/main/java/com/dsh/account/util/DateUtil.java +++ b/cloud-server-account/src/main/java/com/dsh/account/util/DateUtil.java @@ -328,5 +328,44 @@ Date dt1 = rightNow.getTime(); return dt1.getTime(); } +// +// public static void main(String[] args) throws ParseException { +// String big = "1997-08-16"; +// SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); +// int age = DateUtil.age(simpleDateFormat.parse(big)); +// System.out.println(age); +// } + + /** + * 计算年龄 + * @param birthDate + * @return + */ + public static int age(Date birthDate) { + // 当前日历 + Calendar nowCalendar = Calendar.getInstance(); + // 生日大于当前日期 + if (nowCalendar.before(birthDate)) { + throw new IllegalArgumentException("The birth date is before current time, it's unbelievable"); + } + // 当前年月日 + int yearNow = nowCalendar.get(Calendar.YEAR); + int monthNow = nowCalendar.get(Calendar.MONTH); + int dayNow = nowCalendar.get(Calendar.DAY_OF_MONTH); + // 出生日期年月日 + Calendar birthCalendar = Calendar.getInstance(); + birthCalendar.setTime(birthDate); + int yearBirth = birthCalendar.get(Calendar.YEAR); + int monthBirth = birthCalendar.get(Calendar.MONTH); + int dayBirth = birthCalendar.get(Calendar.DAY_OF_MONTH); + // 粗计算年龄 + int age = yearNow - yearBirth; + // 当前月份小于出生月份年龄减一 + if (monthNow < monthBirth) { age--; } + // 当前月份等于出生月份,日小于生日年龄减一 + else if (monthNow == monthBirth && dayNow < dayBirth) { age--; } + // 返回年龄值 + return age; + } } -- Gitblit v1.7.1