后台代码提交

44323

2023-10-09 5df006aac405fe996fff71f7854e37c324892367

 cloud-server-course/src/main/java/com/dsh/course/util/DateUtil.java

@@ -237,6 +237,24 @@
        return dateStr;
    }


    /**
     * 得到n天之后的日期
     */
    public static String getAfterDayDate2(Date date,String days) {
        int daysInt = Integer.parseInt(days);

        Calendar canlendar = Calendar.getInstance(); // java.util包
        canlendar.setTime(date);
        canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动
        Date afterDate = canlendar.getTime();

        SimpleDateFormat sdfd = new SimpleDateFormat("yyyy-MM-dd");
        String dateStr = sdfd.format(afterDate);

        return dateStr;
    }

    /**
     * 得到n天之后是周几
     */
@@ -329,4 +347,38 @@
        return dt1.getTime();
    }


    /**
     * 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;
    }


}