package com.panzhihua.common.utlis;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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/**
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* Created by qing on 2017/3/28.
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*/
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public class AgeUtils {
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// 根据年月日计算年龄,birthTimeString:"1994-11-14"
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public static int getAgeFromBirthTime(String birthTimeString) {
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// 先截取到字符串中的年、月、日
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int selectYear = Integer.parseInt(birthTimeString.substring(0,4));
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int selectMonth = Integer.parseInt(birthTimeString.substring(4,6));
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int selectDay = Integer.parseInt(birthTimeString.substring(6,8));
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// 得到当前时间的年、月、日
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Calendar cal = Calendar.getInstance();
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int yearNow = cal.get(Calendar.YEAR);
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int monthNow = cal.get(Calendar.MONTH) + 1;
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int dayNow = cal.get(Calendar.DATE);
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// 用当前年月日减去生日年月日
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int yearMinus = yearNow - selectYear;
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int monthMinus = monthNow - selectMonth;
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int dayMinus = dayNow - selectDay;
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int age = yearMinus;// 先大致赋值
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if (yearMinus < 0) {// 选了未来的年份
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age = 0;
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} else if (yearMinus == 0) {// 同年的，要么为1，要么为0
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if (monthMinus < 0) {// 选了未来的月份
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age = 0;
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} else if (monthMinus == 0) {// 同月份的
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if (dayMinus < 0) {// 选了未来的日期
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age = 0;
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} else if (dayMinus >= 0) {
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age = 1;
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}
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} else if (monthMinus > 0) {
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age = 1;
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}
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} else if (yearMinus > 0) {
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if (monthMinus < 0) {// 当前月>生日月
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} else if (monthMinus == 0) {// 同月份的，再根据日期计算年龄
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if (dayMinus < 0) {
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} else if (dayMinus >= 0) {
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age = age + 1;
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}
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} else if (monthMinus > 0) {
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age = age + 1;
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}
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}
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return age;
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}
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// 根据时间戳计算年龄
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public static int getAgeFromBirthTime(long birthTimeLong) {
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Date date = new Date(birthTimeLong * 1000l);
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SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
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String birthTimeString = format.format(date);
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return getAgeFromBirthTime(birthTimeString);
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}
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public static void main(String[] args) {
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String yese = "19980516";
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String year = yese.substring(0,4);
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String month = yese.substring(4,6);
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String ri = yese.substring(6,8);
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System.out.println();
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}
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}
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