package com.stylefeng.guns.modular.system.util;
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import com.stylefeng.guns.core.util.DateUtil;
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import java.text.ParseException;
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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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import java.util.TimeZone;
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//日期转换年龄
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public class DataUtil {
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private static TimeZone tz = TimeZone.getTimeZone("GMT+8");
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public static int getAge(Date dateOfBirth) {
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int age = 0;
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Calendar born = Calendar.getInstance();
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Calendar now = Calendar.getInstance();
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if (dateOfBirth != null) {
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now.setTime(new Date());
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born.setTime(dateOfBirth);
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if (born.after(now)) {
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return age;
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// throw new IllegalArgumentException("年龄不能超过当前日期");
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}
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age = now.get(Calendar.YEAR) - born.get(Calendar.YEAR);
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int nowDayOfYear = now.get(Calendar.DAY_OF_YEAR);
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int bornDayOfYear = born.get(Calendar.DAY_OF_YEAR);
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// logger.debug("nowDayOfYear:" + nowDayOfYear + " bornDayOfYear:" + bornDayOfYear);
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if (nowDayOfYear < bornDayOfYear) {
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age -= 1;
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}
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}
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return age;
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}
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/**
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* 字符串日期转Date yyyy-MM-dd HH:mm:ss
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*
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* @param
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* @return
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*/
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public static Date getDate_str3(String dateStr) {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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sdf.setTimeZone(tz);
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if ("".equals(dateStr)) {
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dateStr = sdf.format(DateUtil.getDate());
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}
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Date date = null;
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try {
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date = sdf.parse(dateStr);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return date;
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}
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/**
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* 日期转毫秒
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*
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* @param date
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* @return
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*/
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public static long getMillisecond(Date date) {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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String newDate = "";
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if (!"".equals(date)) {
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newDate = sdf.format(date);
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} else {
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newDate = sdf.format(DateUtil.getDate());
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}
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long millisecond = 0;
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try {
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millisecond = sdf.parse(newDate).getTime();
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return millisecond;
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}
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/**
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* 两日期相差天数
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*
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* @param startDate
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* @param endDate
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* @return
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*/
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public static long getMinusDay(Date startDate, Date endDate) {
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long startMillisecond = getMillisecond(startDate);
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long endMillisecond = getMillisecond(endDate);
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long minusMillisecond = endMillisecond - startMillisecond;
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long day = 0;
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if (minusMillisecond < 0) {
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day = 0;
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} else {
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day = minusMillisecond / (24 * 3600 * 1000);
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}
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return day;
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}
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}
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