package com.mm.util;
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import java.text.DecimalFormat;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.*;
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import java.util.regex.Pattern;
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/**
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* Created by Administrator on 2015/8/28.
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*/
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public class DateUtil {
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public static final String STR_DATE_STRING = "yyyy_MM_dd";
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public static final String STR_DATE = "yyyy-MM-dd";
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public static final String STRDATE = "yyyyMMdd";
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public static final String STR_YEAR_MONTH = "yyyy-MM";
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public static final String STR_DATE_TIME = "yyyy-MM-dd HH:mm:ss.SSS";
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public static final String STR_DATE_TIME_SMALL = "yyyy-MM-dd HH:mm:ss";
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public static final String STR_DATE_TIME_MIN = "yyyy-MM-dd HH:mm";
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public static final String STR_DATE_TIME_HOUR = "yyyy-MM-dd HH";
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public static final String STR_DATE_TIME_FULL = "yyyyMMddHHmmssSSS";
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public static final String STR_HHMMSS = "HH:mm:ss";
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public static final String STR_HHMM = "HH:mm";
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/**
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* <p>
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* Description: 实际投标月份
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* </p>
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*
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* @param startDate
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* @param endDate
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* @return obj [0] 实际投标月份 例如实际投标月份（3.86）意义是3个月又26天 obj[1] 实际取整月份 （3）
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*/
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public static Integer getRealMonth(Date startDate, Date endDate) {
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Integer month = 0;
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Calendar start = Calendar.getInstance();
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start.setTime(startDate);
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Calendar end = Calendar.getInstance();
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end.setTime(endDate);
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int year = start.get(Calendar.YEAR);
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int year2 = end.get(Calendar.YEAR);
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int month2 = start.get(Calendar.MONTH);
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int month3 = end.get(Calendar.MONTH);
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try {
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while (start.before(end)) {
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start.add(Calendar.MONTH, 1);
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month++;
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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int day2 = start.get(Calendar.DAY_OF_MONTH);
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int day3 = end.get(Calendar.DAY_OF_MONTH);
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int tmpYear = year2 - year;
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if (day2 == day3) {
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return (tmpYear * 12) + (month3 - month2);
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}
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return month == 0 ? month : (month - 1);
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}
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public static Date getNow() {
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return new Date(System.currentTimeMillis());
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}
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public static int getDayOfMonth() {
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Calendar aCalendar = Calendar.getInstance(Locale.CHINA);
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int day = aCalendar.getActualMaximum(Calendar.DATE);
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return day;
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}
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/**
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* <p>
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* Description: 修改时间为指定时间当天的23:59:59.000
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* </p>
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*
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* @param date
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* 需要修改的时间
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* @return 修改后的时间
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*/
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public static Date fillTime(Date date) {
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Date result = removeTime(date);
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result.setTime(result.getTime() + 24 * 60 * 60 * 1000 - 1000); // 加一天
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return result;
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}
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/**
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* @param date
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* 当前时间
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* @param i
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* 往前几天
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* @return
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*/
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public static Date fillBeforeTime(Date date, Integer i) {
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Date result = removeTime(date);
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Calendar calendar = Calendar.getInstance(); // 得到日历
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calendar.setTime(result);// 把当前时间赋给日历
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calendar.add(Calendar.DAY_OF_MONTH, i); // 设置为前一天
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result.setTime(calendar.getTime().getTime() + 24 * 60 * 60 * 1000
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- 1000); // 加一天
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return result;
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}
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/**
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* <p>
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* Description: 修改时间为指定时间前一天的00:00:00
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* </p>
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*
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* @param date
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* 需要修改的时间
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* @return 修改后的时间
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*/
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public static Date plusTime(Date date, Integer i) {
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Date result = removeTime(date);
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Calendar calendar = Calendar.getInstance(); // 得到日历
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calendar.setTime(result);// 把当前时间赋给日历
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calendar.add(Calendar.DAY_OF_MONTH, i); // 设置为前一天
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return calendar.getTime();
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}
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/**
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* <p>
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* Description: 去掉日期时间中的时间部分
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* </p>
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* 如: 2013-11-11 18:56:33 ---> 2013-11-11 00:00:00
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*
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* @param date
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* 需要修改的时间
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* @return 修改后的时间
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*/
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public static Date removeTime(Date date) {
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Date result = null;
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try {
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SimpleDateFormat df = new SimpleDateFormat(STR_DATE);
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String dateStr = df.format(date);
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result = df.parse(dateStr);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return result;
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}
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/**
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* <p>
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* Description: 按默认格式(yyyy-MM-dd HH:mm:ss.SSS)获取时间字符串
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* </p>
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*
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* @param date
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* 要转换的日期
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* @return 转换后的时间字符串
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*/
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public static String format(Date date) {
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SimpleDateFormat df = new SimpleDateFormat(STR_DATE_TIME);
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return df.format(date);
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}
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public static Date parseDate(Date date,String format){
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SimpleDateFormat df = new SimpleDateFormat(format);
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try {
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date = df.parse(df.format(date));
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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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public static Date getDelayedYear(){
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Calendar curr = Calendar.getInstance();
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curr.set(Calendar.YEAR,curr.get(Calendar.YEAR)+1);
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Date date=curr.getTime();
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return date;
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}
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/**
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* <p>
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* Description: 按指定格式获取时间字符串
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* </p>
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*
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* @param date
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* 要转换的日期
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* @param format
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* 格式,例如:yyyy-MM-dd HH:mm:ss.SSS
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* @return 转换后的时间字符串
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*/
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public static String format(Date date, String format) {
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SimpleDateFormat df = new SimpleDateFormat(format);
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return df.format(date);
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}
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/**
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* <p>
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* Description: 加月函数
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* </p>
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*
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* @param month
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* 月份数
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* @return
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*/
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public static Date addMonth(Integer month, Date time) {
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Calendar c = Calendar.getInstance();
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c.setTime(time);
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c.add(Calendar.MONTH, month);
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return c.getTime();
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}
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public static Boolean greater(Date startTime, Date endTime) {
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return startTime.getTime() > endTime.getTime();
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}
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public static Boolean less(Date startTime, Date endTime) {
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return startTime.getTime() < endTime.getTime();
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}
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public static Boolean equals(Date startTime, Date endTime) {
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return startTime.getTime() == endTime.getTime();
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}
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public static Integer getDiffMonth(Calendar c, Calendar c1) {
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return (c.get(Calendar.YEAR) - c1.get(Calendar.YEAR)) * 12
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+ (c.get(Calendar.MONTH) - c1.get(Calendar.MONTH));
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}
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/**
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* 是否为同一天
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*/
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public static boolean equalsDay(Date a, Date b) {
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return removeTime(a).getTime() == removeTime(b).getTime();
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}
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public static Integer getDays(Date startTime, Date endTime) {
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Calendar c = Calendar.getInstance();
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c.setTime(startTime);
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Calendar c1 = Calendar.getInstance();
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c1.setTime(endTime);
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long t1 = c.getTimeInMillis();
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long t2 = c1.getTimeInMillis();
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// 计算天数
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Long days = (t2 - t1) / (24 * 60 * 60 * 1000);
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return days.intValue();
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}
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public static Integer getSeconds(Date startTime, Date endTime) {
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Calendar c = Calendar.getInstance();
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c.setTime(startTime);
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Calendar c1 = Calendar.getInstance();
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c1.setTime(endTime);
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long t1 = c.getTimeInMillis();
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long t2 = c1.getTimeInMillis();
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// 计算秒数
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Long days = (t2 - t1) / (1000);
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return days.intValue();
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}
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//获取小时差
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public static double subHours(Date startTime, Date endTime) {
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Calendar c = Calendar.getInstance();
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c.setTime(startTime);
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Calendar c1 = Calendar.getInstance();
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c1.setTime(endTime);
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double t1 = c.getTimeInMillis();
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double t2 = c1.getTimeInMillis();
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// 计算天数
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double hours = (t2 - t1) / (1000 * 60 * 60);
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return Double.valueOf(new DecimalFormat("#.00").format(hours));
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}
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//根据当前时间和出生日期获取年龄
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public static int getAge(Date birthDay){
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Calendar cal = Calendar.getInstance();
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// 取出系统当前时间的年、月、日部分
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int yearNow = cal.get(Calendar.YEAR);
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int monthNow = cal.get(Calendar.MONTH);
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int dayOfMonthNow = cal.get(Calendar.DAY_OF_MONTH);
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cal.setTime(birthDay);
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// 取出出生日期的年、月、日部分
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int yearBirth = cal.get(Calendar.YEAR);
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int monthBirth = cal.get(Calendar.MONTH);
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int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH);
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// 当前年份与出生年份相减，初步计算年龄
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int age = yearNow - yearBirth;
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// 当前月份与出生日期的月份相比，如果月份小于出生月份，则年龄上减1，表示不满多少周岁
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if (monthNow <= monthBirth){
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// 如果月份相等，在比较日期，如果当前日，小于出生日，也减1，表示不满多少周岁
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if (monthNow == monthBirth){
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if (dayOfMonthNow < dayOfMonthBirth)
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age--;
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}else {
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age--;
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}
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}
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return age;
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}
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public static Date subDays(Date startTime, Integer day) {
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Calendar c = Calendar.getInstance();
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c.setTime(startTime);
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c.add(Calendar.DATE, day * -1);
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return c.getTime();
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}
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public static Date addDays(Date startTime, Integer day) {
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Calendar c = Calendar.getInstance();
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c.setTime(startTime);
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c.add(Calendar.DATE, day );
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return c.getTime();
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}
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/*public static Date addHours(Date startTime, Integer hours) {
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Calendar c = Calendar.getInstance();
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c.setTime(startTime);
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c.add(Calendar.HOUR, hours );
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return c.getTime();
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}*/
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public static Date toDate(String date, String format){
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SimpleDateFormat df = new SimpleDateFormat(format);
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try {
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return df.parse(date);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return null;
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}
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public static Date toDateFull(String date){
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SimpleDateFormat df = new SimpleDateFormat(STR_DATE_TIME);
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try {
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return df.parse(date);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return null;
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}
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public static Date toDateMedium(String date){
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SimpleDateFormat df = new SimpleDateFormat(STR_DATE_TIME_SMALL);
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try {
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Date dd = df.parse(date);
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return dd;
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} catch (ParseException e) {
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return null;
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}
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}
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public static Integer getDate(Date date) {
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if (date != null) {
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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int day = calendar.get(Calendar.DATE);
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return day;
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}
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return null;
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}
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public static Integer getYear() {
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return getYear(new Date());
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}
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public static Integer getYear(Date date) {
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if (date != null) {
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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int year = calendar.get(Calendar.YEAR);
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return year;
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}
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return null;
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}
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public static Integer getMonth() {
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return getMonth(new Date());
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}
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public static Integer getMonth(Date date) {
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if (date != null) {
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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int month = calendar.get(Calendar.MONTH);
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return month+1;
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}
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return null;
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}
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public static Integer getDay() {
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return getDay(new Date());
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}
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public static Integer getDay(Date date) {
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if (date != null) {
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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int day = calendar.get(Calendar.DAY_OF_MONTH);
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return day;
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}
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return null;
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}
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public static Date[] getMonthStartTimeAndEndTime(Integer month){
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Calendar calendar = Calendar.getInstance();
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Date[] dates = new Date[2];
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Date startTime = null;
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Date endsTime = null;
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if(month != null){
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calendar.set(Calendar.MONTH, month);
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//获得到本月的第一天
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calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
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startTime = calendar.getTime();
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startTime = DateUtil.removeTime(startTime);
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//获得到本月的最后一天
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calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
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endsTime = calendar.getTime();
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endsTime = DateUtil.fillTime(endsTime);
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}
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dates[0] = startTime;
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dates[1] = endsTime;
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return dates;
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}
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public static Date[] getMonthStartTimeAndEndTime(Date date){
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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Integer month = calendar.get(Calendar.MONTH);
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Date[] dates = new Date[2];
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Date startTime = null;
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Date endsTime = null;
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if(month != null){
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calendar.set(Calendar.MONTH, month);
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//获得到本月的第一天
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calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
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startTime = calendar.getTime();
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startTime = DateUtil.removeTime(startTime);
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//获得到本月的最后一天
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calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
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endsTime = calendar.getTime();
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endsTime = DateUtil.fillTime(endsTime);
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}
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dates[0] = startTime;
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dates[1] = endsTime;
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return dates;
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}
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/**
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* 获取days天的时间区间，endTime 为当天的后一天0点，
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* startTime 为endTime前days天
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* @param days
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* @return
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*/
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public static Date[] getDaysStartTimeAndEndTime(Integer days) {
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Date[] dates = new Date[2];
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Date endDate = plusTime(removeTime(getNow()), 1);
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Date startDate = subDays(endDate, days);
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dates[0] = startDate;
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dates[1] = endDate;
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return dates;
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}
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/**
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* 根据某一年获取最后一天的时间
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* 2013 ---> 2013-12-31 23:59:59.000
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* @param year
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* @return
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*/
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public static Date getYearEndDay(Integer year) {
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Calendar calendar = Calendar.getInstance();
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calendar.clear();
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calendar.set(Calendar.YEAR, year);
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calendar.roll(Calendar.DAY_OF_YEAR, -1);
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Date yearLast = calendar.getTime();
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Date lastYear = DateUtil.fillTime(yearLast);
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return lastYear;
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}
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/**
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* 获取start/end的所有日期字符串 格式yyyy-MM-dd
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* @param start
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* @param end
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* @return
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*/
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public static List<String> getDatesStringList(Date start, Date end) {
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List<String> list = new ArrayList<>();
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int i = getDays(start, end);
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for(int j = 0; j <= i; j++) {
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if(j == 0) {
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list.add(format(start, STR_DATE));
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} else {
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list.add(format(plusTime(start, j), STR_DATE));
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}
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}
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return list;
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}
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public static List<String> getMonthBetween(Date start, Date end){
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List<String> list = new ArrayList<>();
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Calendar min = Calendar.getInstance();
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Calendar max = Calendar.getInstance();
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min.setTime(start);
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min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
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max.setTime(end);
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max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
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Calendar curr = min;
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while (curr.before(max)){
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list.add(format(curr.getTime(),STR_YEAR_MONTH));
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curr.add(Calendar.MONTH,1);
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}
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return list;
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}
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/**
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* 获取dateStr的日期格式yyyy-MM-dd
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* @param dateStr
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* @return
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*/
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public static Date getShortDate(String dateStr) {
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SimpleDateFormat sdf = new SimpleDateFormat(STR_DATE);
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Date startTime = null;
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try {
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startTime = sdf.parse(dateStr);
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} catch (ParseException e) {
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}
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return startTime == null ? removeTime(new Date()) : startTime;
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}
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public static Date getFormatDate(String dateStr,String format) {
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SimpleDateFormat sdf = new SimpleDateFormat(format);
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Date startTime = null;
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try {
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startTime = sdf.parse(dateStr);
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} catch (ParseException e) {
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}
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return startTime == null ? removeTime(new Date()) : startTime;
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}
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/**
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*
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* @param time
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* @param n
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* @return 在一个时间上加秒
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*/
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public static Date addSecond(Date time,Integer n) {
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Calendar c = Calendar.getInstance();
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c.setTime(time);
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c.add(Calendar.SECOND, n);
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return c.getTime();
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}
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/**
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*
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* @param time
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* @param n
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* @return 在一个时间上加分钟
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*/
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public static Date addMinute(Date time,Integer n) {
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Calendar c = Calendar.getInstance();
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c.setTime(time);
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c.add(Calendar.MINUTE, n);
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return c.getTime();
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}
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/**
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*
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* @param time
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* @param n
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* @return 在一个时间上加小时
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*/
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public static Date addHour(Date time,Integer n) {
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Calendar c = Calendar.getInstance();
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c.setTime(time);
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c.add(Calendar.HOUR_OF_DAY, n);
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return c.getTime();
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}
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/**
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* 获取start/end的所有日期字符串 格式yyyy-MM-dd
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* @param start
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* @param end
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* @return
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*/
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public static List<String> getDateMonth(String start, String end) {
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List<String> list = new ArrayList<>();
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SimpleDateFormat yyyyMM = new SimpleDateFormat("yyyy-MM");
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Date startyear = null;
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try {
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startyear = yyyyMM.parse(start);
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Date endyear = yyyyMM.parse(end);
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Calendar dd = Calendar.getInstance();//定义日期实例
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dd.setTime(startyear);//设置日期起始时间
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while (dd.getTime().before(endyear)) {//判断是否到结束日期
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String str = yyyyMM.format(dd.getTime());
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dd.add(Calendar.MONTH, 1);//进行当前日期月份加1
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list.add(str);
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}
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list.add(yyyyMM.format(endyear));
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return list;
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}
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/**
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* 获取start/end的所有日期字符串 格式yyyy
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* @param start
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* @param end
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* @return
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*/
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public static List<String> getDateYear(String start, String end) {
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List<String> list = new ArrayList<>();
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SimpleDateFormat yyyy = new SimpleDateFormat("yyyy");
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Date startyear = null;
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try {
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startyear = yyyy.parse(start);
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Date endyear = yyyy.parse(end);
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Calendar dd = Calendar.getInstance();//定义日期实例
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dd.setTime(startyear);//设置日期起始时间
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while (dd.getTime().before(endyear)) {//判断是否到结束日期
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String str = yyyy.format(dd.getTime());
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dd.add(Calendar.YEAR, 1);//进行当前日期月份加1
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list.add(str);
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}
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list.add(yyyy.format(endyear));
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return list;
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}
|
/**
|
* 获取当前时间 定位到小时
|
* 格式为 yyyy-MM-dd hh:mm
|
* 例：2018-02-27 11:00
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* @return
|
*/
|
public static Date getNowHourDate() {
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Date now = getNow();
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Date result;
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(now);
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int hour = calendar.get(Calendar.HOUR_OF_DAY);
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String dateStr = format(now, STR_DATE);
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dateStr = dateStr + " " + (hour < 10 ? "0" + hour : hour) + ":00";
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result = toDate(dateStr, STR_DATE_TIME_MIN);
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return result;
|
}
|
|
/**
|
* 获取每日8:11或11:11的时间点
|
* @return
|
*/
|
public static Date getNowHourDateTo() {
|
Date now = getNow();
|
Date result;
|
Calendar calendar = Calendar.getInstance();
|
calendar.setTime(now);
|
int hour = calendar.get(Calendar.HOUR_OF_DAY);
|
if(hour != 8 && hour != 11) {
|
return null;
|
}
|
int minute = calendar.get(Calendar.MINUTE);
|
if(minute < 11) {
|
return null;
|
}
|
String dateStr = format(now, STR_DATE);
|
dateStr = dateStr + " " + (hour < 10 ? "0" + hour : hour) + ":11";
|
result = toDate(dateStr, STR_DATE_TIME_MIN);
|
return result;
|
}
|
|
/**
|
* 获取每日8:00、13:00、20:00的时间点
|
* @return
|
*/
|
public static List<Date> getHourDateList(Date time) {
|
List<Date> result = new ArrayList<>();
|
result.add(addHour(time,8));
|
result.add(addHour(time,13));
|
result.add(addHour(time,20));
|
return result;
|
}
|
|
/**
|
* 获取上月的最后一天
|
* @return
|
*/
|
public static Date getPreviousMonthLastDay() {
|
Calendar calendar = Calendar.getInstance();
|
calendar.set(Calendar.DAY_OF_MONTH, 0);
|
return DateUtil.removeTime(calendar.getTime());
|
}
|
|
/**
|
* 获取end时间月的第一天
|
* @param end 月份最后一天
|
* @return
|
*/
|
public static Date getTheMonthFirstDay(Date end) {
|
Calendar calendar = Calendar.getInstance();
|
calendar.setTime(end);
|
calendar.set(Calendar.DAY_OF_MONTH, 1);
|
return calendar.getTime();
|
}
|
|
|
public static String secToTime(int time) {
|
String timeStr = null;
|
int hour = 0;
|
int minute = 0;
|
int second = 0;
|
if (time <= 0)
|
return " ";
|
else {
|
minute = time / 60;
|
if (minute < 60) {
|
second = time % 60;
|
timeStr = unitFormat(minute) + "分" + unitFormat(second) + " 秒";
|
} else {
|
hour = minute / 60;
|
minute = minute % 60;
|
second = time - hour * 3600 - minute * 60;
|
timeStr = unitFormat(hour) + "小时" + unitFormat(minute) + "分" + unitFormat(second) + "秒";
|
}
|
}
|
return timeStr;
|
}
|
|
public static String unitFormat(int i) {
|
String retStr = null;
|
if (i >= 0 && i < 10)
|
retStr = "0" + Integer.toString(i);
|
else
|
retStr = "" + i;
|
return retStr;
|
}
|
/**
|
* 验证时间
|
*
|
* @param time 时间字符串 HH:mm
|
* @return 验证成功返回true，验证失败返回false
|
*/
|
public static boolean checkTime(String time) {
|
String regex = "([0-1][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])$";
|
return Pattern.matches(regex, time);
|
}
|
|
/**
|
* 获取每日07:30:00的时间点
|
* 格式为 yyyy-MM-dd HH:mm:ss
|
* 例：2018-05-28 07:30:00
|
*
|
* @return
|
*/
|
public static Date getHourDateTo(Date now, String time) {
|
String dateStr = format(now, STR_DATE);
|
dateStr = dateStr + " " + time;
|
Date result = toDate(dateStr, STR_DATE_TIME_SMALL);
|
return result;
|
}
|
}
|
