package com.ycl.common.util;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.time.ZonedDateTime;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.TimeZone;
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public class DateUtil {
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/**
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* 获取两日期之间间隔的天数
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*
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* @param smdate
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* 较小的时间
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* @param bdate
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* 较大的时间
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* @return 相差天数
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*/
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public static int daysBetween(Date smdate, Date bdate) {
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long between_days = 0;
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try {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
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smdate = sdf.parse(sdf.format(smdate));
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bdate = sdf.parse(sdf.format(bdate));
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Calendar cal = Calendar.getInstance();
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cal.setTime(smdate);
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long time1 = cal.getTimeInMillis();
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cal.setTime(bdate);
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long time2 = cal.getTimeInMillis();
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between_days = (time2 - time1) / (1000 * 3600 * 24);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return Integer.parseInt(String.valueOf(between_days));
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}
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public static boolean isBetween(Date date, Date startDate, Date endDate) {
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try {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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startDate = sdf.parse(sdf.format(startDate));
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endDate = sdf.parse(sdf.format(endDate));
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date = sdf.parse(sdf.format(date));
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Calendar cal = Calendar.getInstance();
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cal.setTime(date);
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long time0 = cal.getTimeInMillis();
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cal.setTime(startDate);
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long time1 = cal.getTimeInMillis();
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cal.setTime(endDate);
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long time2 = cal.getTimeInMillis();
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if (time0 > time1 && time0 <= time2)
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return true;
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return false;
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}
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public static long DifferMillis(Date sDate, Date eDate) {
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try {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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sDate = sdf.parse(sdf.format(sDate));
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eDate = sdf.parse(sdf.format(eDate));
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Calendar cal = Calendar.getInstance();
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cal.setTime(sDate);
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long time1 = cal.getTimeInMillis();
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cal.setTime(eDate);
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long time2 = cal.getTimeInMillis();
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return Math.abs(time1 - time2);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return -1L;
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}
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public static long DifferSeconds(Date sDate, Date eDate) {
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return DifferMillis(sDate, eDate) / 1000;
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}
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/**
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* 相差分钟数
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*
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* @param sDate
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* @param eDate
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* @return
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*/
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public static long DifferMinutes(Date sDate, Date eDate) {
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return Long.parseLong(String.valueOf(DifferMillis(sDate, eDate)
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/ (1000 * 60)));
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}
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public static String getNowDate(String format) {
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return new SimpleDateFormat(format).format(new Date());
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}
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public static String getDateString(Date date, String format) {
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return new SimpleDateFormat(format).format(date);
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}
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public static Date parse(String date, String format) {
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try {
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return new SimpleDateFormat(format).parse(date);
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} catch (ParseException e) {
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// TODO Auto-generated catch block
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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 boolean nowTimeBetween(String beginTimeStr, String endTimeStr)
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throws ParseException {
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SimpleDateFormat dateFormat = new SimpleDateFormat("hh:mm:ss");
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Long beginTime = dateFormat.parse(beginTimeStr).getTime();
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Long endTime = dateFormat.parse(endTimeStr).getTime();
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Long nowTime = dateFormat.parse(dateFormat.format(new Date()))
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.getTime();
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if (nowTime >= beginTime && nowTime <= endTime) {
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return true;
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}
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return false;
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}
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@SuppressWarnings("static-access")
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public static Date addDate(Date date, int days) {
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Calendar calendar = new GregorianCalendar();
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calendar.setTime(date);
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calendar.add(calendar.DATE, days);// 把日期往后增加一天.整数往后推,负数往前移动
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return calendar.getTime(); // 这个时间就是日期往后推一天的结果
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}
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@SuppressWarnings("static-access")
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public static Date addHour(Date date, int hour) {
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Calendar calendar = new GregorianCalendar();
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calendar.setTime(date);
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calendar.add(calendar.HOUR, hour);// 把日期往后增加一天.整数往后推,负数往前移动
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return calendar.getTime(); // 这个时间就是日期往后推一天的结果
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}
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@SuppressWarnings("static-access")
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public static Date addMinute(Date date, int minute) {
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Calendar calendar = new GregorianCalendar();
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calendar.setTime(date);
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calendar.add(calendar.MINUTE, minute);// 把日期往后增加一天.整数往后推,负数往前移动
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return calendar.getTime(); // 这个时间就是日期往后推一天的结果
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}
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@SuppressWarnings("static-access")
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public static Date addSecond(Date date, int second) {
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Calendar calendar = new GregorianCalendar();
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calendar.setTime(date);
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calendar.add(calendar.SECOND, second);// 把日期往后增加一天.整数往后推,负数往前移动
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return calendar.getTime(); // 这个时间就是日期往后推一天的结果
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}
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/**
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* 统计两个时间的时间差
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* two-one
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* 相差几秒几毫秒
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*/
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public static String getDistanceDateTime(Date one, Date two) {
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long day = 0;//天数差
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long hour = 0;//小时数差
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long min = 0;//分钟数差
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long second=0;//秒数差
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long diff=0 ;//毫秒差
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String result = "";
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final Calendar c = Calendar.getInstance();
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c.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
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c.setTime(one);
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long time1 = one.getTime();
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long time2 = two.getTime();
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diff = time2 - time1;
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day = diff / (24 * 60 * 60 * 1000);
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hour = (diff / (60 * 60 * 1000) - day * 24);
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min = ((diff / (60 * 1000)) - day * 24 * 60 - hour * 60);
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second = diff/1000;
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System.out.println("day="+day+" hour="+hour+" min="+min+" ss="+second%60+" SSS="+diff%1000);
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String daystr = day%30+"天";
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String hourStr = hour%24+"小时";
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String minStr = min%60+"分";
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String secondStr = second%60+"秒";
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if (day!=0){
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result = result + daystr;
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}
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if (hour!=0){
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result = result + hourStr;
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}
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if (min!=0){
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result = result + minStr;
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}
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if (second!=0){
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result = result + secondStr;
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}
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return result;
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}
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public static Date fromLocalDateTime(LocalDateTime ldt){
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ZoneId zoneId = ZoneId.systemDefault();
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ZonedDateTime zdt = ldt.atZone(zoneId);
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Date date = Date.from(zdt.toInstant());
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return date ;
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}
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public static void main(String[] args) throws ParseException {
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Calendar calendar = Calendar.getInstance();
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calendar.add(Calendar.DATE,-1);
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calendar.add(Calendar.HOUR,-6);
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calendar.add(Calendar.MINUTE,-5);
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calendar.add(Calendar.SECOND,-4);
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calendar.add(Calendar.MILLISECOND, -30);
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Date date = calendar.getTime();
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Date today = new Date();
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System.out.println(getDistanceDateTime(date,today));
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}
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}
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