package com.yql.mytest.utils;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.temporal.ChronoUnit;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
public class DateUtils {
/**
* 返回指定月数的日期
*
* @param date
* @param month
* @return
* @author guos
* @date 2019/4/13 16:26
**/
public static Date getExpireMonth(Date date, int month) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.MONTH, month);
return cal.getTime();
}
/**
* 返回指定天数的日期
*
* @param date
* @param day
* @return
*/
public static Date getExpireDate(Date date, int day) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_MONTH, day);
return cal.getTime();
}
/**
* 返回指定分钟后的日期
* @param date
* @param minute
* @return
*/
public static Date getExpireMinute(Date date, int minute) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.MINUTE, minute);
return cal.getTime();
}
/**
* <p>Title: getExpireHour</p>
* <p>Description: 返回指定日期多少小时后的时间</p>
*
* @param date
* @param hour
* @return
* @author yql
*/
public static Date getExpireHour(Date date, int hour) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.HOUR_OF_DAY, hour);
return cal.getTime();
}
/**
* 根据指定参数kind,获取指定类型的Date日期(年月日)
*
* @param kind 指定参数
* @return Date 指定类型的Date
*/
public static Date getFormatDate(Date date, int kind) {
String currentDateStr = formatDate(date, kind);
return toDate(currentDateStr, kind);
}
/**
* 根据kind输出string格式
*
* @param date
* @param kind
* @return
*/
public static String formatDate(Date date, int kind) {
SimpleDateFormat sdf = new SimpleDateFormat(getDateFormat(kind));
return sdf.format(date);
}
public static String formatCurrentDate(int kind) {
SimpleDateFormat sdf = new SimpleDateFormat(getDateFormat(kind));
return sdf.format(new Date());
}
public static Date toDate(String dateText, int kind) {
String format = getDateFormat(kind);
if (dateText == null) {
return null;
}
DateFormat df = null;
try {
if (format == null) {
df = new SimpleDateFormat();
} else {
df = new SimpleDateFormat(format);
}
df.setLenient(false);
return df.parse(dateText);
} catch (ParseException e) {
return null;
}
}
private static String getDateFormat(int kind) {
String[] format = {"yyyy-MM-dd", // 0
"yyyy-MM-dd HH:mm:ss", // 1
"yyyy",// 2
"M",// 3
"dd", // 4
"yyyy年M月d日H点m分", // 5
"yyyy年M月d日", // 6
"H点m分", // 7
"yyyy/MM/dd HH:mm", // 8
"HH",// 9
"mm",// 10
"yyyyMMdd", // 11
"yyyyMMddHHmmss", // 12
"yyyy-MM-dd 23:59:59", // 13
"HH:mm:ss", // 14
"yyyy/MM/dd HH:mm:ss", // 15
"yyyy/MM/dd HH:mm",//16
"HHmmss",//17,
"HH:mm:ss", //18
"mmss", //19
"HH:mm", //20
"yyyy-MM-dd HH:mm", //21
"yyyyMMddHHmm", // 22
};
return format[kind];
}
/**
* 计算两个日期的秒数之差
*
* @param oldDate
* @param newDate
* @return
*/
public static long secondsBetween(Date oldDate, Date newDate) {
long between = (newDate.getTime() / 1000 - oldDate.getTime() / 1000);//除以1000是为了转换成秒
return between;
}
/**
* 计算传入时间距离24点剩余秒数
*
* @param currentDate
* @return
*/
public static Integer getRemainSecondsOneDay(Date currentDate) {
LocalDateTime midnight = LocalDateTime.ofInstant(currentDate.toInstant(),
ZoneId.systemDefault()).plusDays(1).withHour(0).withMinute(0)
.withSecond(0).withNano(0);
LocalDateTime currentDateTime = LocalDateTime.ofInstant(currentDate.toInstant(),
ZoneId.systemDefault());
long seconds = ChronoUnit.SECONDS.between(currentDateTime, midnight);
return (int) seconds;
}
/**
* 获得某天最小时间 2018-01-01 00:00:00
*
* @param date
* @return
*/
public static Date getMinTimeOfDay(Date date) {
if (date == null) {
return null;
}
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()),
ZoneId.systemDefault());
LocalDateTime startOfDay = localDateTime.with(LocalTime.MIN);
return Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
}
/**
* 获得某天最大时间 2018-01-01 23:59:59
*
* @param date
* @return
*/
public static Date getMaxTimeOfDay(Date date) {
if (date == null) {
return null;
}
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()),
ZoneId.systemDefault());
LocalDateTime endOfDay = localDateTime.with(LocalTime.MAX);
return Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
}
/**
* 判断两个时间段的交集
*
* @param leftStartDate
* @param leftEndDate
* @param rightStartDate
* @param rightEndDate
* @return
* @author guos
* @date 2019/7/16 14:57
**/
public static boolean isDateCross(Date leftStartDate, Date leftEndDate, Date rightStartDate, Date rightEndDate) {
return
((leftStartDate.getTime() >= rightStartDate.getTime())
&& leftStartDate.getTime() < rightEndDate.getTime())
||
((leftStartDate.getTime() > rightStartDate.getTime())
&& leftStartDate.getTime() <= rightEndDate.getTime())
||
((rightStartDate.getTime() >= leftStartDate.getTime())
&& rightStartDate.getTime() < leftEndDate.getTime())
||
((rightStartDate.getTime() > leftStartDate.getTime())
&& rightStartDate.getTime() <= leftEndDate.getTime());
}
/**
* 获取本月第一天
* @return
*/
public static Date getMindate(){
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
return calendar.getTime();
}
/**
* 获取本月最后一天
* @return
*/
public static Date getMaxdate(){
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
return calendar.getTime();
}
/**
* 获取当月开始时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getMonthStartTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance();// 获取当前日期
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
calendar.add(Calendar.YEAR, 0);
calendar.add(Calendar.MONTH, 0);
calendar.set(Calendar.DAY_OF_MONTH, 1);// 设置为1号,当前日期既为本月第一天
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTimeInMillis();
}
/**
* 获取当月的结束时间戳
*
* @param timeStamp 毫秒级时间戳
* @param timeZone 如 GMT+8:00
* @return
*/
public static Long getMonthEndTime(Long timeStamp, String timeZone) {
Calendar calendar = Calendar.getInstance();// 获取当前日期
calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
calendar.setTimeInMillis(timeStamp);
calendar.add(Calendar.YEAR, 0);
calendar.add(Calendar.MONTH, 0);
calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));// 获取当前月最后一天
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
calendar.set(Calendar.MILLISECOND, 999);
return calendar.getTimeInMillis();
}
public static void main(String[] a){
System.out.println("当天时间3天后的时间:"+DateUtils.getExpireDate(new Date(),3));
Long nowTime = new Date().getTime();
Long monthStartTime = DateUtils.getMonthStartTime(nowTime,"GMT+8:00");
System.out.println("传入时间当月的开始时间monthStartTime:"+monthStartTime);
Long monthEndTime = DateUtils.getMonthEndTime(nowTime,"GMT+8:00");
System.out.println("传入时间当月的结束时间monthEndTime:"+monthEndTime);
String monthStartTimeStr = DateUtils.formatDate(new Date(monthStartTime),1);
System.out.println("传入时间当月的开始时间monthStartTimeStr:"+monthStartTimeStr);
String monthEndTimeStr = DateUtils.formatDate(new Date(monthEndTime),12);
System.out.println("传入时间当月的结束时间monthEndTimeStr:"+monthEndTimeStr);
Date minDate = DateUtils.getMinTimeOfDay(new Date());
System.out.println("传入时间当天的最小时间minDate:"+minDate);
Date maxDate = DateUtils.getMaxTimeOfDay(new Date());
System.out.println("传入时间当天的最大时间maxDate:"+maxDate);
System.out.println("距离当天24点剩余秒数:"+DateUtils.getRemainSecondsOneDay(new Date()));
}
}
执行结果：
当天时间3天后的时间:Mon Jan 20 15:37:38 CST 2020
传入时间当月的开始时间monthStartTime:1577808000000
传入时间当月的结束时间monthEndTime:1580486399999
传入时间当月的开始时间monthStartTimeStr:2020-01-01 00:00:00
传入时间当月的结束时间monthEndTimeStr:20200131235959
传入时间当天的最小时间minDate:Fri Jan 17 00:00:00 CST 2020
传入时间当天的最大时间maxDate:Fri Jan 17 23:59:59 CST 2020
距离当天24点剩余秒数:30141
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