Package com.xxl.tool.core

Class DateTool

java.lang.Object

com.xxl.tool.core.DateTool

public class DateTool
extends Object

date util

Author:

xuxueli 2018-08-19 01:24:11

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DATE	Such as "2020-12-28"
static final String	DATE_TIME	Such as "2020-12-28 10:00:00"
static final long	MILLIS_PER_DAY	millisecond per hour
static final long	MILLIS_PER_HOUR	millisecond per minute
static final long	MILLIS_PER_MINUTE	millisecond per minute
static final long	MILLIS_PER_MONTH_30	millisecond per month (30 days)
static final long	MILLIS_PER_MS	one millisecond
static final long	MILLIS_PER_SECOND	millisecond per second
static final long	MILLIS_PER_WEEK	millisecond per week
static final long	MILLIS_PER_YEAR_365	millisecond per year (365 days)
static final String	TIME	Such as "10:00:00"
static final String	TIME_WITHOUT_SECOND	Such as "10:00"

Constructor Summary

Constructors

Constructor	Description
DateTool()

Method Summary

Modifier and Type	Method	Description
static Date	addDays(Date date, long amount)	add Days
static Date	addHours(Date date, long amount)	add Hours
static Date	addMilliseconds(Date date, long amount)	add Milliseconds
static Date	addMinutes(Date date, long amount)	add Minutes
static Date	addMonths(Date date, long amount)	add Months
static Date	addSeconds(Date date, long amount)	add Seconds
static Date	addWeeks(Date date, long amount)	add Weeks
static Date	addYears(Date date, long amount)	add Years
static long	betweenDay(Date beginDate, Date endDate)	between day
static long	betweenHour(Date beginDate, Date endDate)	between hour
static long	betweenMinute(Date beginDate, Date endDate)	between minute
static long	betweenMonth(Date beginDate, Date endDate)	between month
static long	betweenSecond(Date beginDate, Date endDate)	between second
static long	betweenWeek(Date beginDate, Date endDate)	between week
static long	betweenYear(Date beginDate, Date endDate)	between year
static String	format(Date date, String pattern)	format Date to String
static String	formatDate(Date date)	format date；like "yyyy-MM-dd"
static String	formatDateTime(Date date)	format date；like "yyyy-MM-dd HH:mm:s"
static String	formatTemporal(Temporal temporal, String pattern)	format temporal to String
static boolean	isSameDay(Calendar cal1, Calendar cal2)	is same day
static Date	parse(String dateString, String pattern)	parse String to Date, with time
static Date	parseDate(String dateString)	parse String to Date, like "yyyy-MM-dd"
static Date	parseDateTime(String dateString)	parse String to DateTime, like "yyyy-MM-dd HH:mm:s"
static LocalDate	parseLocalDate(String dateString, String pattern)	parse String to LocalDate
static LocalDateTime	parseLocalDateTime(String dateString, String pattern)	parse String to LocalDateTime
static LocalTime	parseLocalTime(String dateString, String pattern)	parse String to LocalTime
static YearMonth	parseYearMonth(String dateString, String pattern)	parse String to YearMonth
static Date	set(Date date, int calendarField, int amount)	Set the specified field to a date, returning a new object.
static Date	setDays(Date date, int amount)	set day-of-month to a date, returning a new object
static Date	setHours(Date date, int amount)	set hour-of-day to a date, returning a new object
static Date	setMilliseconds(Date date, int amount)	set milliseconds to a date, returning a new object
static Date	setMinutes(Date date, int amount)	set minutes to a date, returning a new object
static Date	setMonths(Date date, int amount)	set month to a date, returning a new object
static Date	setSeconds(Date date, int amount)	set seconds to a date, returning a new object
static Date	setStartOfDay(Date date)	set start of day to a date, like "yyyy-MM-dd 00:00:00"
static Date	setYears(Date date, int amount)	set year to a date, returning a new object

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DATE_TIME

public static final String DATE_TIME

Such as "2020-12-28 10:00:00"

See Also:

• Constant Field Values

DATE

public static final String DATE

Such as "2020-12-28"

See Also:

• Constant Field Values

TIME

public static final String TIME

Such as "10:00:00"

See Also:

• Constant Field Values

TIME_WITHOUT_SECOND

public static final String TIME_WITHOUT_SECOND

Such as "10:00"

See Also:

• Constant Field Values

MILLIS_PER_MS

public static final long MILLIS_PER_MS

one millisecond

See Also:

• Constant Field Values

MILLIS_PER_SECOND

public static final long MILLIS_PER_SECOND

millisecond per second

See Also:

• Constant Field Values

MILLIS_PER_MINUTE

public static final long MILLIS_PER_MINUTE

millisecond per minute

See Also:

• Constant Field Values

MILLIS_PER_HOUR

public static final long MILLIS_PER_HOUR

millisecond per minute

See Also:

• Constant Field Values

MILLIS_PER_DAY

public static final long MILLIS_PER_DAY

millisecond per hour

See Also:

• Constant Field Values

MILLIS_PER_WEEK

public static final long MILLIS_PER_WEEK

millisecond per week

See Also:

• Constant Field Values

MILLIS_PER_MONTH_30

public static final long MILLIS_PER_MONTH_30

millisecond per month (30 days)

See Also:

• Constant Field Values

MILLIS_PER_YEAR_365

public static final long MILLIS_PER_YEAR_365

millisecond per year (365 days)

See Also:

• Constant Field Values

Constructor Details

DateTool

public DateTool()

Method Details

parse

public static Date parse(String dateString,
 String pattern)

parse String to Date, with time

Parameters:

dateString -

pattern -

Returns:

date

parseDateTime

public static Date parseDateTime(String dateString)

parse String to DateTime, like "yyyy-MM-dd HH:mm:s"

Parameters:

dateString -

Returns:

parseDate

public static Date parseDate(String dateString)

parse String to Date, like "yyyy-MM-dd"

Parameters:

dateString -

Returns:

format

public static String format(Date date,
 String pattern)

format Date to String

Parameters:

date - date

pattern - pattern

Returns:

date string

formatDate

public static String formatDate(Date date)

format date；like "yyyy-MM-dd"

Parameters:

date -

Returns:

Throws:

ParseException

formatDateTime

public static String formatDateTime(Date date)

format date；like "yyyy-MM-dd HH:mm:s"

Parameters:

date -

Returns:

Throws:

ParseException

parseLocalDateTime

public static LocalDateTime parseLocalDateTime(String dateString,
 String pattern)

parse String to LocalDateTime

Parameters:

dateString -

pattern -

Returns:

parseLocalDate

public static LocalDate parseLocalDate(String dateString,
 String pattern)

parse String to LocalDate

Parameters:

dateString -

pattern -

Returns:

parseLocalTime

public static LocalTime parseLocalTime(String dateString,
 String pattern)

parse String to LocalTime

Parameters:

dateString -

pattern -

Returns:

parseYearMonth

public static YearMonth parseYearMonth(String dateString,
 String pattern)

parse String to YearMonth

Parameters:

dateString -

pattern -

Returns:

formatTemporal

public static String formatTemporal(Temporal temporal,
 String pattern)

format temporal to String

Parameters:

temporal -

pattern -

Returns:

addYears

public static Date addYears(Date date,
 long amount)

add Years

Parameters:

date -

amount -

Returns:

addMonths

public static Date addMonths(Date date,
 long amount)

add Months

Parameters:

date -

amount -

Returns:

addDays

public static Date addDays(Date date,
 long amount)

add Days

Parameters:

date -

amount -

Returns:

addHours

public static Date addHours(Date date,
 long amount)

add Hours

Parameters:

date -

amount -

Returns:

addMinutes

public static Date addMinutes(Date date,
 long amount)

add Minutes

Parameters:

date -

amount -

Returns:

addSeconds

public static Date addSeconds(Date date,
 long amount)

add Seconds

Parameters:

date -

amount -

Returns:

addWeeks

public static Date addWeeks(Date date,
 long amount)

add Weeks

Parameters:

date -

amount -

Returns:

addMilliseconds

public static Date addMilliseconds(Date date,
 long amount)

add Milliseconds

Parameters:

date -

amount -

Returns:

set

public static Date set(Date date,
 int calendarField,
 int amount)

Set the specified field to a date, returning a new object.

Parameters:

date - the original is unchanged,

calendarField - like "Calendar.YEAR"

amount - the amount to set

Returns:

setYears

public static Date setYears(Date date,
 int amount)

set year to a date, returning a new object

Parameters:

date - the original is unchanged,

amount - the amount to set

Returns:

setMonths

public static Date setMonths(Date date,
 int amount)

set month to a date, returning a new object

Parameters:

date - the first month of the year is JANUARY, which is 0;

amount - the amount to set

Returns:

setDays

public static Date setDays(Date date,
 int amount)

set day-of-month to a date, returning a new object

Parameters:

date - the original is unchanged,

amount - the amount to set

Returns:

setHours

public static Date setHours(Date date,
 int amount)

set hour-of-day to a date, returning a new object

Parameters:

date - the original is unchanged,

amount - the amount to set

Returns:

setMinutes

public static Date setMinutes(Date date,
 int amount)

set minutes to a date, returning a new object

Parameters:

date - the original is unchanged,

amount - the amount to set

Returns:

setSeconds

public static Date setSeconds(Date date,
 int amount)

set seconds to a date, returning a new object

Parameters:

date - the original is unchanged,

amount - the amount to set

Returns:

setMilliseconds

public static Date setMilliseconds(Date date,
 int amount)

set milliseconds to a date, returning a new object

Parameters:

date - the original is unchanged,

amount - the amount to set

Returns:

setStartOfDay

public static Date setStartOfDay(Date date)

set start of day to a date, like "yyyy-MM-dd 00:00:00"

Parameters:

date - the original is unchanged,

Returns:

return the start of day, like "yyyy-MM-dd 00:00:00"

betweenYear

public static long betweenYear(Date beginDate,
 Date endDate)

between year

Parameters:

beginDate -

endDate -

Returns:

betweenMonth

public static long betweenMonth(Date beginDate,
 Date endDate)

between month

Parameters:

beginDate -

endDate -

Returns:

betweenDay

public static long betweenDay(Date beginDate,
 Date endDate)

between day

Parameters:

beginDate -

endDate -

Returns:

betweenHour

public static long betweenHour(Date beginDate,
 Date endDate)

between hour

Parameters:

beginDate -

endDate -

Returns:

betweenMinute

public static long betweenMinute(Date beginDate,
 Date endDate)

between minute

Parameters:

beginDate -

endDate -

Returns:

betweenSecond

public static long betweenSecond(Date beginDate,
 Date endDate)

between second

Parameters:

beginDate -

endDate -

Returns:

betweenWeek

public static long betweenWeek(Date beginDate,
 Date endDate)

between week

Parameters:

beginDate -

endDate -

Returns:

isSameDay

public static boolean isSameDay(Calendar cal1,
 Calendar cal2)

is same day

Parameters:

cal1 -

cal2 -

Returns: