xyz.noark.core.util

类 DateUtils

java.lang.Object

xyz.noark.core.util.DateUtils

public class DateUtils
extends java.lang.Object

时间相关操作工具类.

从以下版本开始:

3.0

作者:

小流氓(176543888@qq.com)

构造器概要

构造器

构造器和说明
DateUtils()

方法概要

限定符和类型	方法和说明
static java.util.Date	addDays(java.util.Date date, int amount) Adds a number of days to a date returning a new object.
static java.util.Date	addHours(java.util.Date date, int amount) Adds a number of hours to a date returning a new object.
static java.util.Date	addMilliseconds(java.util.Date date, int amount) Adds a number of milliseconds to a date returning a new object.
static java.util.Date	addMinutes(java.util.Date date, int amount) Adds a number of minutes to a date returning a new object.
static java.util.Date	addMonths(java.util.Date date, int amount) Adds a number of months to a date returning a new object.
static java.util.Date	addSeconds(java.util.Date date, int amount) Adds a number of seconds to a date returning a new object.
static java.util.Date	addWeeks(java.util.Date date, int amount) Adds a number of weeks to a date returning a new object.
static java.util.Date	addYears(java.util.Date date, int amount) Adds a number of years to a date returning a new object.
static long	diffSeconds(java.util.Date date1, java.util.Date date2) 计算两个Date对象之间相差多少秒.
static boolean	isSameDay(java.util.Calendar cal1, java.util.Calendar cal2) Checks if two calendar objects are on the same day ignoring time.
static boolean	isSameDay(java.util.Date date1, java.util.Date date2) 判断两个日期时间是否是同一天 。
static boolean	isSameMonth(java.util.Calendar cal1, java.util.Calendar cal2) 判定两个日期是否为同年同月份
static boolean	isSameMonth(java.util.Date date1, java.util.Date date2) 判断两个日期时间是否是同年同月份
static boolean	isSameWeek(java.util.Calendar cal1, java.util.Calendar cal2) 判定两个日期是否为同周
static boolean	isSameWeek(java.util.Date date1, java.util.Date date2) 判断两个日期时间是否是同周
static long	toSeconds(java.util.Date date) 将Date对象转化为秒数.

从类继承的方法 java.lang.Object

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

构造器详细资料

DateUtils

public DateUtils()

方法详细资料

isSameDay

public static boolean isSameDay(java.util.Date date1,
                                java.util.Date date2)

判断两个日期时间是否是同一天 。

参数:

date1 - 第一个日期

date2 - 第二个日期

返回:

如果是同一天返回true,否则返回false

isSameDay

public static boolean isSameDay(java.util.Calendar cal1,
                                java.util.Calendar cal2)

Checks if two calendar objects are on the same day ignoring time.

28 Mar 2002 13:45 and 28 Mar 2002 06:01 would return true. 28 Mar 2002 13:45 and 12 Mar 2002 13:45 would return false.

参数:

cal1 - the first calendar, not altered, not null

cal2 - the second calendar, not altered, not null

返回:

true if they represent the same day

抛出:

java.lang.IllegalArgumentException - if either calendar is null

isSameWeek

public static boolean isSameWeek(java.util.Date date1,
                                 java.util.Date date2)

判断两个日期时间是否是同周

参数:

date1 - 第一个日期

date2 - 第二个日期

返回:

如果是同周返回true,否则返回false

isSameWeek

public static boolean isSameWeek(java.util.Calendar cal1,
                                 java.util.Calendar cal2)

判定两个日期是否为同周

参数:

cal1 - 第一个日期

cal2 - 第二个日期

返回:

如果是同周返回true,否则返回false

isSameMonth

public static boolean isSameMonth(java.util.Date date1,
                                  java.util.Date date2)

判断两个日期时间是否是同年同月份

参数:

date1 - 第一个日期

date2 - 第二个日期

返回:

如果是同一个月份返回true,否则返回false

isSameMonth

public static boolean isSameMonth(java.util.Calendar cal1,
                                  java.util.Calendar cal2)

判定两个日期是否为同年同月份

参数:

cal1 - 第一个日期

cal2 - 第二个日期

返回:

如果是同一个月份返回true,否则返回false

addYears

public static java.util.Date addYears(java.util.Date date,
                                      int amount)

Adds a number of years to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

addMonths

public static java.util.Date addMonths(java.util.Date date,
                                       int amount)

Adds a number of months to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

addWeeks

public static java.util.Date addWeeks(java.util.Date date,
                                      int amount)

Adds a number of weeks to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

addDays

public static java.util.Date addDays(java.util.Date date,
                                     int amount)

Adds a number of days to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

addHours

public static java.util.Date addHours(java.util.Date date,
                                      int amount)

Adds a number of hours to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

addMinutes

public static java.util.Date addMinutes(java.util.Date date,
                                        int amount)

Adds a number of minutes to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

addSeconds

public static java.util.Date addSeconds(java.util.Date date,
                                        int amount)

Adds a number of seconds to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

addMilliseconds

public static java.util.Date addMilliseconds(java.util.Date date,
                                             int amount)

Adds a number of milliseconds to a date returning a new object. The original Date is unchanged.

参数:

date - the date, not null

amount - the amount to add, may be negative

返回:

the new Date with the amount added

抛出:

java.lang.IllegalArgumentException - if the date is null

toSeconds

public static long toSeconds(java.util.Date date)

将Date对象转化为秒数.

为了代码里不要到处出现Date.getTime() / 1000的情况

参数:

date - Date日期

返回:

返回这个日期所对应的秒数

diffSeconds

public static long diffSeconds(java.util.Date date1,
                               java.util.Date date2)

计算两个Date对象之间相差多少秒.

参数:

date1 - 时间一

date2 - 时间二

返回:

秒数差，如果时间2大于时间1，有可能会是负值噢.