Date工具类

本文章是个人总结实际工作中常用到的Date工具类主要包含Java-jdk8以下版本的Date相关使用方法可以方便的在工作中灵活的应用在个人工作期间频繁使用这些时间的格式转换以及时间的运算(加、减)时间的比较时间的范围获取等等在这里把时间相关的具体方法展现出来供大家使用参考方便大家在工作中更加提升效率

Date工具类方法

Date日期对【秒】【分钟】【小时】【天】【周】【月】【年】进行加()/减(-)方法

获取日期时间对象

Date();System.out.println(****************Date转String方法****************);System.out.println(formatDateYYYY(date)

formatDateYYYY(date));System.out.println(formatDateYYYY2(date)

formatDateYYYY2(date));System.out.println(formatDateMM(date)

formatDateMM(date));System.out.println(formatDateMM2(date)

formatDateMM2(date));System.out.println(formatDateDD(date)

formatDateDD(date));System.out.println(formatDateDD2(date)

formatDateDD2(date));System.out.println(formatDateYYYYMM(date)

formatDateYYYYMM(date));System.out.println(formatDateYYYYMM2(date)

formatDateYYYYMM2(date));System.out.println(formatDateYYYYMM3(date)

formatDateYYYYMM3(date));System.out.println(formatDateYYYYMM4(date)

formatDateYYYYMM4(date));System.out.println(formatDateYYYYMM5(date)

formatDateYYYYMM5(date));System.out.println(formatDateMMDD(date)

formatDateMMDD(date));System.out.println(formatDateMMDD2(date)

formatDateMMDD2(date));System.out.println(formatDateMMDD3(date)

formatDateMMDD3(date));System.out.println(formatDateMMDD4(date)

formatDateMMDD4(date));System.out.println(formatDateMMDD5(date)

formatDateMMDD5(date));System.out.println(formatDate(date)

formatDate(date));System.out.println(formatDate2(date)

formatDate2(date));System.out.println(formatDate3(date)

formatDate3(date));System.out.println(formatDate4(date)

formatDate4(date));System.out.println(formatDate5(date)

formatDate5(date));System.out.println(****************DateTime转String方法****************);System.out.println(formatTimeHH(date)

formatTimeHH(date));System.out.println(formatTimeHh(date)

formatTimeHh(date));System.out.println(formatTimeHH2(date)

formatTimeHH2(date));System.out.println(formatTimeHh2(date)

formatTimeHh2(date));System.out.println(formatTimeMM(date)

formatTimeMM(date));System.out.println(formatTimeMM2(date)

formatTimeMM2(date));System.out.println(formatTimeSS(date)

formatTimeSS(date));System.out.println(formatTimeSS2(date)

formatTimeSS2(date));System.out.println(formatTimeHHMM(date)

formatTimeHHMM(date));System.out.println(formatTimeHhMM(date)

formatTimeHhMM(date));System.out.println(formatTimeMMSS(date)

formatTimeMMSS(date));System.out.println(formatTimeHHMMSS(date)

formatTimeHHMMSS(date));System.out.println(formatTimeHhMMSS(date)

formatTimeHhMMSS(date));System.out.println(formatDateTime(date)

formatDateTime(date));System.out.println(formatDateTime2(date)

formatDateTime2(date));System.out.println(formatDateTime3(date)

formatDateTime3(date));System.out.println(formatDateTime4(date)

formatDateTime4(date));System.out.println(formatDateTime5(date)

formatDateTime5(date));System.out.println(formatDateTime6(date)

formatDateTime6(date));System.out.println(formatDateTime7(date)

formatDateTime7(date));System.out.println(formatDateTime8(date)

formatDateTime8(date));System.out.println(formatDateTimeH(date)

formatDateTimeH(date));System.out.println(formatDateTimeH2(date)

formatDateTimeH2(date));System.out.println(formatDateTimeH3(date)

formatDateTimeH3(date));System.out.println(formatDateTimeH4(date)

formatDateTimeH4(date));System.out.println(formatDateTimeH5(date)

formatDateTimeH5(date));System.out.println(formatDateTimeH6(date)

formatDateTimeH6(date));System.out.println(formatDateTimeH7(date)

formatDateTimeH7(date));System.out.println(formatDateTimeH8(date)

formatDateTimeH8(date));System.out.println(formatDateTimeSSS(date)

formatDateTimeSSS(date));System.out.println(formatDateTimeSSS2(date)

formatDateTimeSSS2(date));System.out.println(formatDateTimeSSS3(date)

formatDateTimeSSS3(date));System.out.println(formatDateTimeSSS4(date)

formatDateTimeSSS4(date));System.out.println(formatDateTimeSSS5(date)

formatDateTimeSSS5(date));System.out.println(formatDateTimeHSSS(date)

formatDateTimeHSSS(date));System.out.println(formatDateTimeHSSS2(date)

formatDateTimeHSSS2(date));System.out.println(formatDateTimeHSSS3(date)

formatDateTimeHSSS3(date));System.out.println(formatDateTimeHSSS4(date)

formatDateTimeHSSS4(date));System.out.println(formatDateTimeHSSS5(date)

formatDateTimeHSSS5(date));System.out.println(****************Date获取时间戳方法****************);System.out.println(getNowTimestamp()

getNowTimestamp());System.out.println(getDateTimestamp(date)

getDateTimestamp(date));System.out.println(****************String类型日期获取时间戳方法****************);System.out.println(getDateTimestampByYYYYMMDD(\2024-09-09\)

getDateTimestampByYYYYMMDD(2024-09-09));System.out.println(getDateTimestampByYYYYMMDDHHMMSS(\2024-09-09

14:50:00\)

getDateTimestampByYYYYMMDDHHMMSS(2024-09-09

14:50:00));System.out.println(******Date日期对【秒】【分钟】【小时】【天】【周】【月】【年】进行加()/减(-)方法*********);System.out.println(addDateSeconds(date,

addDateSeconds(date,

0));System.out.println(addDateSeconds(date,

addDateSeconds(date,

1));System.out.println(addDateSeconds(date,

-2)

-2));System.out.println(addDateMinutes(date,0)

addDateMinutes(date,

0));System.out.println(addDateMinutes(date,1)

addDateMinutes(date,

1));System.out.println(addDateMinutes(date,-2)

addDateMinutes(date,

-2));System.out.println(addDateHours(date,

addDateHours(date,

0));System.out.println(addDateHours(date,

addDateHours(date,

1));System.out.println(addDateHours(date,

-2)

-2));System.out.println(addDateDays(date,0)

addDateDays(date,

0));System.out.println(addDateDays(date,1)

addDateDays(date,

1));System.out.println(addDateDays(date,

-2)

-2));System.out.println(addDateWeeks(date,0)

addDateWeeks(date,

0));System.out.println(addDateWeeks(date,1)

addDateWeeks(date,

1));System.out.println(addDateMonths(date,

addDateMonths(date,

1));System.out.println(addDateMonths(date,

-2)

-2));System.out.println(addDateYears(date,

addDateYears(date,

0));System.out.println(addDateYears(date,

addDateYears(date,

1));System.out.println(addDateYears(date,

-2)

-2));System.out.println(******Date日期比较方法*********);Date

date1

Date();System.out.println(compareEqualDateYYYY(date,date1)

date1));System.out.println(compareEqualDateYYYY(date,date2)

date2));System.out.println(compareEqualDateYYYY(date1,date2)

date2));System.out.println(compareEqualDateYYYYJava8(date,date1)

compareEqualDateYYYYJava8(date,

date1));System.out.println(compareEqualDateYYYYJava8(date,date2)

compareEqualDateYYYYJava8(date,

date2));System.out.println(compareEqualDateYYYYJava8(date1,date2)

compareEqualDateYYYYJava8(date1,

date2));System.out.println(compareEqualDateYYYYMM(date,date1)

date1));System.out.println(compareEqualDateYYYYMM(date,date2)

date2));System.out.println(compareEqualDateYYYYMM(date1,date2)

date2));System.out.println(compareEqualDateYYYYMMJava8(date,date1)

compareEqualDateYYYYMMJava8(date,

date1));System.out.println(compareEqualDateYYYYMMJava8(date,date2)

compareEqualDateYYYYMMJava8(date,

date2));System.out.println(compareEqualDateYYYYMMJava8(date1,date2)

compareEqualDateYYYYMMJava8(date1,

date2));System.out.println(compareEqualDateYYYYMMDD(date,date1)

date1));System.out.println(compareEqualDateYYYYMMDD(date,date2)

date2));System.out.println(compareEqualDateYYYYMMDD(date1,date2)

compareEqualDateYYYYMMDD(date1,

date2));System.out.println(compareEqualDateYYYYMMDDJava8(date,date1)

compareEqualDateYYYYMMDDJava8(date,

date1));System.out.println(compareEqualDateYYYYMMDDJava8(date,date2)

compareEqualDateYYYYMMDDJava8(date,

date2));System.out.println(compareEqualDateYYYYMMDDJava8(date1,date2)

compareEqualDateYYYYMMDDJava8(date1,

date2));System.out.println(compareEqualDateYYYYMMDDHHMMSS(date,date1)

compareEqualDateYYYYMMDDHHMMSS(date,

date1));System.out.println(compareEqualDateYYYYMMDDHHMMSS(date,date2)

compareEqualDateYYYYMMDDHHMMSS(date,

date2));System.out.println(compareEqualDateYYYYMMDDHHMMSS(date1,date2)

compareEqualDateYYYYMMDDHHMMSS(date1,

date2));System.out.println(compareEqualDateYYYYMMDDHHMMSSJava8(date,date1)

compareEqualDateYYYYMMDDHHMMSSJava8(date,

date1));System.out.println(compareEqualDateYYYYMMDDHHMMSSJava8(date,date2)

compareEqualDateYYYYMMDDHHMMSSJava8(date,

date2));System.out.println(compareEqualDateYYYYMMDDHHMMSSJava8(date1,date2)

compareEqualDateYYYYMMDDHHMMSSJava8(date1,

date2));//

Calendar.getInstance();Calendar

calendar2

设置时间这里仅为示例您可以根据需要设置实际时间calendar1.set(2023,

Calendar.OCTOBER,

(isTimeDifferenceMoreThanOrEqual30Minutes(date3,

date4))

{System.out.println(时间差大于等于30分钟);}

else

{System.out.println(时间差小于30分钟);}//

根据年份获取所有月份ListString

traverseMonthsOfYear(2024);System.out.println(traverseMonthsOfYear

);traverseMonthsOfYear.forEach(System.out::println);}

Date工具类源码

com.google.common.collect.Lists;

import

com.ruoyi.common.core.utils.StringUtils;

import

****************Date转String方法****************/***

Date转

****************String类型日期转Date方法****************/***

String类型日期转Date方法**

****************DateTime转String方法****************/***

Date转

DATE_TIME_h_SSS_PATTERN2);}/***

Date转

DATE_TIME_h_SSS_PATTERN3);}/***

Date转

DATE_TIME_h_SSS_PATTERN4);}/***

Date转

DATE_TIME_h_SSS_PATTERN5);}/***

Date转字符串公共格式化方法**

SimpleDateFormat(pattern);return

df.format(date);}}

****************Date获取时间戳方法****************/***

return

****************String类型日期获取时间戳方法****************/***

param

getDateTimestampByYYYYMMDD(String

date)

getDateTimestamp(parseDate(date));}/***

param

getDateTimestampByYYYYMMDDHHMMSS(String

date)

getDateTimestamp(parseDate(date,

******Date日期对【秒】【分钟】【小时】【天】【周】【月】【年】进行加()/减(-)方法*********/***

param

getDateTime(date).plusSeconds(seconds).toDate()

null;}/***

getDateTime(date).plusMinutes(minutes).toDate()

null;}/***

getDateTime(date).plusHours(hours).toDate()

null;}/***

getDateTime(date).plusDays(days).toDate()

null;}/***

getDateTime(date).plusWeeks(weeks).toDate()

null;}/***

getDateTime(date).plusMonths(months).toDate()

null;}/***

getDateTime(date).plusYears(years).toDate()

null;}/***

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

清除时、分、秒和毫秒cal1.set(Calendar.HOUR_OF_DAY,

0);cal1.set(Calendar.MILLISECOND,

0);cal2.set(Calendar.HOUR_OF_DAY,

0);cal2.set(Calendar.MILLISECOND,

0);//

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDate();LocalDate

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDate();//

现在只比较年return

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

清除时、分、秒和毫秒cal1.set(Calendar.HOUR_OF_DAY,

0);cal1.set(Calendar.MILLISECOND,

0);cal2.set(Calendar.HOUR_OF_DAY,

0);cal2.set(Calendar.MILLISECOND,

0);//

compareEqualDateYYYYMMJava8(Date

date1,

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDate();LocalDate

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDate();//

现在只比较年和月return

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

清除时、分、秒和毫秒cal1.set(Calendar.HOUR_OF_DAY,

0);cal1.set(Calendar.MILLISECOND,

0);cal2.set(Calendar.HOUR_OF_DAY,

0);cal2.set(Calendar.MILLISECOND,

0);//

cal1.get(Calendar.DAY_OF_MONTH)

cal2.get(Calendar.DAY_OF_MONTH);}/***

(Java8)**

compareEqualDateYYYYMMDDJava8(Date

date1,

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDate();LocalDate

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDate();//

现在只比较年和月和日return

compareEqualDateYYYYMMDDHHMMSS(Date

date1,

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

清除毫秒cal1.set(Calendar.MILLISECOND,

0);cal2.set(Calendar.MILLISECOND,

0);//

cal1.get(Calendar.DAY_OF_MONTH)

cal2.get(Calendar.DAY_OF_MONTH)

cal2.get(Calendar.SECOND);}/***

(Java8)**

compareEqualDateYYYYMMDDHHMMSSJava8(Date

date1,

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDateTime();LocalDateTime

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDateTime();//

现在只比较年和月和日、时分秒return

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

提取年份和月份int

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDate();LocalDate

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDate();return

ld2.getYear());}/***

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

提取年份和月份int

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDate();LocalDate

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDate();//

如果年份相同则比较月份return

ld1.getMonthValue(),ld2.getYear()

100

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

提取年份和月份int

cal1.get(Calendar.DAY_OF_MONTH);int

year2

cal2.get(Calendar.DAY_OF_MONTH);//

(year1

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDate();LocalDate

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDate();//

使用LocalDate的compareTo方法来比较年月日return

比较两个时间大小只比较年月日时分秒*

Calendar.getInstance();Calendar

cal2

Calendar.getInstance();cal1.setTime(date1);cal2.setTime(date2);//

清除毫秒部分如果需要的话实际上Calendar的比较默认就会忽略毫秒//

但为了明确表明我们的意图我们可以将毫秒设置为0cal1.set(Calendar.MILLISECOND,

0);cal2.set(Calendar.MILLISECOND,

0);//

compareDateYYYYMMDDHHMMSSJava8(Date

date1,

ZonedDateTime.ofInstant(date1.toInstant(),

ZoneId.systemDefault()).toLocalDateTime();LocalDateTime

ld2

ZonedDateTime.ofInstant(date2.toInstant(),

ZoneId.systemDefault()).toLocalDateTime();//

使用LocalDate的compareTo方法来比较年月日return

param

如果时间差大于等于30分钟则返回true否则返回false*/public

static

isTimeDifferenceMoreThanOrEqual30Minutes(Date

date1,

如果时间差大于等于30分钟则返回true否则返回false*/public

static

isTimeDifferenceMoreThanOrEqual30Minutes(Date

date1,

Calendar.getInstance();calendar.set(year,

Calendar.JANUARY,

月份是从0开始的所以要加1months.add(String.valueOf(month));//

移动到下一个月calendar.add(Calendar.MONTH,

1);}return

Calendar.getInstance();calendar.set(year,

month

calendar.get(Calendar.WEEK_OF_YEAR);weeks.add(String.valueOf(weekOfYear));//

移动到下一天calendar.add(Calendar.WEEK_OF_MONTH,

1);//

(calendar.get(Calendar.WEEK_OF_MONTH)

month

Lists.newArrayList();}ListString

days

Calendar.getInstance();calendar.set(year,

month

calendar.get(Calendar.DAY_OF_MONTH);days.add(String.valueOf(day));//

移动到下一天calendar.add(Calendar.DAY_OF_MONTH,

1);}return

Lists.newArrayList();}ListString

days

Calendar.getInstance();startDate.set(startYear,

startMonth

注意月份是从0开始的所以12月是Calendar.DECEMBERCalendar

endDate

Calendar.getInstance();endDate.set(endYear,

endMonth

打印日期使用SimpleDateFormat来格式化日期输出//

这里简单使用toString()展示实际使用中可以根据需要格式化int

year

startDate.get(Calendar.YEAR);int

month

startDate.get(Calendar.MONTH);int

day

startDate.get(Calendar.DAY_OF_MONTH);days.add(((month

(month

将startDate向前推进一天startDate.add(Calendar.DAY_OF_MONTH,

1);}return

Lists.newArrayList();}ListString

hours

设置Calendar实例为某一天例如2023年1月1日Calendar

calendar

Calendar.getInstance();calendar.set(year,

month

curCalendar.get(Calendar.DAY_OF_MONTH);//

curHour

curCalendar.get(Calendar.HOUR_OF_DAY);//

(int

设置小时calendar.set(Calendar.HOUR_OF_DAY,

hour);//

注意如果你想要包含分钟和秒可以保持它们为当前值或显式设置为0calendar.set(Calendar.MINUTE,

0);calendar.set(Calendar.SECOND,

0);calendar.set(Calendar.MILLISECOND,

0);int

calendar.get(Calendar.DAY_OF_MONTH);int

hourOfDay

calendar.get(Calendar.HOUR_OF_DAY);hours.add((hourOfDay

hourOfDay