Cron Expressions for Quartz

A cron expression has at least 6 (or possibly 7) time elements that have a space separation.

sequentially seconds (0~59)

Minutes (0~59)

Hours (0~23)

Days (months) (0~31, but you need to consider the number of days of your month)

Month (0~11)

Days (weeks) (1~7 1=sun or Sun,mon,tue,wed,thu,fri,sat)

7. Year (1970-2099)

Each of these elements can be a value (such as 6), a continuous interval (9-12), a time interval (8-18/4) (/= every 4 hours), a list (1,3,5), and a wildcard character. Because the "date in the month" and "date in the week" are mutually exclusive, one of the two elements must be set.

0 0 10,14,16 * *? 10 o'clock in the morning, 2 o'clock in the afternoon, 4 O ' Day
0 0/30 9-17 * *? Every half hour for nine to five working hours
0 0 12? * WED means every Wednesday noon 12 o'clock
"0 0 12 * *?" trigger 12 o'clock noon every day.
"0 15 10?" * * "trigger 10:15 every day"
"0 15 10 * *?" Daily 10:15 Trigger
"0 15 10 * *?" * "10:15 per day" trigger
"0 15 10 * *?" 2005 "2005-year daily 10:15 Trigger
"0 * 14 * *?" triggers every 1 minutes from 2 o'clock in the afternoon to 2:59 daily
"0 0/5 14 * *?" triggers every 5 minutes from 2 o'clock in the afternoon to 2:55 daily
"0 0/5 14,18 * *?" triggers every 5 minutes from 2 o'clock in the afternoon to 2:55 daily and from 6 o'clock in the afternoon to 6:55
"0 0-5 14 * *?" triggers every 1 minutes from 2 o'clock in the afternoon to 2:05 daily
"0 10,44 14?" 3 WED "2:10 and 2:44 triggers in Wednesday of every March
"0 15 10?" * Mon-fri "Monday to Friday 10:15 trigger
"0 15 10 15 *?" 15th 10:15 per month
"0 L *?" 10:15 on the last day of the month
"0 15 10?" * 6L "Last month of Friday 10:15 Trigger
"0 15 10?" * 6L 2002-2005 "2002 to 2005 the last of the monthly Friday 10:15 trigger
"0 15 10?" * 6#3 "Monthly third Friday 10:15 trigger

Some sub-expressions can contain ranges or lists

For example: subexpression ( Day (week)) can be "Mon-fri", "Mon,wed,fri", "Mon-wed,sat"

The "*" character represents all possible values

Therefore, "*" in the sub-expression ( month ) represents the meaning of each month, "*" in the subexpression ( Day (week)) represents every day of the week

The "/" character is used to specify the increment of the numeric value

For example: "0/15" in sub-expressions (minutes) means starting from the No. 0 minute, every 15 minutes

"3/20" in the sub-expression (minutes) means that every 20 minutes (it is the same as "3,23,43") starting from the 3rd minute

“？ "Character is used only for days (months) and days (weeks) of two sub-expressions, indicating that no value is specified

When one of the 2 sub-expressions is assigned a value, in order to avoid a conflict, you need to set the value of another subexpression to "? ”

The "L" character is used only for days (months) and days (weeks) of two sub-expressions, which is the abbreviation for the word "last"

But it has a different meaning in two sub-expressions.

In the day (month) subexpression, "L" represents the last day of the one-month

In the day (week) Self-expression, "L" represents the last day of one weeks, the SAT

If there is something specific before "L", it has other meanings.

For example: "6L" means the 6th day of the month, and "Fril" means the last Friday of the month.

Note: When using the "L" parameter, do not specify a list or range, as this can cause problems

Special characters allowed for field allowed values

秒		0-59		, - * /
分		0-59		, - * /
小时		0-23		, - * /
日期		1-31		, - * ? / L W C
月份		1-12 或者 JAN-DEC		, - * /
星期		1-7 或者 SUN-SAT		, - * ? / L C #
年（可选）		留空, 1970-2099		, - * /

Cron Expressions for Quartz