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Benx Shen's Library tagged cron →  View Popular

Quartz - Quartz 1 - CronTriggers Tutorial

  • Format



    A cron expression is a string comprised of 6 or 7 fields separated by white space. Fields can contain any of the allowed values, along with various combinations of the allowed special characters for that field. The fields are as follows:












































    Field NameMandatory?Allowed ValuesAllowed Special Characters
    SecondsYES0-59, - * /
    MinutesYES0-59, - * /
    HoursYES0-23, - * /
    Day of monthYES1-31, - * ? / L W C
    MonthYES1-12 or JAN-DEC, - * /
    Day of weekYES1-7 or SUN-SAT, - * ? / L C #
    YearNOempty, 1970-2099, - * /


    So cron expressions can be as simple as this: * * * * ? *

    or more complex, like this: 0 0/5 14,18,3-39,52 ? JAN,MAR,SEP MON-FRI 2002-2010

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