Spring cron expression for every after 30 minutes

Question

I have following Spring job to run after every 30 minutes  Please check my cron expression  is that correct       0 0 0     30     Here is a full cron job definition from the related Spring configuration file     lt bean id  autoWeblogPingTrigger  class  org springframework scheduling quartz CronTriggerBean  gt       lt property name  jobDetail  ref  jobDetailForWeblogPing   gt       lt  -- run every 35 minutes -- gt       lt property name  cronExpression  value  0 0 0     30    gt   lt  bean gt

User · Answer

If someone is using  Sceduled this might work for you    Scheduled cron      name-of-the-cron 0 0 30             This worked for me

User · Answer

Graphically  the cron syntax for Quarz is  source     -------------------- second  0 - 59      ----------------- minute  0 - 59         -------------- hour  0 - 23            ----------- day of month  1 - 31               -------- month  1 - 12                  ----- day of week  0 - 6   Sunday 0 or 7                     -- year  optional                                          command to be executed    So if you want to run a command every 30 minutes you can say either of these   0 0 30           0 0 30             You can check crontab expressions using either of these    crontab guru      disclaimer  I am not related to that page at all  only that I find it very useful   This page uses UNIX style of cron that does not have seconds in it  while Spring does as the first field  Cron Expression Generator  amp  Explainer - Quartz     cron formatter  allowing seconds also

User · Answer

lt property name  cronExpression  value  0 0 30            gt

User · Answer

in web app java spring what worked for me  cron  0 0 30            This will trigger on for example 10 00AM then 10 30AM etc      lt  xml version  1 0  encoding  UTF-8   gt   lt beans xmlns  http   www springframework org schema beans         xmlns xsi  http   www w3 org 2001 XMLSchema-instance         xmlns beans  http   www springframework org schema beans         xmlns task  http   www springframework org schema task         xsi schemaLocation       http   www springframework org schema beans      http   www springframework org schema beans spring-beans xsd     http   www springframework org schema task      http   www springframework org schema task spring-task xsd  gt        lt beans profile  cron  gt           lt bean id  executorService  class  java util concurrent Executors  factory-method  newFixedThreadPool  gt               lt beans constructor-arg value  5    gt           lt  bean gt            lt task executor id  threadPoolTaskExecutor  pool-size  5    gt           lt task annotation-driven executor  executorService    gt            lt beans bean id  expireCronJob  class  com cron ExpireCron   gt            lt task scheduler id  serverScheduler  pool-size  5   gt           lt task scheduled-tasks scheduler  serverScheduler  gt               lt task scheduled ref  expireCronJob  method  runTask  cron  0 0 30           gt   lt  -- every thirty minute -- gt           lt  task scheduled-tasks gt        lt  beans gt    lt  beans gt    I dont know why but this is working on my local develop and production  but other changes if i made i have to be careful because it may work local and on develop but not on production

User · Answer

According to the Quartz-Scheduler Tutorial It should be value  quot 0 0 30         quot  The field order of the cronExpression is 1 Seconds 2 Minutes 3 Hours 4 Day-of-Month 5 Month 6 Day-of-Week 7 Year  optional field  Ensure you have at least 6 parameters or you will get an error  year is optional

[java] Spring cron expression for every after 30 minutes

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