最近在研究python调度框架APScheduler使用的路上，那么今天也算个学习笔记吧！
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# coding=utf-8"""Demonstrates how to use the background scheduler to schedule a job that executes on 3 secondintervals."""from datetime import datetimeimport timeimport osfrom apscheduler.schedulers.background import BackgroundSchedulerdef tick(): print('Tick! The time is: %s' % datetime.now())if __name__ == '__main__': scheduler = BackgroundScheduler() scheduler.add_job(tick, 'interval', seconds=3) #间隔3秒钟执行一次 scheduler.start() #这里的调度任务是独立的一个线程 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) try: # This is here to simulate application activity (which keeps the main thread alive). while True: time.sleep(2) #其他任务是独立的线程执行 print('sleep!') except (KeyboardInterrupt, SystemExit): # Not strictly necessary if daemonic mode is enabled but should be done if possible scheduler.shutdown() print('Exit The Job!') |
非阻塞调度，在指定的时间执行一次
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# coding=utf-8"""Demonstrates how to use the background scheduler to schedule a job that executes on 3 secondintervals."""from datetime import datetimeimport timeimport osfrom apscheduler.schedulers.background import BackgroundSchedulerdef tick(): print('Tick! The time is: %s' % datetime.now())if __name__ == '__main__': scheduler = BackgroundScheduler() #scheduler.add_job(tick, 'interval', seconds=3) scheduler.add_job(tick, 'date', run_date='2016-02-14 15:01:05') #在指定的时间，只执行一次 scheduler.start() #这里的调度任务是独立的一个线程 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) try: # This is here to simulate application activity (which keeps the main thread alive). while True: time.sleep(2) #其他任务是独立的线程执行 print('sleep!') except (KeyboardInterrupt, SystemExit): # Not strictly necessary if daemonic mode is enabled but should be done if possible scheduler.shutdown() print('Exit The Job!') |
非阻塞的方式，采用cron的方式执行
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# coding=utf-8"""Demonstrates how to use the background scheduler to schedule a job that executes on 3 secondintervals."""from datetime import datetimeimport timeimport osfrom apscheduler.schedulers.background import BackgroundSchedulerdef tick(): print('Tick! The time is: %s' % datetime.now())if __name__ == '__main__': scheduler = BackgroundScheduler() #scheduler.add_job(tick, 'interval', seconds=3) #scheduler.add_job(tick, 'date', run_date='2016-02-14 15:01:05') scheduler.add_job(tick, 'cron', day_of_week='6', second='*/5') ''' year (int|str) – 4-digit year month (int|str) – month (1-12) day (int|str) – day of the (1-31) week (int|str) – ISO week (1-53) day_of_week (int|str) – number or name of weekday (0-6 or mon,tue,wed,thu,fri,sat,sun) hour (int|str) – hour (0-23) minute (int|str) – minute (0-59) second (int|str) – second (0-59) start_date (datetime|str) – earliest possible date/time to trigger on (inclusive) end_date (datetime|str) – latest possible date/time to trigger on (inclusive) timezone (datetime.tzinfo|str) – time zone to use for the date/time calculations (defaults to scheduler timezone) * any Fire on every value */a any Fire every a values, starting from the minimum a-b any Fire on any value within the a-b range (a must be smaller than b) a-b/c any Fire every c values within the a-b range xth y day Fire on the x -th occurrence of weekday y within the month last x day Fire on the last occurrence of weekday x within the month last day Fire on the last day within the month x,y,z any Fire on any matching expression; can combine any number of any of the above expressions ''' scheduler.start() #这里的调度任务是独立的一个线程 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) try: # This is here to simulate application activity (which keeps the main thread alive). while True: time.sleep(2) #其他任务是独立的线程执行 print('sleep!') except (KeyboardInterrupt, SystemExit): # Not strictly necessary if daemonic mode is enabled but should be done if possible scheduler.shutdown() print('Exit The Job!') |
阻塞的方式，间隔3秒执行一次
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# coding=utf-8"""Demonstrates how to use the background scheduler to schedule a job that executes on 3 secondintervals."""from datetime import datetimeimport osfrom apscheduler.schedulers.blocking import BlockingSchedulerdef tick(): print('Tick! The time is: %s' % datetime.now())if __name__ == '__main__': scheduler = BlockingScheduler() scheduler.add_job(tick, 'interval', seconds=3) print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) try: scheduler.start() #采用的是阻塞的方式，只有一个线程专职做调度的任务 except (KeyboardInterrupt, SystemExit): # Not strictly necessary if daemonic mode is enabled but should be done if possible scheduler.shutdown() print('Exit The Job!') |
采用阻塞的方法，只执行一次
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# coding=utf-8"""Demonstrates how to use the background scheduler to schedule a job that executes on 3 secondintervals."""from datetime import datetimeimport osfrom apscheduler.schedulers.blocking import BlockingSchedulerdef tick(): print('Tick! The time is: %s' % datetime.now())if __name__ == '__main__': scheduler = BlockingScheduler() scheduler.add_job(tick, 'date', run_date='2016-02-14 15:23:05') print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) try: scheduler.start() #采用的是阻塞的方式，只有一个线程专职做调度的任务 except (KeyboardInterrupt, SystemExit): # Not strictly necessary if daemonic mode is enabled but should be done if possible scheduler.shutdown() print('Exit The Job!') |
采用阻塞的方式，使用cron的调度方法
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# coding=utf-8"""Demonstrates how to use the background scheduler to schedule a job that executes on 3 secondintervals."""from datetime import datetimeimport osfrom apscheduler.schedulers.blocking import BlockingSchedulerdef tick(): print('Tick! The time is: %s' % datetime.now())if __name__ == '__main__': scheduler = BlockingScheduler() scheduler.add_job(tick, 'cron', day_of_week='6', second='*/5') ''' year (int|str) – 4-digit year month (int|str) – month (1-12) day (int|str) – day of the (1-31) week (int|str) – ISO week (1-53) day_of_week (int|str) – number or name of weekday (0-6 or mon,tue,wed,thu,fri,sat,sun) hour (int|str) – hour (0-23) minute (int|str) – minute (0-59) second (int|str) – second (0-59) start_date (datetime|str) – earliest possible date/time to trigger on (inclusive) end_date (datetime|str) – latest possible date/time to trigger on (inclusive) timezone (datetime.tzinfo|str) – time zone to use for the date/time calculations (defaults to scheduler timezone) * any Fire on every value */a any Fire every a values, starting from the minimum a-b any Fire on any value within the a-b range (a must be smaller than b) a-b/c any Fire every c values within the a-b range xth y day Fire on the x -th occurrence of weekday y within the month last x day Fire on the last occurrence of weekday x within the month last day Fire on the last day within the month x,y,z any Fire on any matching expression; can combine any number of any of the above expressions ''' print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) try: scheduler.start() #采用的是阻塞的方式，只有一个线程专职做调度的任务 except (KeyboardInterrupt, SystemExit): # Not strictly necessary if daemonic mode is enabled but should be done if possible scheduler.shutdown() print('Exit The Job!') |
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原文链接：http://www.cnblogs.com/hushaojun/p/5189109.html
