python调度框架APScheduler使用详解
1 # coding=utf-8 2 """ 3 Demonstrates how to use the background scheduler to schedule a job that executes on 3 second 4 intervals. 5 """ 6 7 from datetime import datetime 8 import time 9 import os 10 11 from apscheduler.schedulers.background import BackgroundScheduler 12 13 14 def tick(): 15 print('Tick! The time is: %s' % datetime.now()) 16 17 18 if __name__ == '__main__': 19 scheduler = BackgroundScheduler() 20 scheduler.add_job(tick, 'interval', seconds=3) #间隔3秒钟执行一次 21 scheduler.start() #这里的调度任务是独立的一个线程 22 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) 23 24 try: 25 # This is here to simulate application activity (which keeps the main thread alive). 26 while True: 27 time.sleep(2) #其他任务是独立的线程执行 28 print('sleep!') 29 except (KeyboardInterrupt, SystemExit): 30 # Not strictly necessary if daemonic mode is enabled but should be done if possible 31 scheduler.shutdown() 32 print('Exit The Job!')
非阻塞调度，在指定的时间执行一次
1 # coding=utf-8 2 """ 3 Demonstrates how to use the background scheduler to schedule a job that executes on 3 second 4 intervals. 5 """ 6 7 from datetime import datetime 8 import time 9 import os 10 11 from apscheduler.schedulers.background import BackgroundScheduler 12 13 14 def tick(): 15 print('Tick! The time is: %s' % datetime.now()) 16 17 18 if __name__ == '__main__': 19 scheduler = BackgroundScheduler() 20 #scheduler.add_job(tick, 'interval', seconds=3) 21 scheduler.add_job(tick, 'date', run_date='2016-02-14 15:01:05') #在指定的时间，只执行一次 22 scheduler.start() #这里的调度任务是独立的一个线程 23 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) 24 25 try: 26 # This is here to simulate application activity (which keeps the main thread alive). 27 while True: 28 time.sleep(2) #其他任务是独立的线程执行 29 print('sleep!') 30 except (KeyboardInterrupt, SystemExit): 31 # Not strictly necessary if daemonic mode is enabled but should be done if possible 32 scheduler.shutdown() 33 print('Exit The Job!')
非阻塞的方式，采用cron的方式执行
1 # coding=utf-8 2 """ 3 Demonstrates how to use the background scheduler to schedule a job that executes on 3 second 4 intervals. 5 """ 6 7 from datetime import datetime 8 import time 9 import os 10 11 from apscheduler.schedulers.background import BackgroundScheduler 12 13 14 def tick(): 15 print('Tick! The time is: %s' % datetime.now()) 16 17 18 if __name__ == '__main__': 19 scheduler = BackgroundScheduler() 20 #scheduler.add_job(tick, 'interval', seconds=3) 21 #scheduler.add_job(tick, 'date', run_date='2016-02-14 15:01:05') 22 scheduler.add_job(tick, 'cron', day_of_week='6', second='*/5') 23 ''' 24 year (int|str) – 4-digit year 25 month (int|str) – month (1-12) 26 day (int|str) – day of the (1-31) 27 week (int|str) – ISO week (1-53) 28 day_of_week (int|str) – number or name of weekday (0-6 or mon,tue,wed,thu,fri,sat,sun) 29 hour (int|str) – hour (0-23) 30 minute (int|str) – minute (0-59) 31 second (int|str) – second (0-59) 32 33 start_date (datetime|str) – earliest possible date/time to trigger on (inclusive) 34 end_date (datetime|str) – latest possible date/time to trigger on (inclusive) 35 timezone (datetime.tzinfo|str) – time zone to use for the date/time calculations (defaults to scheduler timezone) 36 37 * any Fire on every value 38 */a any Fire every a values, starting from the minimum 39 a-b any Fire on any value within the a-b range (a must be smaller than b) 40 a-b/c any Fire every c values within the a-b range 41 xth y day Fire on the x -th occurrence of weekday y within the month 42 last x day Fire on the last occurrence of weekday x within the month 43 last day Fire on the last day within the month 44 x,y,z any Fire on any matching expression; can combine any number of any of the above expressions 45 ''' 46 scheduler.start() #这里的调度任务是独立的一个线程 47 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) 48 49 try: 50 # This is here to simulate application activity (which keeps the main thread alive). 51 while True: 52 time.sleep(2) #其他任务是独立的线程执行 53 print('sleep!') 54 except (KeyboardInterrupt, SystemExit): 55 # Not strictly necessary if daemonic mode is enabled but should be done if possible 56 scheduler.shutdown() 57 print('Exit The Job!')
阻塞的方式，间隔3秒执行一次
1 # coding=utf-8 2 """ 3 Demonstrates how to use the background scheduler to schedule a job that executes on 3 second 4 intervals. 5 """ 6 7 from datetime import datetime 8 import os 9 10 from apscheduler.schedulers.blocking import BlockingScheduler 11 12 13 def tick(): 14 print('Tick! The time is: %s' % datetime.now()) 15 16 17 if __name__ == '__main__': 18 scheduler = BlockingScheduler() 19 scheduler.add_job(tick, 'interval', seconds=3) 20 21 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) 22 23 try: 24 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 25 except (KeyboardInterrupt, SystemExit): 26 # Not strictly necessary if daemonic mode is enabled but should be done if possible 27 scheduler.shutdown() 28 print('Exit The Job!')
采用阻塞的方法，只执行一次
1 # coding=utf-8 2 """ 3 Demonstrates how to use the background scheduler to schedule a job that executes on 3 second 4 intervals. 5 """ 6 7 from datetime import datetime 8 import os 9 10 from apscheduler.schedulers.blocking import BlockingScheduler 11 12 13 def tick(): 14 print('Tick! The time is: %s' % datetime.now()) 15 16 17 if __name__ == '__main__': 18 scheduler = BlockingScheduler() 19 scheduler.add_job(tick, 'date', run_date='2016-02-14 15:23:05') 20 21 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) 22 23 try: 24 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 25 except (KeyboardInterrupt, SystemExit): 26 # Not strictly necessary if daemonic mode is enabled but should be done if possible 27 scheduler.shutdown() 28 print('Exit The Job!')
采用阻塞的方式，使用cron的调度方法
1 # coding=utf-8 2 """ 3 Demonstrates how to use the background scheduler to schedule a job that executes on 3 second 4 intervals. 5 """ 6 7 from datetime import datetime 8 import os 9 10 from apscheduler.schedulers.blocking import BlockingScheduler 11 12 13 def tick(): 14 print('Tick! The time is: %s' % datetime.now()) 15 16 17 if __name__ == '__main__': 18 scheduler = BlockingScheduler() 19 scheduler.add_job(tick, 'cron', day_of_week='6', second='*/5') 20 ''' 21 year (int|str) – 4-digit year 22 month (int|str) – month (1-12) 23 day (int|str) – day of the (1-31) 24 week (int|str) – ISO week (1-53) 25 day_of_week (int|str) – number or name of weekday (0-6 or mon,tue,wed,thu,fri,sat,sun) 26 hour (int|str) – hour (0-23) 27 minute (int|str) – minute (0-59) 28 second (int|str) – second (0-59) 29 30 start_date (datetime|str) – earliest possible date/time to trigger on (inclusive) 31 end_date (datetime|str) – latest possible date/time to trigger on (inclusive) 32 timezone (datetime.tzinfo|str) – time zone to use for the date/time calculations (defaults to scheduler timezone) 33 34 * any Fire on every value 35 */a any Fire every a values, starting from the minimum 36 a-b any Fire on any value within the a-b range (a must be smaller than b) 37 a-b/c any Fire every c values within the a-b range 38 xth y day Fire on the x -th occurrence of weekday y within the month 39 last x day Fire on the last occurrence of weekday x within the month 40 last day Fire on the last day within the month 41 x,y,z any Fire on any matching expression; can combine any number of any of the above expressions 42 ''' 43 44 print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) 45 46 try: 47 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 48 except (KeyboardInterrupt, SystemExit): 49 # Not strictly necessary if daemonic mode is enabled but should be done if possible 50 scheduler.shutdown() 51 print('Exit The Job!')
