APScheduler学习详解

  1. 安装
    pip install apscheduler

  2. 源码安装
    python setup.py install

  3. APScheduler 四种组成
    触发器,作业存储,执行器,调度器

  4. 添加作业
    add_job()

    通过add_job()添加
    import time
    from apscheduler.schedulers.blocking import BlockingScheduler
     
    def my_job():
        print time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
     
    sched = BlockingScheduler()
    sched.add_job(my_job, 'interval', seconds=5)
    sched.start()
    
    
    通过scheduler_job()修饰器
    import time
    from apscheduler.schedulers.blocking import BlockingScheduler
     
    sched = BlockingScheduler()
     
    @sched.scheduled_job('interval', seconds=5)
    def my_job():
        print time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
     
    sched.start()
    
  5. 移除作业

    job = scheduler.add_job(myfunc, 'interval', minutes=2)
    job.remove()
    #如果有多个任务序列的话可以给每个任务设置ID号,可以根据ID号选择清除对象,且remove放到start前才有效
    sched.add_job(myfunc, 'interval', minutes=2, id='my_job_id')
    sched.remove_job('my_job_id')
    
  6. 暂停和恢复作业

    暂停作业
    apsched.job.Job.pause()
    apsched.schedulers.base.BaseScheduler.pause_job()
    恢复作业:
    apsched.job.Job.resume()
    apsched.schedulers.base.BaseScheduler.resume_job(
    
  7. 获得job 列表

    job = sched.add_job(my_job, 'interval', seconds=2 ,id='123')
    print sched.get_job(job_id='123')
    print sched.get_jobs()
    
  8. 关闭调度器

    sched.shutdown()
    sched.shutdown(wait=False)
    
  9. crom定时调度

    (int|str) 表示参数既可以是int类型,也可以是str类型
    (datetime | str) 表示参数既可以是datetime类型,也可以是str类型
     
    year (int|str) – 4-digit year -(表示四位数的年份,如2008年)
    month (int|str) – month (1-12) -(表示取值范围为1-12月)
    day (int|str) – day of the (1-31) -(表示取值范围为1-31日)
    week (int|str) – ISO week (1-53) -(格里历2006年12月31日可以写成2006年-W52-7(扩展形式)或2006W527(紧凑形式))
    day_of_week (int|str) – number or name of weekday (0-6 or mon,tue,wed,thu,fri,sat,sun) - (表示一周中的第几天,既可以用0-6表示也可以用其英语缩写表示)
    hour (int|str) – hour (0-23) - (表示取值范围为0-23时)
    minute (int|str) – minute (0-59) - (表示取值范围为0-59分)
    second (int|str) – second (0-59) - (表示取值范围为0-59秒)
    start_date (datetime|str) – earliest possible date/time to trigger on (inclusive) - (表示开始时间)
    end_date (datetime|str) – latest possible date/time to trigger on (inclusive) - (表示结束时间)
    timezone (datetime.tzinfo|str) – time zone to use for the date/time calculations (defaults to scheduler timezone) -(表示时区取值
    

列子:

#表示2017年3月22日17时19分07秒执行该程序
sched.add_job(my_job, 'cron', year=2017,month = 03,day = 22,hour = 17,minute = 19,second = 07)
 
#表示任务在6,7,8,11,12月份的第三个星期五的00:00,01:00,02:00,03:00 执行该程序
sched.add_job(my_job, 'cron', month='6-8,11-12', day='3rd fri', hour='0-3')
 
#表示从星期一到星期五5:30(AM)直到2014-05-30 00:00:00
sched.add_job(my_job(), 'cron', day_of_week='mon-fri', hour=5, minute=30,end_date='2014-05-30')
 
#表示每5秒执行该程序一次,相当于interval 间隔调度中seconds = 5
sched.add_job(my_job, 'cron',second = '*/5')
  1. interval间隔调度

    weeks (int) – number of weeks to wait
    days (int) – number of days to wait
    hours (int) – number of hours to wait
    minutes (int) – number of minutes to wait
    seconds (int) – number of seconds to wait
    start_date (datetime|str) – starting point for the interval calculation
    end_date (datetime|str) – latest possible date/time to trigger on
    timezone (datetime.tzinfo|str) – time zone to use for the date/time calculations
    

    例子:

    #表示每隔3天17时19分07秒执行一次任务
    sched.add_job(my_job, 'interval',days  = 03,hours = 17,minutes = 19,seconds = 07)
    
  2. date定时调度

    run_date (datetime|str) – the date/time to run the job at  -(任务开始的时间)
    timezone (datetime.tzinfo|str) – time zone for run_date if it doesn’t have one already
    

    列子:

    # The job will be executed on November 6th, 2009
    sched.add_job(my_job, 'date', run_date=date(2009, 11, 6), args=['text'])
    # The job will be executed on November 6th, 2009 at 16:30:05
    sched.add_job(my_job, 'date', run_date=datetime(2009, 11, 6, 16, 30, 5), args=['text'])
    

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