关于Flask Schedule

Flask Schedule

Flask-APScheduler

a Flask extension supported for the APScheduler which is a Task scheduling library for Python.

how to use

from flask import Flask
from flask_apscheduler import APScheduler
class Config(object):
    JOBS = [
        {
            'id': 'job1',
            'func': '__main__:job1',
            'args': (1, 2),
            'trigger': 'interval',
            'seconds': 10
        }
    ]

def job1(a, b):
    print(str(a) + ' ' + str(b))


if __name__ == '__main__':
    app = Flask(__name__)
    app.config.from_object(Config())

    scheduler = APScheduler()
    scheduler.init_app(app)
    scheduler.start()
    
    app.run()

APScheduler Job

add job

date 日期触发: 一次性指定日期

• run_date (datetime|str) – 作业的运行日期或时间
• timezone (datetime.tzinfo|str) – 指定时区

# 2016-12-12运行一次job_function
scheduler.add_job(job_function, 'date', run_date=date(2016, 12, 12), args=['text'])
# 2016-12-12 12:00:00运行一次job_function
scheduler.add_job(job_function, 'date', run_date=datetime(2016, 12, 12, 12, 0, 0), args=['text'])

interval 间隔调度

• weeks (int) – 间隔几周
• days (int) – 间隔几天
• hours (int) – 间隔几小时
• minutes (int) – 间隔几分钟
• seconds (int) – 间隔多少秒
• start_date (datetime|str) – 开始日期
• end_date (datetime|str) – 结束日期
• timezone (datetime.tzinfo|str) – 时区

# 每两个小时调一下job_function
sched.add_job(job_function, 'interval', hours=2)

Cron 触发

• year (int|str) – 年，4位数字
• month (int|str) – 月 (范围1-12)
• day (int|str) – 日 (范围1-31)
• week (int|str) – 周 (范围1-53)
• day_of_week (int|str) – 周内第几天或者星期几 (范围0-6 或者 mon,tue,wed,thu,fri,sat,sun)
• hour (int|str) – 时 (范围0-23)
• minute (int|str) – 分 (范围0-59)
• second (int|str) – 秒 (范围0-59)
• start_date (datetime|str) – 最早开始日期(包含)
• end_date (datetime|str) – 最晚结束时间(包含)
• timezone (datetime.tzinfo|str) – 指定时区

# job_function将会在6,7,8,11,12月的第3个周五的1,2,3点运行
sched.add_job(job_function, 'cron', month='6-8,11-12', day='3rd fri', hour='0-3')
# 截止到2016-12-30 00:00:00，每周一到周五早上五点半运行job_function
sched.add_job(job_function, 'cron', day_of_week='mon-fri', hour=5, minute=30, end_date='2016-12-31')

使用装饰器

@scheduler.task('interval', id='do_job_1', seconds=30, misfire_grace_time=900)
def job1():
    print('Job 1 executed')


# cron examples
@scheduler.task('cron', id='do_job_2', minute='*')
def job2():
    print('Job 2 executed')
    
@scheduler.task('cron', id='do_job_3', week='*', day_of_week='sun')
def job3():
    print('Job 3 executed')

pause a job

scheduler.pause_job(id)

resume a job

scheduler.resume_job(id)

remove a job

scheduler.remove_job(id)

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更多相关文章和代码https://github.com/edgardeng/flaskAll