APScheduler包——python实现定时任务

最新推荐文章于 2023-08-18 17:16:03 发布

PinkyZ

最新推荐文章于 2023-08-18 17:16:03 发布

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文章标签： python

本文链接：https://blog.youkuaiyun.com/qq_38622141/article/details/122337434

本文介绍了如何结合Tornado Web框架与APScheduler库创建一个每天7点执行的定时任务。在运行过程中遇到了Pytz库的弃用警告，通过设置时区参数`timezone='Asia/Shanghai'`成功解决。示例代码展示了初始化调度器和启动HTTP服务器的过程。

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APScheduler+tornado的使用：

# -*- coding: utf-8 -*-

"""
@Author  : Pink
@Time    : 12/29/2021 2:48 PM
@Function: 
"""
import time
from tornado import web, ioloop
from tornado.httpserver import HTTPServertime_create_delta
from settings.settings import settings
from settings.urls import urls
from apscheduler.schedulers.tornado import TornadoScheduler


def hello():
    print('hello')


def init_scheduler():
    scheduler = TornadoScheduler(timezone='Asia/Shanghai')
    # 定时每天7点0分0秒 执行一次hello函数  next_run_time的意思是从什么时候开始
    # scheduler.add_job(hello, "cron", hour=7, minute=0, second=0, next_run_time=datetime.now())
    scheduler.add_job(hello, "cron", hour=7, minute=0, second=0)
    scheduler.start()


def make_app():
    app = web.Application(urls, **settings)
    return app


if __name__ == '__main__':
    init_scheduler()
    app = make_app()
    server = HTTPServer(app)
    server.bind(8081)
    server.start(1)
    ioloop.IOLoop.current().start()

使用apscheduler遇到的问题

PytzUsageWarning: The zone attribute is specific to pytz's interface; please migrate to a new time zone provider. For more details on how to do so, see https://pytz-deprecation-shim.readthedocs.io/en/latest/migration.html
if obj.zone == 'local':

PytzUsageWarning: The normalize method is no longer necessary, as this time zone supports the fold attribute (PEP 495). For more details on migrating to a PEP 495-compliant implementation, see https://pytz-deprecation-shim.readthedocs.io/en/latest/migration.html
return self.timezone.normalize(dateval + difference), fieldnum

PytzUsageWarning: The localize method is no longer necessary, as this time zone supports the fold attribute (PEP 495). For more details on migrating to a PEP 495-compliant implementation, see https://pytz-deprecation-shim.readthedocs.io/en/latest/migration.html
return self.timezone.localize(datetime(**values))

解决方法：添加时区

scheduler = TornadoScheduler(timezone='Asia/Shanghai')