1.timeloop 定时执行任务,可运用于多周期任务

#!/usr/bin/env python
# encoding: utf-8

import time
import requests
from timeloop import Timeloop
from datetime import timedelta


def run_api():
    url="http://127.0.0.1:5000/indexNew"
    res=requests.get(url).text
    print("5s job current time:{}".format(time.ctime()))

cron=Timeloop()
#每隔2s执行一次
@cron.job(interval=timedelta(seconds=2))
def run_job_every_2S():
    run_api()

if __name__=="__main__":
    cron.start(block=True)

2.threading.Timer()方法，此方法只能执行一次，多次执行需要添加循环

#!/usr/bin/env python
# encoding: utf-8

import time
import requests
import threading

def run_api():
    url="http://127.0.0.1:5000/indexNew"
    res=requests.get(url).text
    print("5s job current time:{}".format(time.ctime()))

def main():
    threads=[]
    for i in range(3):
        t=threading.Timer(10,run_api)#Timer(interval,function,args[],kwargs={})其中interval是指定时间，function执行的方法，args方法的参数
        t.start()
        threads.append(t)
    for thread in threads:
        thread.join()
    print(len(threads))
    return len(threads)



if __name__=="__main__":
    num=0
    while True:
        print("Main threading is run")
        main()
        num+=1
        if num==4:
            break

3.apscheduler 定时任务

import time
import requests
from apscheduler.schedulers.blocking import BlockingScheduler
from datetime import datetime
def run_api():
    url="http://127.0.0.1:5000/indexNew"
    res=requests.get(url).text
    print("5s job current time:{}".format(time.ctime()))

cheduler=BlockingScheduler()
cheduler.add_job(run_api,"interval",seconds=10) #每10S执行一次
cheduler.start()

4.flask_apscheduler 定时任务

from flask import Flask,redirect,url_for,request,render_template,make_response
from flask import escape,session,abort,flash
from werkzeug.utils import secure_filename

from flask_apscheduler import APScheduler

import os

class Config(object):
    '''创建配置'''
    #任务列表
    JOBS=[
        {'id':'job1',
            'func':'__main__:task1', #要执行任务的方法名
            'args':("张三","12"), #入参
            'trigger':'interval',#执行器，固定周期执行一次，也可以用cron与Linux定时器类似
            #'hour':1,
            'seconds': 60
        },
        {
            'id':'job2',
            'func':'__main__:task2',
            'args':("李四","14"),
            'trigger':'cron',
            'hour':11,
            'minute':23,
            'second': 1 #注意此参数不带S
        }
    ]

app=Flask(__name__)
app.config.from_object(Config) #为实例化的flask引入配置

def task1(name,age):
    print("执行任务1")
    print("姓名:%s,年龄：%s"%(name,age))


def task2(name,age):
    print("执行任务2")
    print("姓名:%s,年龄：%s" % (name, age))




if __name__ == '__main__':
    cheduler = APScheduler()
    cheduler.init_app(app)
    cheduler.start()
    app.run(host='127.0.0.1',debug=True,port=5000)