[root@localhost celery]# cat tasks.py

#!/usr/bin/env python
#-*- coding:utf-8 -*-
from celery import Celery

app = Celery()
app.config_from_object("celeryconfig")

@app.task
def taskA(x,y):
return x + y

@app.task
def taskB(x,y,z):
return x + y + z

上面的代码中，首先定义了一个Celery的对象，然后通过celeryconfig.py对celery对象进行设置。之后又分别定义了三个task，分别是taskA， taskB和add。

[root@localhost celery]# cat celeryconfig.py

#!/usr/bin/env python
#-*- coding:utf-8 -*-

from kombu import Exchange,Queue

BROKER_URL = "redis://192.168.48.131:6379/1"
CELERY_RESULT_BACKEND = "redis://192.168.48.131:6379/2"

CELERY_QUEUES = (
Queue("default",Exchange("default"),routing_key="default"),
Queue("for_task_A",Exchange("for_task_A"),routing_key="for_task_A"),
Queue("for_task_B",Exchange("for_task_B"),routing_key="for_task_B")
)

CELERY_ROUTES = {
'tasks.taskA':{"queue":"for_task_A","routing_key":"for_task_A"},
'tasks.taskB':{"queue":"for_task_B","routing_key":"for_task_B"}
}

配置文件一般单独写在一个文件中

celery -A tasks worker -l info -n workerA.%h -Q for_task_A
celery -A tasks worker -l info -n workerB.%h -Q for_task_B

from tasks import *
re1 = taskA.delay(100, 200)
print(re1.result)
re2 = taskB.delay(1, 2, 3)
print(re2.result)
re3 = add.delay(1, 2, 3)
print(re3.status)     #PENDING

celery -A tasks worker -l info -n worker.%h -Q celery

CELERY_TIMEZONE = 'UTC'
CELERYBEAT_SCHEDULE = {
    'taskA_schedule' : {
        'task':'tasks.taskA',
        'schedule':20,
        'args':(5,6)
    },
    'taskB_scheduler' : {
        'task':"tasks.taskB",
        "schedule":200,
        "args":(10,20,30)
    },
    'add_schedule': {
        "task":"tasks.add",
        "schedule":10,
        "args":(1,2)
    }

注意格式，否则会有问题

celery –A tasks beat

Celery启动定时任务：

这样taskA每20秒执行一次taskA.delay(5, 6)
taskB每200秒执行一次taskB.delay(10, 20, 30)
Celery每10秒执行一次add.delay(1, 2)