新建项目名为 proj
- proj
- __init__.py
- app.py
- tasks.py
app.py
from celery import Celery
from kombu import Exchange, Queue
app = Celery('proj',
broker='amqp://admin:[email protected]:5672',
backend='redis://127.0.0.1:6379/1',
task_serializer = 'json',
result_serializer = 'json',
accept_content = ['json'],
timezone = 'Europe/Oslo',
enable_utc = True,
include=['proj.tasks'],
)
app.conf.update(
task_queues=[
Queue('littleCar_instructions', Exchange('littleCar'),
routing_key='little_routingKey',
#queue_arguments={'x-max-length': 3}),
],
)
if __name__ == '__main__':
app.start()
broker 消息中间件, worker从worker中获取消息来执行task
backend 任务执行结果存储
tasks.py
from proj.app import app
import time
@app.task()
def getmsg(msg):
print("开始执行任务")
return msg
这是celery流程图
打开cmd 执行命令：
celery -A proj.app worker -l info
运行日志 [queues] 是worker监听的队列
[tasks] 是绑定worker绑定的任务
worker启动后来生产消息，让worker来执行任务
可以写个py 也可以直接往队列发送消息
main.py
from dipan.proj.tasks import getmsg
# r1=mul.apply_async((), queue='test', countdown=10)
r1=getmsg.delay(1)
print(r1)