django celery redis django celery redis使用具体实践

# celery 设置
# celery中间人 redis://redis服务所在的ip地址:端口/数据库号
BROKER_URL = 'redis://127.0.0.1:6379/0'
# celery结果返回，可用于跟踪结果
CELERY_RESULT_BACKEND = 'redis://127.0.0.1:6379/0'

# celery内容等消息的格式设置
CELERY_ACCEPT_CONTENT = ['application/json', ]
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'

# celery时区设置，使用settings中TIME_ZONE同样的时区
CELERY_TIMEZONE = TIME_ZONE

# coding:utf-8
from __future__ import absolute_import, unicode_literals

from celery import Celery
from django.conf import settings
import os

# 获取当前文件夹名，即为该Django的项目名
project_name = os.path.split(os.path.abspath('.'))[-1]
project_settings = '%s.settings' % project_name

# 设置环境变量
os.environ.setdefault('DJANGO_SETTINGS_MODULE', project_settings)

# 实例化Celery,网上很多教程这里都是没有设置broker造成启动失败
app = Celery('tasks', broker='redis://127.0.0.1:6379/0')

# 使用django的settings文件配置celery
app.config_from_object('django.conf:settings')

# Celery加载所有注册的应用
app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)

# 引入celery实例对象
from __future__ import absolute_import, unicode_literals
from .celery import app as celery_app
__all__ = ['celery_app]

import time
from celery import task
@task
def add(a,b):
  print("这是任务开始")
  print(a+b)
  time.sleep(10)
  print("这是任务结束")

path('add', views.add, name="add")

from . import tasks
def add(request,*args,**kwargs):
  tasks.add.delay(1,2)
  result = {'code': 0, 'msg': '这是一个后台任务'}
  return JsonResponse(result)

celery -A djangoApi worker --pool=solo -l info

[tasks]
 . api.base.BaseViewTask.task_run
 . api.tasks.add

[2019-04-07 13:26:02,855: INFO/MainProcess] Connected to redis://127.0.0.1:6379/0
[2019-04-07 13:26:02,869: INFO/MainProcess] mingle: searching for neighbors
[2019-04-07 13:26:03,911: INFO/MainProcess] mingle: all alone
[2019-04-07 13:26:03,926: WARNING/MainProcess] e:\app\python35\lib\site-packages\celery\fixups\django.py:202: UserWarning: Using settings.DEBUG leads to a memory leak, never use this setting in production environments!
 warnings.warn('Using settings.DEBUG leads to a memory leak, never '
[2019-04-07 13:26:03,926: INFO/MainProcess] celery@PC-20181208QWQO ready.
[2019-04-07 13:29:56,889: INFO/MainProcess] Received task: api.tasks.add[9fd98fd0-50ae-427f-8f33-52d1e4b43068]
[2019-04-07 13:29:56,894: WARNING/MainProcess] 这是任务开始
[2019-04-07 13:29:56,895: WARNING/MainProcess] 3
[2019-04-07 13:30:06,896: WARNING/MainProcess] 这是任务结束
[2019-04-07 13:30:06,898: INFO/MainProcess] Task api.tasks.add[9fd98fd0-50ae-427f-8f33-52d1e4b43068] succeeded in 10.0s: None