工作的环境版本如下:
【Django version】: 2.1
【celery version】:4.4.0rc2
【python version】: 3.7
【Redis version】:3.2.1
启动celery没有报错,但是执行队列任务的时候就爆出下的错误:
[2019-07-07 18:43:27,756: INFO/MainProcess] Connected to redis://127.0.0.1:6379/0 [2019-07-07 18:43:27,764: INFO/MainProcess] mingle: searching for neighbors [2019-07-07 18:43:28,784: INFO/MainProcess] mingle: all alone [2019-07-07 18:43:28,818: INFO/MainProcess] celery@DESKTOP-9T9MK4N ready. [2019-07-07 18:43:28,818: INFO/MainProcess] pidbox: Connected to redis://127.0.0.1:6379/0. [2019-07-07 18:43:40,217: INFO/MainProcess] Received task: celery_tasks.tasks.send_register_active_email[c4156f7a-ea3d-457d-8b18-40cc93bb718c] [2019-07-07 18:43:40,219: ERROR/MainProcess] Task celery_tasks.tasks.send_register_active_email[c4156f7a-ea3d-457d-8b18-40cc93bb718c] raised unexpected: ImproperlyConfi gured('Requested setting EMAIL_FROM, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure( ) before accessing settings.') Traceback (most recent call last): File "c:\users\circle\appdata\local\programs\python\python37-32\lib\site-packages\celery\app\trace.py", line 385, in trace_task R = retval = fun(*args, **kwargs) File "c:\users\circle\appdata\local\programs\python\python37-32\lib\site-packages\celery\app\trace.py", line 650, in __protected_call__ return self.run(*args, **kwargs) File "C:\Users\Circle\Desktop\circle\dailyfresh\celery_tasks\tasks.py", line 25, in send_register_active_email sender = settings.EMAIL_FROM File "c:\users\circle\appdata\local\programs\python\python37-32\lib\site-packages\django\conf\__init__.py", line 57, in __getattr__ self._setup(name) File "c:\users\circle\appdata\local\programs\python\python37-32\lib\site-packages\django\conf\__init__.py", line 42, in _setup % (desc, ENVIRONMENT_VARIABLE)) django.core.exceptions.ImproperlyConfigured: Requested setting EMAIL_FROM, but settings are not configured. You must either define the environment variable DJANGO_SETTI NGS_MODULE or call settings.configure() before accessing settings.
大概意思就是没有配置设置。您必须定义环境变量DJANGO_SETTINGS_MODULE在访问设置之前调用settings.configure()。
解决办法就是:
# 使用celery,首先导入进来 from celery import Celery from django.conf import settings from django.core.mail import send_mail # 下面就是解决办法:将Django中的配置信息先导入进来 import os import django os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'dailyfresh.settings') django.setup() # 创建一个Celery类的实例对象 app = Celery('celery_tasks.tasks', broker='redis://127.0.0.1:6379/0') # 定义任务函数 @app.task def send_register_active_email(email, username, token): """发送激活邮件""" subject = '欢迎观看本篇文章' message = '希望对你有帮助' sender = settings.EMAIL_FROM recipient_list = [email] html_message = '<h1>The End</h1>' send_mail(subject, message, sender, recipient_list, html_message=html_message)