Django+Celery非同步傳送郵件

1. 安裝

   pip install django==1.11.7
   pip install celery

2. 專案目錄

    AXF
       ├── alipay_config
       │   ├── alipay_rsa_public_key.pem
       │   └── app_rsa_private_key.pem
       ├── App
       │   ├── admin.py
       │   ├── apps.py
       │   ├── __init__.py
       │   ├── migrations
       │   │   ├── __init__.py
       │   │   └── __pycache__
       │   ├── models.py
       │   ├── __pycache__
       │   ├── tests.py
       │   ├── urls.py
       │   ├── views_contstant.py               封裝傳送郵件函式
       │   └── views.py
       ├── AXF
       │   ├── __init__.py
       │   ├── __pycache__
       │   ├── settings.py
       │   ├── urls.py
       │   └── wsgi.py
       ├── task.py                              celery非同步任務                          
       ├── manage.py
       ├── middleware
       ├── static
   

3. settings配置

   #email
   EMAIL_BACKEND = `django.core.mail.backends.smtp.EmailBackend`
   EMAIL_USE_TLS = False
   EMAIL_USE_SSL = True
   EMAIL_HOST = `smtp.163.com`
   EMAIL_PORT = 465
   EMAIL_HOST_USER = `sajinde@163.com`
   EMAIL_HOST_PASSWORD = `**********`
   DEFAULT_FROM_EMAIL = `sam <sajinde@163.com>`

4. celery模組

   #在task檔案中
   
   
   from __future__ import absolute_import, unicode_literals
   import os
   
   from celery import Celery
   
   # set the default Django settings module for the `celery` program.
   #        AXF.settings:專案下的settings檔案
   os.environ.setdefault(`DJANGO_SETTINGS_MODULE`, `AXF.settings`)
   
   
   broker = `redis://127.0.0.1:6379/6`  # 將要進行的任務
   backend = `redis://127.0.0.1:6379/7` # 返回的結果
   app = Celery(`App`, broker=broker, backend=backend)
   # app = Celery(`App`)
   
   # Using a string here means the worker doesn`t have to serialize
   # the configuration object to child processes.
   # - namespace=`CELERY` means all celery-related configuration keys
   #   should have a `CELERY_` prefix.
   # app.config_from_object(`django.conf:settings`, namespace=`CELERY`)
   
   # Load task modules from all registered Django app configs.
   app.autodiscover_tasks()     #自動搜尋所有的任務
   
   `debug開啟`
   # @app.task(bind=True)
   # def debug_task(self):
   #     print(`Request: {0!r}`.format(self.request))

5. App下的init檔案

   from __future__ import absolute_import, unicode_literals
   from task import app as celery_app
   
   __all__ = [`celery_app`]

6. 傳送郵件

   from celery import shared_task
   
   @shared_task     #可多次重用,@shared_task裝飾可以讓你無需任何具體的應用程式例項建立任務
   def send_register_mail(username, email, token):
       # 傳送郵件
       print(`------------------------------------`)
       sleep(10)
       print(`------------------------------------`)
       title = `啟用`
       msg = ` `
   
       data = {
           `username`: username,
           `url`: `http://127.0.0.1:8000/app/active/?token=` + token
       }
       temp = loader.get_template(`user/active.html`)
       html = temp.render(data)
   
       receiver = [
           email,
       ]
   
       send_mail(title,
                 msg,
                 from_email=settings.DEFAULT_FROM_EMAIL,
                 recipient_list=receiver,
                 html_message=html)
   
       print(`send mail`)

7. 傳送郵件呼叫

   send_register_mail.delay(username, email, token)

8. 開啟任務佇列

   celery -A task worker -l info        或者
   celery -A task worker --loglevel=info