python - Django如何监听启动，开启另外后台线程？

Question

1. 无法启动的时候另外启动一个后台线程

2. 部分代码如下：

mqtt_bridge/__init__.py

# coding=utf8
from bridge import start
import threading

print 'import %s thread id: %s' % ('bridge.start', threading.current_thread().ident)
start()  # 重复启动啊

在Install apps里面加入模块名，在Django启动的时候会自动导入

INSTALLED_APPS = (
    # 'jet.dashboard',
    # 'jet',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # Django rest framework
    'rest_framework',
    'rest_framework.authtoken',
    # my apps
    'mqtt_bridge'
)

3. 控制台输出:

import bridge.start thread id: 7124
bridge-54 INFO : MQTT client listen loop start! thread id: 8680
bridge-28 INFO : MQTT client connected with result code: 0
import bridge.start thread id: 8200
bridge-54 INFO : MQTT client listen loop start! thread id: 840
bridge-28 INFO : MQTT client connected with result code: 0
Performing system checks...

4. 很明显这个模块被导入了两次，模块里面的线程也是开启了两个，这样很耗费系统资源。

5. 其他解决办法只能去占有端口，然后判断是否已经启动，觉得太低效了。

参考：从Django启动守护进程

Answer 1

Django APP에서 일부 초기화 작업을 수행하려면 APP의 app.py에서 구성 클래스를 사용자 정의한 다음 Ready() 메서드를 다시 작성해야 합니다.

Django 애플리케이션 초기화 과정: https://docs.djangoproject.co...