在django項目下執行定時任務

前面我介紹了使用uwsgi部署django項目，如今使用uwsgi來實現定時任務

uwsgi實現定時任務的Python接口詳細請參考官方文檔

把下面的代碼加入uwsgi的入口程序中，能夠寫到Django程序的wsgi.py裏面：

import uwsgi

# 將具體的cron job分到另外一個文件中寫，便於維護
from cron_job import *

for job_id, job in enumerate(jobs):
    uwsgi.register_signal(job_id, "", job['name'])
    if len(job['time']) == 1:
        uwsgi.add_timer(job_id, job['time'][0])
    else:
        uwsgi.add_cron(job_id, job['time'][0], job['time'][1], job['time'][2], job['time'][3], job['time'][4])

如下是cron_job.py，增長、刪除定時任務只須要修改這個Python腳本：

import time

def cron_print_time(signum):
    ISOTIMEFORMAT='%Y-%m-%d %X'
    print time.strftime(ISOTIMEFORMAT, time.localtime())

def cron_print_hello(signum):
    print "hello"

jobs = [ { "name" : cron_print_time,
           "time": [0, 17, -1, -1, 1], #minute, hour, day, month, weekday, "-1" means "all"，此例爲每一個週一的17：00
          },     
         { "name" : cron_print_hello,
           "time": [2],  #每隔2秒
          },    
]