这篇文章主要为大家详细介绍了Python守护进程(多线程开发)入门实例，具有一定的参考价值，可以用来参考一下。

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# @param Python守护进程(多线程开发)

# @author 512笔记|512pic.com

#!/usr/bin/python

import sys,time,json,logging

import Queue, threading, datetime

from lib.base.daemon import Daemon

from lib.queue.httpsqs.HttpsqsClient import HttpsqsClient

from lib.db.DbMongodb import DbMongodb

logging.basicConfig(level=logging.DEBUG,

format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',

datefmt='%a, %d %b %Y %H:%M:%S',

filename='myapp.log',

filemode='w')

queue = Queue.Queue()

httpsqs = HttpsqsClient('192.168.0.218','1218','httpsqs.com')

db = DbMongodb('192.168.0.119','testdb')

class ThreadGetHttpSqs(threading.Thread):

def __init__(self):

threading.Thread.__init__(self)

self.httpsqs = httpsqs

self.queue = queue

def run(self):

while True:

data = self.httpsqs.get('logtest')

if data is not None:

self.queue.put(data)

logging.info('get:id %s , tablename %s' % (self.getName(),data))

else:

time.sleep(3)

class ThreadInsertDB(threading.Thread):

def __init__(self):

threading.Thread.__init__(self)

self.queue = queue

self.db = db

def run(self):

while True:

chunk = self.queue.get()

s = json.loads(chunk)

tablename = s['table']

data = s['data']

self.db.save(tablename,data)

logging.info('insert:id %s , tablename %s' % (self.getName(),tablename))

self.queue.task_done()

class MyDaemon(Daemon):

def _run(self):

while True:

for i in range(2):

t = ThreadGetHttpSqs()

#t.setDaemon(True)

t.start()

for i in range(2):

b = ThreadInsertDB()

#t.setDaemon(True)

b.start()

#线程已经为永真循环，进程不能再循环

time.wait()

if __name__ == "__main__":

daemon = MyDaemon('/tmp/daemon-example.pid')

if len(sys.argv) == 2:

if 'start' == sys.argv[1]:

daemon.start()

elif 'stop' == sys.argv[1]:

daemon.stop()

elif 'restart' == sys.argv[1]:

daemon.restart()

else:

print "Unknown command"

sys.exit(2)

sys.exit(0)

else:

print "usage: %s start|stop|restart" % sys.argv[0]

sys.exit(2)

# End www_512pic_com

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关键词：守护进程