Python-redis发布和订阅

Python通过redis库来实现发布和订阅

import redis
class RedisHelper:

    def __init__(self):
        self.__conn = redis.Redis(host='192.168.5.124',password='XXXXX')
        self.chan_pub = 'TaskManager.Redis.Channel'
        self.chan_sub = 'TaskManager.Redis.Channel'

    def public(self,msg):
        self.__conn.publish(self.chan_pub, msg)
        return True

    def subscribe(self):
        pub = self.__conn.pubsub()
        pub.subscribe(self.chan_pub)
        pub.parse_response()
        return pub


rhl = RedisHelper()
msg = {
    "name":'Tim'
}

redis_sub = rhl.subscribe()

rhl.public(json.dumps(msg))
while True:
    msg = redis_sub.parse_response()
    print(msg)

chan_pub是redis通信频道，连接同一个频道的发布者和订阅者能通信
如果redis库设置的密码，一定要加上password，不然会报错