Python redis操作实例分析【连接、管道、发布和订阅等】

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import redis
r = redis.Redis(host='192.168.0.110', port=6379,db=0)
r.set('name', 'zhangsan')  #添加
print (r.get('name'))  #获取

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import redis
pool = redis.ConnectionPool(host='192.168.0.110', port=6379)
r = redis.Redis(connection_pool=pool)
r.set('name', 'zhangsan')  #添加
print (r.get('name'))  #获取

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import redis
pool = redis.ConnectionPool(host='192.168.0.110', port=6379)
r = redis.Redis(connection_pool=pool)
pipe = r.pipeline(transaction=True)
r.set('name', 'zhangsan')
r.set('name', 'lisi')
pipe.execute()

#!/usr/bin/env python
#-*- coding:utf-8 -*-
import redis
class RedisHelper(object):
  def __init__(self):
    self.__conn = redis.Redis(host='192.168.0.110',port=6379)#连接Redis
    self.channel = 'monitor' #定义名称
  def publish(self,msg):#定义发布方法
    self.__conn.publish(self.channel,msg)
    return True
  def subscribe(self):#定义订阅方法
    pub = self.__conn.pubsub()
    pub.subscribe(self.channel)
    pub.parse_response()
    return pub

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#发布
from RedisHelper import RedisHelper
obj = RedisHelper()
obj.publish('hello')#发布

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#订阅
from RedisHelper import RedisHelper
obj = RedisHelper()
redis_sub = obj.subscribe()#调用订阅方法
while True:
  msg= redis_sub.parse_response()
  print (msg)