redis python操作api
redis单例数据库
1 #redis单例连接 2 ''' 3 redis-server redis_diy.conf 4 ''' 5 import redis 6 conn=redis.StrictRedis(host='192.168.160.135',port='6380',db=0,password='123456')#redis配置文件，db指定redis数据库的隔离区，有0-15共16个，默认为0 7 print(conn.dbsize()) 8 print(conn.keys()) 9 conn.set('age',18) 10 print(conn.keys()) 11 print(conn.get('name')) 12 print(conn.exists('name'))
redis-sentinel（哨兵）
1 #redis-sentinel连接 2 ''' 3 启动redis服务端(6390主库)： 4 redis-server msconf/redis-6390.conf 5 redis-server msconf/redis-6391.conf 6 redis-server msconf/redis-6392.conf 7 redis-server msconf/redis-6393.conf 8 启动哨兵功能： 9 redis-sentinel redis_sentinel/redis-sentinel_26390.conf 10 redis-sentinel redis_sentinel/redis-sentinel_26391.conf 11 redis-sentinel redis_sentinel/redis-sentinel_26392.conf 12 ''' 13 14 ## 导入redis sentinel包 15 from redis.sentinel import Sentinel 16 #指定sentinel的地址和端口号（连接哨兵） 17 sentinel=Sentinel([('192.168.160.135',26390),('192.168.160.135',26391),('192.168.160.135',26392)],socket_timeout=0.1) 18 #测试，获取以下主库和从库的信息：mymaster是哨兵配置文件中的指定的监控主库 19 print(sentinel.discover_master('mymaster'))#主库信息 20 print(sentinel.discover_slaves('mymaster'))#从库信息 21 22 ##配置读写分离 23 #写节点：主库 24 master=sentinel.master_for('mymaster',password=123456,socket_timeout=0.1)#注意主库设置了安全模式有密码 25 print(master) 26 #读节点:从库 27 slave=sentinel.slave_for('mymaster',password=123456,socket_timeout=0.1)#注意从库设置了安全模式有密码 28 print(slave) 29 30 #读写分离测试 31 print(master.dbsize()) 32 print(master.keys()) 33 print(slave.keys()) 34 master.set('name4',4) 35 print(slave.keys()) 36 print(slave.get('name4'))
redis-cluster(集群)
1 # redis-cluster集群:https://github.com/Grokzen/redis-py-cluster 2 # pip install redis-py-cluster 3 from rediscluster import StrictRedisCluster 4 #是少要链接集群中的一台数据库，可以是多台，防止有的数据库会挂掉 5 startup_nodes = [{"host": "192.168.160.135", "port": "7000"}, {"host": "192.168.160.135", "port": "7001"}, 6 {"host": "192.168.160.135", "port": "7002"}, {"host": "192.168.160.135", "port": "7003"}, 7 {"host": "192.168.160.135", "port": "7004"}, {"host": "192.168.160.135", "port": "7005"} ] 8 rc = StrictRedisCluster(startup_nodes=startup_nodes,password=123456, decode_responses=True) 9 rc.set('name1',1234) 10 print(rc.keys()) 11 print(rc.dbsize()) 12 print(rc.get('name1'))
