第2讲redis常用命令与高级应用

—Redis（一）1keys键名127.0.0.1:6379>seto1127.0.0.1:6379>sethallo1127.0.0.1:6379>setheeeello1127.0.0.1:6379>keys"127.0.0.1:6379>keys"2、exists键名127.0.0.1:6379>EXISTS(integer) 127.0.0.1:6379>EXISTS(integer) 3del键名127.0.0.1:6379>del(integer)127.0.0.1:6379>EXISTS(integer)4expire键127.0.0.1:6379>setage18127.0.0.1:6379>EXPIREage(integer)127.0.0.1:6379>ttl(integer)127.0.0.1:6379>ttl(integer)-127.0.0.1:6379>EXISTS(integer)5ttl127.0.0.1:6379>ttl(integer)-6select数据库号0，16databases16关键字定义127.0.0.1:6379>select17move键127.0.0.1:6379>setage18127.0.0.1:6379>moveage(integer)127.0.0.1:6379>get127.0.0.1:6379>select1127.0.0.1:6379[1]>get89rename旧名新名127.0.0.1:6379>renamenamename_new127.0.0.1:6379>getname_new10type键none(keystringlist(列表)set(集合)zset(有序集)hash(哈希表)（二）1、127.0.0.1:6379> 127.0.0.1:6379>CouldnotconnecttoRedisat127.0.0.1:6379:Connection2、echo字符串127.0.0.1:6379>echo"testmessage""testmessage"3redis45:6379>(integer)67configget:6379>configget 99)100)"900130010608、127.0.0.1:6379>(integer):6379>flushdb:6379>(integer)9二、redis1redis[root@localhostredis]#vi/usr/local/redis/etc/redis.conf#requirepassfoobaredrequirepass[root@localhostredis]#pkill[root@localhostredis]#bin/redis-server[root@localhostredis]#/usr/local/redis/bin/redis-cli127.0.0.1:6379>keys* //可以正常连接redis(error)NOAUTHAuthenticationrequired. //但因为没有，提示操作127.0.0.1:6379>authflzx_3QC //利用auth命令输入127.0.0.1:6379>keys 或[root@localhostredis]#/usr/local/redis/bin/redis-cliaflzx_3QC#在登录的同时指定127.0.0.1:6379>keys*Redis主从特点： 请Redis主从过程linux①vi/etc/sysconfig/network-scripts/ifcfg-②rm-rf/etc/udev/rules.d/70-persistent-③注意关闭和④重启动系统[root@localhost~]#vi/usr/local/redis/etc/redis.conf#slaveof<masterip><masterport> uthflzx_3QC#设定主服务器redis2）1Master1SlaveMasterIP:127.0.0.1PORT:6379Slave1IP:127.0.0.1[root@localhost~]#cp-r/usr/local/redis//usr/local/redis-[root@localhost~]#vi/usr/local/redis-slave1/etc/redis.confpidfile/usr/local/redis-slave1/redis.pidport63791#指定端dir/usr/local/redis-slave1/slaveof127.0.0.16379#指定主服IPmasuthflzx_3QC/usr/local/redis-slave1/bin/redis-serverusr/local/redis-slave1/etc/redis.conf[root@localhost~]#netstat- 0 0 [root@localhost~]#/usr/local/redis/bin/redis-cliaflzx_3QC127.0.0.1:6379>setbb234127.0.0.1:6379>keys [root@localhost~]#/usr/local/redis-slave1/bin/redis-cliaflzx_3QCp63791127.0.0.1:63791>keys 3RedisRDB持久化方式能够在指定的时间间隔能对你的数据进行快照。是默认的持久化方式。这种方式是将内存中数据以快照的方式写入到二进制文件中，默认的文件名为dump.rdb。这种持久化方式被称为快照snapshotting（快照。save900save30