redis
进入控制台
- redis-cil
- 需要输入密码的时候可以是用
-a
redis-cil -a abcd1234
redis 数据类型
- string
- hash
- list
- set
- zset( 有序集合)
键
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select [index]
切换库 类似于 db 的use dbname
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keys [pattern]
查看当前的键127.0.0.1:6379[1]> keys * 1) "test1" 2) "test"
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del key
删除键127.0.0.1:6379[1]> del test (integer) 1
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dump key
返回序列化之后的值127.0.0.1:6379[1]> dump test "x00x0bhello-worldx00xad5x9axf9xb0xf8xf2?"
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exists key
键是否存在127.0.0.1:6379[1]> exists test (integer) 1 127.0.0.1:6379[1]> exists test1 (integer) 0
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expire key seconds
设置过期时间127.0.0.1:6379[1]> expire test 20 (integer) 1 127.0.0.1:6379[1]> ttl test (integer) 15 127.0.0.1:6379[1]> ttl test (integer) 14 127.0.0.1:6379[1]> ttl test (integer) 4
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ttl key
获取过期时间127.0.0.1:6379[1]> ttl test (integer) -2 127.0.0.1:6379[2]> ttl t1 (integer) -1
键不存在则返回
-2
键永不过期返回-1
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pttl key
使用毫秒返回剩余的过期时间 -
pexpire key milliseconds
设置过期时间为毫秒 -
expireat key timestamp
设置到指定时间戳过期 -
pexpireat key milliseconds
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move key db
移动 key 到某 db127.0.0.1:6379[1]> keys * 1) "t1" 127.0.0.1:6379[1]> move t1 2 (integer) 1 127.0.0.1:6379[1]> select 2 OK 127.0.0.1:6379[2]> keys * 1) "t1" 127.0.0.1:6379[2]> select 1 OK 127.0.0.1:6379[1]> keys * (empty list or set)
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randomkey
返回随机的一个键127.0.0.1:6379[2]> randomkey "t1" 127.0.0.1:6379[2]> randomkey "t2"
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rename key newkey
重命名127.0.0.1:6379[2]> rename t1 ttttt OK 127.0.0.1:6379[2]> keys * 1) "ttttt" 2) "t2"
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renamenx key newkey
当 newkey 不存在的时候重命名127.0.0.1:6379[2]> keys * 1) "tttt" 2) "ttttt" 127.0.0.1:6379[2]> set t1 3 OK 127.0.0.1:6379[2]> renamenx t1 tttt (integer) 0 127.0.0.1:6379[2]> keys * 1) "t1" 2) "tttt" 3) "ttttt" 127.0.0.1:6379[2]>
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type key
获取 key 的类型127.0.0.1:6379[2]> type tttt string
字符串
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set key value
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get key value
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getrange key start end
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getset key value
设置成新的 value 并返回原 value127.0.0.1:6379[2]> set t1 test OK 127.0.0.1:6379[2]> get t1 "test" 127.0.0.1:6379[2]> getset t1 fff "test" 127.0.0.1:6379[2]> get t1 "fff" 127.0.0.1:6379[2]> getrange t1 0 1 "ff"
注意: redis 的 range 是两边都是闭区间,并作为一个 feature
ps. 个人用起来觉得比较别扭
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setex key seconds value
设置 value 并且设置过期时间127.0.0.1:6379[2]> setex t2 10 f OK 127.0.0.1:6379[2]> ttl t2 (integer) 4
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psetex key milliseconds value
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setnx key value
不存在 key 的时候设置127.0.0.1:6379[2]> setex t2 10 f OK 127.0.0.1:6379[2]> ttl t2 (integer) 4
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mset k1 v1 k2 v2
设置多个值127.0.0.1:6379[2]> mset k1 v1 k2 v2 OK 127.0.0.1:6379[2]> keys * 1) "k1" 2) "ttttt" 3) "t1" 4) "k2" 5) "tttt" 6) "t2" 127.0.0.1:6379[2]> get k1 "v1" 127.0.0.1:6379[2]> get k2 "v2" 127.0.0.1:6379[2]>
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msetnx k1 v1 k2 v2
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incr
值自增1127.0.0.1:6379[2]> set k1 1 OK 127.0.0.1:6379[2]> incr k1 (integer) 2 127.0.0.1:6379[2]> get k1 "2"
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decr
值子减1127.0.0.1:6379[2]> decr k1 (integer) 1 127.0.0.1:6379[2]> get k1 "1"
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append key value
追加 value 到原来的值127.0.0.1:6379[2]> append k1 test (integer) 5 127.0.0.1:6379[2]> get k1 "1test"