Redis 常用命令之-----键值命令

ooioiiuu

键值命令
这里就不介绍方法与描述啦，自己看例子
1、keys 查看key

1 2 3 4 5 6 7 8

127.0.0.1:6379> keys * 1) "skey2" 2) "skey1" 3) "name" 4) "zkey1" 127.0.0.1:6379> keys s* 1) "skey2" 2) "skey1"

2、del删除key

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

127.0.0.1:6379> keys * 1) "skey2" 2) "skey1" 3) "name" 4) "zkey1" 127.0.0.1:6379> del name (integer) 1 127.0.0.1:6379> keys * 1) "skey2" 2) "skey1" 3) "zkey1" 127.0.0.1:6379> del skey2 skey1 (integer) 2 127.0.0.1:6379> keys * 1) "zkey1"

3、dump序列号key并返回

1 2 3 4 5 6 7

127.0.0.1:6379> zadd zkey 3 sunshine 5 sunshineboy (integer) 2 127.0.0.1:6379> ZRANGE zkey 1 2 withscores 1) "sunshineboy" 2) "5" 127.0.0.1:6379> dump zkey "\x0c&&\x00\x00\x00#\x00\x00\x00\x04\x00\x00\bsunshine\n\xf4\x02\x0bsunshineboy\r\xf6\xff\x06\x00\xddX6\xa7I\x85\x00\x91"

4、exists测试key是否存在

1 2 3 4 5 6

127.0.0.1:6379> keys * 1) "zkey" 127.0.0.1:6379> exists zkey (integer) 1 127.0.0.1:6379> exists zkey1 (integer) 0

5、expire设置过期时间

1 2 3 4 5 6 7 8 9 10

127.0.0.1:6379> keys * 1) "zkey" 127.0.0.1:6379> expire zkey 10 (integer) 1 127.0.0.1:6379> ttl zkey (integer) 5 127.0.0.1:6379> ttl zkey (integer) -2 127.0.0.1:6379> keys * (empty list or set)

6、persist取消设定的过期时间

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

127.0.0.1:6379> zadd zkey1 1 sunshine (integer) 1 127.0.0.1:6379> keys * 1) "zkey1" 127.0.0.1:6379> EXPIRE zkey1 200 (integer) 1 127.0.0.1:6379> ttl zkey1 (integer) 195 127.0.0.1:6379> ttl zkey1 (integer) 193 127.0.0.1:6379> PERSIST zkey1 (integer) 1 127.0.0.1:6379> ttl zkey1 (integer) -1 127.0.0.1:6379> keys * 1) "zkey1"

7、move把当前数据库的key移动到指定的数据库去

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

127.0.0.1:6379> select 1 OK 127.0.0.1:6379[1]> keys * (empty list or set) 127.0.0.1:6379[1]> select 0 OK 127.0.0.1:6379> keys * 1) "zkey1" 127.0.0.1:6379> MOVE zkey1 1 (integer) 1 127.0.0.1:6379> keys * (empty list or set) 127.0.0.1:6379> select 1 OK 127.0.0.1:6379[1]> keys * 1) "zkey1"

8、pexpire设置过期时间单位毫秒

1 2 3 4

127.0.0.1:6379[1]> PEXPIRE zkey1 8000000 (integer) 1 127.0.0.1:6379[1]> PTTL zkey1 (integer) 7992155

9、pttl以毫秒为单位返回

1 2 3 4

127.0.0.1:6379[1]> PEXPIRE zkey1 8000000 (integer) 1 127.0.0.1:6379[1]> PTTL zkey1 (integer) 7992155

10、ttl以秒为单位返回

1 2 3 4

127.0.0.1:6379[1]> EXPIRE zkey1 9000 (integer) 1 127.0.0.1:6379[1]> ttl zkey1 (integer) 8995

11、randomkey随机弹出当前库的key

1 2 3 4 5 6 7 8 9 10

127.0.0.1:6379[1]> keys * 1) "lkey" 2) "lkey1" 3) "zkey1" 127.0.0.1:6379[1]> RANDOMKEY "zkey1" 127.0.0.1:6379[1]> RANDOMKEY "zkey1" 127.0.0.1:6379[1]> RANDOMKEY "lkey"

12、rename修改当前库key的名称，成功返回0

1 2 3 4 5 6 7 8 9 10

127.0.0.1:6379[1]> keys * 1) "lkey" 2) "lkey1" 3) "zkey1" 127.0.0.1:6379[1]> RENAME zkey1 zzkey1 OK 127.0.0.1:6379[1]> keys * 1) "zzkey1" 2) "lkey" 3) "lkey1"

13、renamenx修改当前库key的名称，仅仅适用于key存在

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

127.0.0.1:6379[1]> keys * 1) "zzkey1" 2) "lkey" 3) "lkey1" 127.0.0.1:6379[1]> RENAMENX zzkey1 zkey1 (integer) 1 127.0.0.1:6379[1]> keys * 1) "lkey" 2) "zkey1" 3) "lkey1" 127.0.0.1:6379[1]> RENAMENX zzkey1 newzkey1 (error) ERR no such key 127.0.0.1:6379[1]> keys * 1) "lkey" 2) "zkey1" 3) "lkey1"

14、type查看当前key键值的存储类型

1 2 3 4 5 6 7 8

127.0.0.1:6379[1]> keys * 1) "lkey" 2) "zkey1" 3) "lkey1" 127.0.0.1:6379[1]> TYPE lkey list 127.0.0.1:6379[1]> TYPE zkey1 zset

键值命令就介绍完毕啦！~