使用客戶端工具

bin/redis-cli 

測試命令

127.0.0.1:6379> ping
PONG

數據庫

redis 可以提供16個數據庫

通過select 選擇，默認是0數據庫

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) "num"
 2) "myb2"
 3) "mylist2"
 4) "myhash"
 5) "myb1"
 6) "myset"
 7) "name"
 8) "eclipse"
 9) "myb3"
10) "name2"
11) "mya1"
12) "mylist"
13) "mya2"
14) "mysort"
15) "myahs"
16) "aa1"
17) "mya3"

清空數據庫

flushall

基本數據

存數據

127.0.0.1:6379> set name zhangsan
OK

獲取數據

127.0.0.1:6379> get name
"zhangsan"

刪除數據

127.0.0.1:6379> del name
(integer) 1

查看所有的key

127.0.0.1:6379> keys *
1) "name2"
2) "name"

查看匹配可以

127.0.0.1:6379> keys a*
1) "abc"
2) "aa1"

數字遞增

127.0.0.1:6379> incr num
(integer) 1
127.0.0.1:6379> get num
"1"
127.0.0.1:6379> incr num
(integer) 2
127.0.0.1:6379> get num
"2"
127.0.0.1:6379> 

如果不存在會設置初始值為0，然后+1

數字遞減

127.0.0.1:6379> decr num
(integer) 1
127.0.0.1:6379> get num
"1"
127.0.0.1:6379> decr num
(integer) 0
127.0.0.1:6379> get num
"0"
127.0.0.1:6379> 
127.0.0.1:6379> decr num
(integer) -1
127.0.0.1:6379> get num
"-1"

數字增加指定的值

127.0.0.1:6379> incrby num 5
(integer) 4
127.0.0.1:6379> incrby num 5
(integer) 9
127.0.0.1:6379> 

數字減去指定的值

127.0.0.1:6379> decrby num 3
(integer) 6
127.0.0.1:6379> decrby num 3
(integer) 3
127.0.0.1:6379> decrby num 3
(integer) 0
127.0.0.1:6379> 

拼接字符串

127.0.0.1:6379> append name laoli
(integer) 13
127.0.0.1:6379> get name
"zhangsanlaoli"

重命名KEY

127.0.0.1:6379> set a1 a1
OK
127.0.0.1:6379> get a1
"a1"
127.0.0.1:6379> rename a1 aa1
OK
127.0.0.1:6379> get a1
(nil)
127.0.0.1:6379> get aa1
"a1"

設置過期時間
單位秒

127.0.0.1:6379> get abc
"abc"
127.0.0.1:6379> expire abc 10
(integer) 1
127.0.0.1:6379> get abc
"abc"
127.0.0.1:6379> get abc
(nil)

查看超時時間

127.0.0.1:6379> set abc abc
OK
127.0.0.1:6379> get abc
"abc"
127.0.0.1:6379> ttl abc
(integer) -1
127.0.0.1:6379> expire abc 100
(integer) 1
127.0.0.1:6379> ttl abc
(integer) 96
127.0.0.1:6379> 

獲取key存儲的數據類型

127.0.0.1:6379> type abc
string
127.0.0.1:6379> type mylist
list
127.0.0.1:6379> type myset
set

Hash 類型

設值

127.0.0.1:6379> hset myhash uname zhangsan
(integer) 1
127.0.0.1:6379> hset myhash age 18
(integer) 1

設置多個值

127.0.0.1:6379> hmset myhash2 uname zhangs age 11
OK

取值

127.0.0.1:6379> hget myhash uname
"zhangsan"

一次取多個值

127.0.0.1:6379> hmget myhash uname age
1) "zhangsan"
2) "18"

獲取全部值

127.0.0.1:6379> hgetall myhash
1) "uname"
2) "zhangsan"
3) "age"
4) "18"

刪除一個值

127.0.0.1:6379> hdel myhash2 uname age
(integer) 2
127.0.0.1:6379> hgetall myhash2
(empty list or set)

刪除不存在的

127.0.0.1:6379> hdel myhash2 uname
(integer) 0

刪除整個集合

127.0.0.1:6379> hmset myhash2 uname zhangs age 21
OK
127.0.0.1:6379> del myhash2
(integer) 1
127.0.0.1:6379> hget myhash2 uname
(nil)

增加數據

127.0.0.1:6379> hget myhash age
"18"
127.0.0.1:6379> hincrby myhash age 5
(integer) 23
127.0.0.1:6379> hget myhash age
"23"

判斷hash中某個鍵值是否存在

127.0.0.1:6379> hexists myhash uname
(integer) 1

1表示存在，0表示不存在

獲取HASH中的鍵值對數量

127.0.0.1:6379> hgetall myhash
1) "uname"
2) "zhangsan"
3) "age"
4) "23"
127.0.0.1:6379> hlen myhash
(integer) 2

獲取Hash中所有的key

127.0.0.1:6379> hkeys myhash
1) "uname"
2) "age"

獲取hash中所有的值

127.0.0.1:6379> hvals myhash
1) "zhangsan"
2) "23"

數據結構list

ArrayList使用數組方式， LinkedList使用雙向鏈表

從左側向列表中添加數據

127.0.0.1:6379> lpush mylist a b c
(integer) 3
127.0.0.1:6379> lpush mylist 1 2 3
(integer) 6
127.0.0.1:6379> 

右側添加

127.0.0.1:6379> rpush mylist2 a b c
(integer) 3
127.0.0.1:6379> rpush mylist2 1 2 3
(integer) 6

查看列表

127.0.0.1:6379> lrange mylist 0 5
1) "3"
2) "2"
3) "1"
4) "c"
5) "b"
6) "a"

后面指定范圍，可以是負數，負數從后面開始

彈出列表中的元素
左側彈出

127.0.0.1:6379> lpop mylist
"3"

右側彈出

127.0.0.1:6379> rpop mylist2
"3"

獲取列表中的元素數量

127.0.0.1:6379> llen mylist
(integer) 5

lrem 刪除

lset 設置某個index 的值

插入 linsert 列表 before index value

rpoplpush 列表1 列表2 從一個隊列中移除添加到另外一個隊列中

數據結構set

Set不允許出現重復的元素

添加

127.0.0.1:6379> sadd myset a b c
(integer) 3
127.0.0.1:6379> sadd myset a 
(integer) 0

刪除

127.0.0.1:6379> sadd myset 1 2 3
(integer) 3
127.0.0.1:6379> srem myset 1 2
(integer) 2

查看

127.0.0.1:6379> smembers myset
1) "a"
2) "b"
3) "c"
4) "3"

判斷是否存在

127.0.0.1:6379> sismember myset a
(integer) 1
127.0.0.1:6379> sismember myset x
(integer) 0

1表示存在，0表示不存在

差集運算

127.0.0.1:6379> sadd mya1 a b c
(integer) 3
127.0.0.1:6379> sadd myb1 a c 1 2
(integer) 4
127.0.0.1:6379> sdiff mya1 myb1
1) "b"

交集運算

127.0.0.1:6379> sadd mya2 a b c
(integer) 3
127.0.0.1:6379> sadd myb2 a c 1 2
(integer) 4
127.0.0.1:6379> sinter mya2 myb2
1) "a"
2) "c"

并集運算

127.0.0.1:6379> sadd mya3 a b c
(integer) 3
127.0.0.1:6379> sadd myb3 a c 1 2
(integer) 4
127.0.0.1:6379> sunion mya3 myb3
1) "2"
2) "a"
3) "1"
4) "c"
5) "b"

獲取set中的成員數量

127.0.0.1:6379> scard myset
(integer) 4

隨機返回一個

127.0.0.1:6379> srandmember myset
"b"
127.0.0.1:6379> srandmember myset
"c"
127.0.0.1:6379> srandmember myset
"a"

存儲交集、并集、差集到一個新的集合中
sdiffstore sinterstore sunionstore

sorted-set

排序，有個分數

添加

127.0.0.1:6379> zadd mysort 70 zhangsan 80 lisi 90 wangwu
(integer) 3
127.0.0.1:6379> zadd mysort 100 zhangsan
(integer) 0
127.0.0.1:6379> zadd mysort 60 tom
(integer) 1

獲取分數

127.0.0.1:6379> zscore mysort zhangsan
"100"

或成員數量

127.0.0.1:6379> zcard mysort
(integer) 4

刪除

127.0.0.1:6379> zrem mysort tom wangwu
(integer) 2
127.0.0.1:6379> zcard mysort
(integer) 2

范圍查找

127.0.0.1:6379> zadd mysort 85 jack 95 rose
(integer) 2
127.0.0.1:6379> zrange mysort 0 -1
1) "lisi"
2) "jack"
3) "rose"
4) "zhangsan"

顯示分數

127.0.0.1:6379> zrange mysort 0 -1 withscores
1) "lisi"
2) "80"
3) "jack"
4) "85"
5) "rose"
6) "95"
7) "zhangsan"
8) "100"

從大到小

127.0.0.1:6379> zrevrange mysort 0 -1 withscores
1) "zhangsan"
2) "100"
3) "rose"
4) "95"
5) "jack"
6) "85"
7) "lisi"
8) "80"

范圍刪除
zremrangebyrank mysort 0 4

按照分數刪除
zremrangebyscore mysort 80 100

事物

開啟事物
multi

提交事物
exec

回滾事物
discard

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