redis基本操作

了解下未封装过的redis直接操作

redis趣味课程

redis支持的数据类型

string字符串型
list
set
zset(sorted-set)
hash

分别的操作

1. 对于string类型

set server:name "fido"
get server:name

setnx server:name  "test" //error
set server:name "test" //ok
del server:name
setnx server:name 1 //ok
incr server:name //(integer)2

incr: atomic operation

set cor "expire"
ttl cor // -1
expire cor 20
ttl cor
ttl cor //-2 after 20s

2. 对于列表list

lpush friends "milk"
rpush friends "bread"
lrange friends 0, 0
lrange friends 0, 1
lrange friends 1, 1
lrange friends 0, -1
llen friends //2
lpop friends
lrange friends 0, -1
rpop friends
lrange friends 0, -1 // empty list or set

3. 对于无序集合set

sadd super "tom"
sadd super "jim"
sadd super "kimmy"
srem super "jim"
sismember super "tom" // 1
sismember super "jim" // 0
smembers super 
sadd lord "lord"
sunion super lord

4. 对于可排序集合zset(Redis 1.2 introduced Sorted Sets)

zset
zadd val 2 "tom"
zadd val 8 "yiy"
zadd val 1 "pop"
zrange val 0 -1
zrange val 1 2

5. 对于hash

hset user:1000 name "tom"
hset user:1000 age "22"
hgetall
hset user:1000 name "jimmy" age "14"
hgetall
hget user:1000 name
hset user:1000 num 1
hincrby user:1000 num 1
hincrby user:1000 num 10
hdel user:1000 num
hincrby user:1000 num 1