redis命令参考(五) Hashes

哈希表

Hashes are maps between string fields and string values, so they are the perfect data type to represent objects (eg: A User with a number of fields like name, surname, age, and so forth):

一、HSET

 

二、HGET

 

三、HGETALL

> hset jimliang age 20
(integer) 1

> hset jimliang experience 4year
(integer) 1

> hset jimliang email jimzyliang@wula.com
(integer) 1

> hgetall jimliang   
1) "age"
2) "20"
3) "experience"
4) "4year"
5) "email"
6) "jimzyliang@wula.com"

 

四、HINCRBY

 

五、HDEL

> hincrby jimliang age 5  //自增5个，是原子操作哦，即更改时会锁定
(integer) 25
> hget jimliang age
"25"
> hdel jimliang age   //删除 哈希表jimliang中的 age 属性
(integer) 1
> hget jimliang age
(nil)