layout | title | category | tags | keywords | description |
---|---|---|---|---|---|
post |
redis 6:redis hash 命令操作 |
技术 |
Redis |
redis之hash命令的基本操作 |
{:toc}
HDEL key field [field ...]
summary: Delete one or more hash fields
since: 2.0.0
127.0.0.1:6379> HDEL hash1 name
(integer) 1
HEXISTS key field
summary: Determine if a hash field exists
since: 2.0.0
127.0.0.1:6379> HEXISTS hash1 name
(integer) 0 #不存在返回0
127.0.0.1:6379> HEXISTS hash1 name2
(integer) 1 #存在返回1
HGET key field
summary: Get the value of a hash field
since: 2.0.0
127.0.0.1:6379> HGET hash1 name2
"name22"
HGETALL key
summary: Get all the fields and values in a hash
since: 2.0.0
127.0.0.1:6379> HGETALL hash1
1) "name" #field名
2) "jing" #value值
3) "name2" #field名
4) "jing2" #value值
5) "name3" #field名
6) "jing3" #value值
HINCRBY key field increment
summary: Increment the integer value of a hash field by the given number
since: 2.0.0
HINCRBYFLOAT key field increment
summary: Increment the float value of a hash field by the given amount
since: 2.6.0
127.0.0.1:6379> HSET hash1 num1 10
(integer) 1
127.0.0.1:6379> HINCRBY hash1 num1 2
(integer) 12
HKEYS key
summary: Get all the fields in a hash
since: 2.0.0
127.0.0.1:6379> HKEYS hash1
1) "name2"
2) "name3"
3) "num1"
HLEN key
summary: Get the number of fields in a hash
since: 2.0.0
127.0.0.1:6379> HLEN hash1
(integer) 3
HMGET key field [field ...]
summary: Get the values of all the given hash fields
since: 2.0.0
127.0.0.1:6379> HMGET hash1 name2 num1
1) "name22"
2) "12"
HMSET key field value [field value ...]
summary: Set multiple hash fields to multiple values
since: 2.0.0
127.0.0.1:6379> HMSET hash1 num2 12 name4 jing4 num3 33
OK
127.0.0.1:6379> HGETALL hash1
1) "name2"
2) "name22"
3) "name3"
4) "name33"
5) "num1"
6) "12"
7) "num2"
8) "12"
9) "name4"
10) "jing4"
11) "num3"
12) "33"
HSET key field value
summary: Set the string value of a hash field
since: 2.0.0
HSETNX key field value
summary: Set the value of a hash field, only if the field does not exist
since: 2.0.0
HVALS key
summary: Get all the values in a hash
since: 2.0.0
127.0.0.1:6379> HVALS hash1
1) "name22"
2) "name33"
3) "12"
4) "12"
5) "jing4"
6) "33"