Redis 命令 - Hashs
HDEL key field [field ...]
Delete one or more hash fields
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 0
127.0.0.1:6379> HEXISTS book.1 title
(integer) 1
127.0.0.1:6379> HDEL book.1 title
(integer) 1
127.0.0.1:6379> HEXISTS book.1 title
(integer) 0
More: http://redis.io/commands/hdel, http://www.redis.cn/commands/hdel.html
HEXISTS key field
Determine if a hash field exists
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 1
127.0.0.1:6379> HEXISTS book.1 title
(integer) 1
127.0.0.1:6379> HEXISTS book.1 title2
(integer) 0
127.0.0.1:6379> HEXISTS book.2 title
(integer) 0
More: http://redis.io/commands/hexists, http://www.redis.cn/commands/hexists.html
HGET key field
Get the value of a hash field
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 0
127.0.0.1:6379> HSET book.1 author Mr.404
(integer) 1
127.0.0.1:6379> HGET book.1 title
"helloworld"
127.0.0.1:6379> HGET book.1 author
"Mr.404"
More: http://redis.io/commands/hget, http://www.redis.cn/commands/hget.html
HGETALL key
Get all the fields and values in a hash
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 1
127.0.0.1:6379> HSET book.1 author Mr.404
(integer) 1
127.0.0.1:6379> HGETALL book.1
1) "title"
2) "helloworld"
3) "author"
4) "Mr.404"
More: http://redis.io/commands/hgetall, http://www.redis.cn/commands/hgetall.html
HINCRBY key field increment
Increment the integer value of a hash field by the given number
127.0.0.1:6379> HSET book.1 price 30
(integer) 1
127.0.0.1:6379> HINCRBY book.1 price 10
(integer) 40
127.0.0.1:6379> HINCRBY book.1 price -5
(integer) 35
More: http://redis.io/commands/hincrby, http://www.redis.cn/commands/hincrby.html
HINCRBYFLOAT key field increment
Increment the float value of a hash field by the given amount
127.0.0.1:6379> HSET book.1 price 30
(integer) 0
127.0.0.1:6379> HINCRBYFLOAT book.1 price 9.99
"39.99"
127.0.0.1:6379> HINCRBYFLOAT book.1 price -4.5
"35.49"
More: http://redis.io/commands/hincrbyfloat, http://www.redis.cn/commands/hincrbyfloat.html
HKEYS key
Get all the fields in a hash
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 0
127.0.0.1:6379> HSET book.1 author Mr.404
(integer) 0
127.0.0.1:6379> HKEYS book.1
1) "title"
2) "author"
More: http://redis.io/commands/hkeys, http://www.redis.cn/commands/hkeys.html
HLEN key
Get the number of fields in a hash
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 0
127.0.0.1:6379> HSET book.1 author Mr.404
(integer) 0
127.0.0.1:6379> HLEN book.1
(integer) 2
More: http://redis.io/commands/hlen, http://www.redis.cn/commands/hlen.html
HMGET key field [field ...]
Get the values of all the given hash fields
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 0
127.0.0.1:6379> HSET book.1 author Mr.404
(integer) 0
127.0.0.1:6379> HMGET book.1 author title
1) "Mr.404"
2) "helloworld
More: http://redis.io/commands/hmget, http://www.redis.cn/commands/hmget.html
HMSET key field value [field value ...]
Set multiple hash fields to multiple values
127.0.0.1:6379> HMSET book.1 title helloworld author Mr.404
OK
127.0.0.1:6379> HGET book.1 title
"helloworld"
127.0.0.1:6379> HGET book.1 author
"Mr.404"
More: http://redis.io/commands/hmset, http://www.redis.cn/commands/hmset.html
HSET key field value
Set the string value of a hash field
127.0.0.1:6379> HSET book.1 title helloworld
(integer) 0
127.0.0.1:6379> HSET book.1 author Mr.404
(integer) 1
127.0.0.1:6379> HGET book.1 title
"helloworld"
127.0.0.1:6379> HGET book.1 author
"Mr.404"
More: http://redis.io/commands/hset, http://www.redis.cn/commands/hset.html
HSETNX key field value
Set the value of a hash field, only if the field does not exist
127.0.0.1:6379> HSETNX book.1 title helloworld
(integer) 1
127.0.0.1:6379> HSETNX book.1 title hellopython
(integer) 0
127.0.0.1:6379> HGET book.1 title
"helloworld"
More: http://redis.io/commands/hsetnx, http://www.redis.cn/commands/hsetnx.html
HSTRLEN key field
Get the length of the value of a hash field
More: http://redis.io/commands/hstrlen
HVALS key
Get all the values in a hash
127.0.0.1:6379> HSETNX book.1 title helloworld
(integer) 0
127.0.0.1:6379> HSET book.1 author Mr.404
(integer) 1
127.0.0.1:6379> HVALS book.1
1) "helloworld"
2) "Mr.404"
More: http://redis.io/commands/hvals, http://www.redis.cn/commands/hvals.html
HSCAN key cursor [MATCH pattern] [COUNT count]
Incrementally iterate hash fields and associated values
More: http://redis.io/commands/hscan, http://www.redis.cn/commands/hscan.html
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