Redis的hash类型数据存储极为重要
hset K V 赋值一个hash 其中V为 （key， value）
127.0.0.1:6379> hset user id 1
(integer) 1127.0.0.1:6379> hset user name z3(integer) 1127.0.0.1:6379>
hget 获取hash值
127.0.0.1:6379> hget user id
"1"127.0.0.1:6379> hget user name"z3"127.0.0.1:6379>
hmset/hmget 一次可以批量存取
127.0.0.1:6379> hmset cumtomer name z3 age 11 id 1
OK127.0.0.1:6379> hmget cumtomer name age id1) "z3"2) "11"3) "1"127.0.0.1:6379>
hgetall 可以取出所有的key-value
127.0.0.1:6379> hgetall cumtomer
1) "name"2) "z3"3) "age"4) "11"5) "id"6) "1"127.0.0.1:6379>
hdel 删除一个值
127.0.0.1:6379> hdel user name
(integer) 1127.0.0.1:6379>
hlen 可以获取长度
127.0.0.1:6379> hlen user
(integer) 1127.0.0.1:6379> hlen cumtomer(integer) 3127.0.0.1:6379>
hexists key 在key里面的某个值的key (判断某个key是否存在)
127.0.0.1:6379> HEXISTS cumtomer id
(integer) 1127.0.0.1:6379> hexists cumtomer name(integer) 1127.0.0.1:6379> hexists cumtomer email(integer) 0127.0.0.1:6379>
hkeys/hvals 取出所有的key/value
127.0.0.1:6379> hkeys cumtomer
1) "name"2) "age"3) "id"127.0.0.1:6379> hvals cumtomer1) "z3"2) "11"3) "1"127.0.0.1:6379>
hincrby/hincrbyfloat
127.0.0.1:6379> HINCRBY cumtomer age 2
(integer) 13127.0.0.1:6379> HINCRBY cumtomer age 2(integer) 15127.0.0.1:6379> HINCRBY cumtomer age 2(integer) 17127.0.0.1:6379> hset cumtomer score 91.5(integer) 1127.0.0.1:6379> HINCRBYFLOAT cumtomer score 0.5"92"127.0.0.1:6379> HINCRBYFLOAT cumtomer score 0.5"92.5"127.0.0.1:6379>
hsetnx 如果不存在则添加，如果存在不改变
127.0.0.1:6379> hsetnx cumtomer age 26
(integer) 0127.0.0.1:6379> hsetnx cumtomer email abc@email.com(integer) 1127.0.0.1:6379>
