Hasehes
Redis hash是一个string类型的field和value映射表。hash特别适合于存储对象。相对存成string，现在存为一个hash类型中可以占用更少的内存。且可以更方便的存储整个对象。
hset
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redis 127.0.0.1:6379> hset user:001 name michael(integer) 1redis 127.0.0.1:6379> hget user:001 name"michael" |
hsetnx
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redis 127.0.0.1:6379> hsetnx user:003 name jason(integer) 1redis 127.0.0.1:6379> hsetnx user:003 name tom(integer) 0 -- set failed
redis 127.0.0.1:6379> hget user:003 name"jason" -- value is not changed.
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hmset/hmget
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redis 127.0.0.1:6379> hmset user:004 name michael age 29 sex 1OKredis 127.0.0.1:6379> hget user:004 name"michael"redis 127.0.0.1:6379> hget user:004 age"29"redis 127.0.0.1:6379> hget user:004 sex"1"redis 127.0.0.1:6379> hmget user:004 name age sex1) "michael"
2) "29"
3) "1"
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hincrby
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redis 127.0.0.1:6379> hincrby user:004 age 5(integer) 34redis 127.0.0.1:6379> hget user:004 age"34" |
hexists
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redis 127.0.0.1:6379> hexists user:004 age(integer) 1redis 127.0.0.1:6379> hexists user:004 address(integer) 0 |
hlen
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redis 127.0.0.1:6379> hlen user:004(integer) 3 |
hdel
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redis 127.0.0.1:6379> hdel user:004 age(integer) 1redis 127.0.0.1:6379> hexists user:004 address(integer) 0redis 127.0.0.1:6379> hget user:004 age(nil) |
hkeys hvals hgetall
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redis 127.0.0.1:6379> hkeys user:0041) "name"
2) "sex"
redis 127.0.0.1:6379> hvals user:0041) "michael"
2) "1"
redis 127.0.0.1:6379> hgetall user:0041) "name"
2) "michael"
3) "sex"
4) "1"
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本文转自 yuanzhitang 51CTO博客，原文链接：http://blog.51cto.com/yuanzhitang/1783356，如需转载请自行联系原作者