Catalog

Redis type

1 String（ character string ）:

2 List

3 Set

4 hash

5 Ordered set zset

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This article is my previous notes , If I saw it on the Nuggets, it's right , Or myself Cheng Cheng My personal homepage - article - Nuggets This is the only one . If there is anything wrong, you are welcome to point out the problem , I am a little white .

The link of the last article is ：Redis6_ Cheng Cheng is Xiaobai's blog -CSDN Blog , This article is a link to the previous article Redis6_ Cheng Cheng is Xiaobai's blog -CSDN Blog   Of .

If it is springboot If so, please see springboot Create project _ Cheng Cheng is Xiaobai's blog -CSDN Blog , This is from scratch, not finished springboot, Study together ！！！！

 

Redis type

1 String（ character string ）:

APPEND key: Append string , If at present key non-existent , Equivalent to setkey

STRLEN key： Get string length

step ：set views The initial value is 0

incr views : Self increasing 1

Decr views : Self reduction 1

INCRBY views 10： You can set the step , Specify increment

DECRBY views5： You can set the step , Specify decrement

String range range：

GETRANGE key1 0 3( Intercepting string 0 To 3)

Replace ： SETRANGE key2 1 xx( Replace the string starting at the specified position )

Setex ： Set expiration time

Setnx  : Does not exist in setting . Create without , There is a prompt that the creation failed

Mset : Set multiple values at the same time

Mget ： Get multiple values at the same time

Msetnx : It's an atomic operation , Or make it together , Or fail together

Getset ： First get Again set If it doesn't exist , Then return to nil; If it exists, get the original value and set the new value

Getrange< The starting position >< End position >

Setrange< The starting position >

2 List

Lpush/rpush ... From the left / Insert one or more values... To the right

Lpop/rpop From the left / Spit out a value on the right . Value at key at , The value of the light key

Rpoplush from key1 Spit a value on the right side of the list , Insert into key2 To the left of the list

Lrange Get elements by index （ From left to right ）

Lindex Get elements by index

Llen Get list length

Linsertbefore stay value Insert... At the back newvalue Insert value

Lrem Delete from the left n individual value（ From left to right ）

Lset take key Subscript to be index Replace the value of with value

3 Set

Sadd Put one or more value Add to key in , Existing neglect

Smembers Take out key Value

Sismember Judgment set key Does it contain value value

Srem... Delete an element in the collection

Scard Returns the number of sets

Srem Spit out a value at random

Srandmember Random spit n Values will not be deleted

Smovevalue Move values in a set from one set to another

Sinter Returns the intersection element of two sets

Sunion Returns the union element of two sets

Sdiff Returns the difference set element of two sets （key1 Medium , barring key2 Of ）

4 hash

Hset to key Medium filed Key assignment value

Hget from key in field Take out value

Hmset... Batch settings hash value

Hexists View the hash table key in , Define a domain for field Whether there is

Hkeys List the hash Gather all field

Hvals List the hash All of the collection value

Hincrby Hash table key In the domain filed Value increment of

Hsetnx Hash table key Medium field Is set to value. And only if the domain field non-existent

5 Ordered set zset

Zadd... Put one or more member Elements and score Values are added to the order key in

Zrange[withscores] Return to ordered set key The subscript is in start stop The element band between withscores, You can return the methods together to the result set

Zrangebyscore key minmax[withscores][limit offset count] Return to ordered set key All in score The value is between min and max Among the members of the ordered collection, the members press score Increasing （ From small to large ） Sort

Zrevrangebyscore key maxmin[withscores][limit offset count] From big to small

Zincrby For the elements scores Plus the increment

Zrem Delete the collection , The element that specifies the value

Zcount Count the set , Number of elements in fractional interval

Zrank Returns the rank of the value in the collection , from 0 Start

 

 

This article is my previous notes , If I saw it on the Nuggets, it's right , Or myself Cheng Cheng My personal homepage - article - Nuggets This is the only one . If there is anything wrong, you are welcome to point out the problem , I am a little white .

The link of the last article is ：Redis6_ Cheng Cheng is Xiaobai's blog -CSDN Blog , This article is a link to the previous article Redis6_ Cheng Cheng is Xiaobai's blog -CSDN Blog   Of .

If it is springboot If so, please see springboot Create project _ Cheng Cheng is Xiaobai's blog -CSDN Blog , This is from scratch, not finished springboot, Study together ！！！！