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SETEX key seconds value

相关命令

Available since 2.0.0.

时间复杂度： O(1)

Set key to hold the string value and set key to timeout after a given number of seconds. This command is equivalent to executing the following commands:

  1. SET mykey value
  2. EXPIRE mykey seconds

SETEX is atomic, and can be reproduced by using the previous two commands inside an MULTI / EXEC block. It is provided as a faster alternative to the given sequence of operations, because this operation is very common when Redis is used as a cache.

An error is returned when seconds is invalid.

返回值

Simple string reply

例子

redis> SETEX mykey 10 "Hello" 

  1. OK

redis> TTL mykey 

  1. (integer) 10

redis> GET mykey 

  1. "Hello"
redis>

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