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:
SET mykey value
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
例子
redis>
SETEX mykey 10 "Hello"
OKredis> TTL mykey
(integer) 10redis> GET mykey
"Hello"