Set数据结构

SADD 添加元素

有去重效果，value无重复

Redis Command

 127.0.0.1:6379> SADD student:001 1 2 3 4 5 1 3 4
 (integer) 5

Java

    redisTemplate.opsForSet().add("student:001","name","age","name","id");

SMEMBERS 查看key

根据key获取value值

Redis Command

 127.0.0.1:6379> SMEMBERS student:001 
 1) "1"
 2) "2"
 3) "3"
 4) "4"
 5) "5"

Java

    redisTemplate.opsForSet().members("student:001");

SISMEMBER 是否存在value

查询是否存在value值

Redis Command

 127.0.0.1:6379> SISMEMBER student:001 1
 (integer) 1

Java

    redisTemplate.opsForSet().isMember("student:001","name");

SREM 删除

Redis Command

 127.0.0.1:6379> SREM student:001 1
 (integer) 1

Java

    redisTemplate.opsForSet().remove("student:001","name");

SCARD 获取元素个数

Redis Command

 127.0.0.1:6379> SCARD student:001
 (integer) 5

Java

    redisTemplate.opsForSet().size("student:001");

SPOP 随机删除

Redis Command

 127.0.0.1:6379> SPOP student:001 1
 (1) 2

Java

    redisTemplate.opsForSet().pop("student:001",2);