Redisson中expire用法

# key在Redis中不存在情况下
RList list2 = redissonClient.getList("myExpiredKey2");
list2.expire(3, TimeUnit.MINUTES); //失效
list2.add("two");


RList list3 = redissonClient.getList("myExpiredKey3");
list3.add("three");
list3.expire(3, TimeUnit.MINUTES); //有效