redis localhost:6379> sadd userlist 1 (integer) 1 redis localhost:6379> sadd userlist 2 (integer) 1 redis localhost:6379> sadd userlist 3 (integer) 1 redis localhost:6379> sadd userlist 4 (integer) 1 redis localhost:6379> sadd userlist 5 (integer) 1 redis localhost:6379> set score:user:1 20 OK redis localhost:6379> set score:user:2 15 OK redis localhost:6379> set score:user:3 11 OK redis localhost:6379> set score:user:4 24 OK redis localhost:6379> set score:user:5 15 OK redis localhost:6379> set age:user:1 29 OK redis localhost:6379> set age:user:2 35 OK redis localhost:6379> set age:user:3 25 OK redis localhost:6379> set age:user:4 31 OK redis localhost:6379> set age:user:5 27 OK
如上redis结构,如何实现sort的时候根据score倒排序,如果score相等(上面user2和user5的score相等),那么按照age正排序?
期望最后得到的userid排序结果为:
4 1 5 2 3
请问各位:这样的命令该如何写,或者有没有比较好的解决方案
你可以考虑下sorted set,set只是集合,本身是无排序的,而sorted set是支持排序的,根据score
按分数对用户列表进行排序:user:* desc
维护两个zset
按age排序: zadd sort_user_age username age
按score排序: zadd sort_user_score username score
然后把用户的信息以string方式保存,按照某种排序方式然后去mget.
想要排序肯定要用zadd,但是你说的这个比较复杂了,实现得想想