redis3.0 Redis.clients.jedis.exceptions.JedisDataException:WRONGTYPE Operation against a key Holdin

Synchronizing Redis Data Updates students learn the current collection and number of teacher topics
         Long addresultspecials=redisdao.getjediscluster (). Zadd (Rediskey.rela_ userfamous_specialzset+ ":" +studentid+ ":" +teacherid,system.currenttimemillis ()/1000,string.valueof (SpecialId));
        Redisdao.getjediscluster (). Incrby (rediskey.rela_userfamous_specialnum+ ": +studentid+": "+teacherId, Addresultspecials);

Abnormal:

Redis.clients.jedis.exceptions.JedisDataException:WRONGTYPE Operation against a key holding the wrong kind of value

Reason: A method that does not belong to a key storage type is used. A key is stored in set you use Zadd to operate set without this method so throw this exception redis if the key does not exist when it is added to a node, it will find all nodes. If key already exists, it must update the key regardless of the node.