Redis one or two things-set expiration time, show key as folder display cache data

When using Redis, there are times when there is a lot of data back, and the same classification, the same ID

Can be set using Hset, so there is a large class and a small classification and a value composition

However, Hset cannot set the expiration time

Expiration time can only be set on set

             1  Adding cache to REDIS 2             jedisclient.set (Redis_item_key + ":" + itemId + ":" + Item_ KEY, Jsonutils.objecttojson (item)); 3              Set the expiration time for KEY 4             jedisclient.expire (Redis_item_key + ":" + itemId + ":" + Item_key, Item_expire_time);

So this setting is displayed as a folder when viewed, so it's easy to see

Redis one or two things-set expiration time, show key as folder display cache data