答主列表，登录后，随机排序

app/Http/Controllers/Api/BloggerController.php

@@ -202,7 +202,7 @@ class BloggerController extends BaseController
                 $redis_ids = $list_ids;
             }
             $redis_ids = array_unique($redis_ids);
-            Redis::set($user_id_redis,json_encode($redis_ids),1800);
+            Redis::setex($user_id_redis,1800,json_encode($redis_ids));
         }
 
         return $this->success($list);