recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/RecommendService.java

@@ -457,7 +457,7 @@ public class RecommendService {
                         //有mid
                         String key = String.format(MID_GENERATE_CACHE_KEY, param.getMid());
                         String value = midRedisTemplate.opsForValue().get(key);
-                        if (Objects.isNull(value) || Long.parseLong(value) > startOfDay) {
+                        if (Objects.isNull(value) || Objects.equals("", value) || Long.parseLong(value) > startOfDay) {
                             //创建时间大于当天，则为新用户
                             isNoneUserRisk = true;
                         }