video view filter

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/filter/strategy/ViewedStrategy.java

@@ -52,6 +52,7 @@ public class ViewedStrategy implements FilterStrategy {
     @Override
     public List<Long> filter(FilterParam param) {
         boolean hit = MapUtils.isNotEmpty(viewExpConfig)
+                && CollectionUtils.isNotEmpty(param.getAbExpCodes())
                 && CollectionUtils.containsAny(viewExpConfig.keySet(), param.getAbExpCodes());
         if (hit) {
             return filterNew(param);