src/main/java/cc/mrbird/febs/mall/service/impl/AdminHappyActivityServiceImpl.java
@@ -159,7 +159,11 @@
                Map<Long, HappyActivityCategory> categoryMap = happyActivityCategories.stream().collect(Collectors.toMap(HappyActivityCategory::getId, happyActivityCategory -> happyActivityCategory));
                for (HappyActivity happyActivity : records){
                    happyActivity.setCategoryName(categoryMap.get(happyActivity.getCategoryId()).getName());
                    if(ObjectUtil.isNotNull(happyActivity.getCategoryId())
                        && categoryMap.containsKey(happyActivity.getCategoryId())
                    ){
                        happyActivity.setCategoryName(categoryMap.get(happyActivity.getCategoryId()).getName());
                    }
                }
            }
        }