空值修复

community-service/src/main/java/com/tanpu/community/service/CollectionService.java

@@ -6,11 +6,13 @@ import com.tanpu.community.api.enums.DeleteTagEnum;
 import com.tanpu.community.dao.entity.community.CollectionEntity;
 import com.tanpu.community.dao.entity.community.TimesCountEntity;
 import com.tanpu.community.dao.mapper.community.CollectionMapper;
+import org.apache.commons.collections4.CollectionUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
 import java.time.LocalDateTime;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -83,6 +85,9 @@ public class CollectionService {
 
     // 统计多个对象(主题、评论)的数量（点赞、收藏）
     public Map<String, Integer> getCountMapByType(List<String> targetIds, CollectionTypeEnum type) {
+        if (CollectionUtils.isEmpty(targetIds)){
+            return new HashMap<>();
+        }
         LambdaQueryWrapper<CollectionEntity> queryWrapper = new LambdaQueryWrapper<CollectionEntity>().eq(CollectionEntity::getCollectionType, 1)
                 .in(CollectionEntity::getTargetId, targetIds).groupBy(CollectionEntity::getTargetId);
         return collectionMapper.selectCountByTargetIds(queryWrapper).stream()