fix(service): 修复空列表处理避免空指针异常

buhuazhen

2026-04-22 252766e40f844145579317509cf5136a8e6d2de4

 src/main/java/com/ruoyi/warehouse/service/DocumentClassificationService.java

@@ -16,5 +16,5 @@

    boolean deleteByIds(List<Long> ids);

    List<DocumentClassificationTreeDto> selectDocumentClassificationList(DocumentClassificationDto documentClassificationDto);
    List<DocumentClassificationTreeDto> selectDocumentClassificationList();
}