src/main/java/com/ruoyi/production/service/impl/ProductBomServiceImpl.java
@@ -137,6 +137,7 @@ ProductBom bom,ProductModel rootModel, Map<String, Long> processMap, List<BomImportErrorDto> errorList ) { ProductStructure rootNode = new ProductStructure(); rootNode.setBomId(bom.getId()); rootNode.setParentId(null); // 顶层没有父节点