fix: scc流程导出佐证材料/null

laws-modules/src/main/java/com/jero/modules/activiti/process/standardComplianceCheck/service/impl/ProcessStandardComplianceCheckServiceImpl.java

@@ -594,7 +594,10 @@ public class ProcessStandardComplianceCheckServiceImpl extends ServiceImpl<Proce
             // 翻译评估结果和佐证材料字段
             data.parallelStream().forEach(item -> {
                 item.setResult(excelUtils.translateDict("evaluation_result", item.getResult(), listDict));
-                item.setMaterial("佐证材料/" + excelUtils.translateDictValue("id", "file_name", "oss_file", item.getMaterial(), listDict));
+                String material = excelUtils.translateDictValue("id", "file_name", "oss_file", item.getMaterial(), listDict);
+                if (StrUtil.isNotBlank(material)) {
+                    item.setMaterial("佐证材料/" + material);
+                }
             });
             Workbook workbook = ExcelExportUtil
                     .exportExcel(exportParams, WithoutDistributeExcelTemplate.class, data);