bug：管道导入附件出现字符串null

amos-boot-system-tzs/amos-boot-module-jg/amos-boot-module-jg-biz/src/main/java/com/yeejoin/amos/boot/module/jg/biz/service/impl/DataDockServiceImpl.java

@@ -1752,7 +1752,7 @@ public class DataDockServiceImpl {
                 .setProjectContraptionNo(String.valueOf(equipInfo.get("PROJECT_CONTRAPTION_NO")))
                 .setProductPhoto(toJSONString(equipInfo.get("PRODUCT_PHOTO")))
                 .setProductQualificationCertificate(toJSONString(equipInfo.get("PRODUCT_QUALIFICATION_CERTIFICATE")))
-                .setOtherAccessories(toJSONString(equipInfo.get("OTHER_ACCESSORIES")))
+                .setOtherAccessories(ValidationUtil.isEmpty(equipInfo.get("OTHER_ACCESSORIES")) ? null : toJSONString(equipInfo.get("OTHER_ACCESSORIES")))
                 .setPipelineLength(equLists.stream().mapToDouble(item -> Double.parseDouble(item.getPipeLength())).sum())
                 .setInspectUnitCreditCode(inspectUnitCreditCode)
                 .setInspectUnitName(inspectUnitName)