feature：客户信息导入校验单表内校验重复项

order-management-consumer/src/main/java/com/dxhy/order/consumer/modules/order/controller/BuyerController.java

@@ -268,12 +268,11 @@ public class BuyerController {
             }
             List<BuyerEntity> buyerEntityList = new ArrayList<>();
             Collection<List<BuyerImportExcel>> values = importExcelList.stream().collect(Collectors.groupingBy(t -> t.getGhfBm())).values();
-            values.stream().map(t->{
-                if(t.size() > 1){
-                   return  R.error("购方编码存在重复项!");
+            for (List<BuyerImportExcel> value : values) {
+                if(value.size() > 1){
+                    return  R.error("表内购方编码存在重复项，请检查!");
                 }
-                return t;
-            });
+            }
             for (BuyerImportExcel buyerImportExcel : importExcelList) {
                 BuyerEntity buyerEntity = new BuyerEntity();
                 buyerEntity.setPurchaseName(buyerImportExcel.getGhfMc());