修改退款问题

xx-order/xx-order-server/src/main/java/com/xxfc/platform/order/biz/OrderAccountBiz.java

@@ -650,17 +650,20 @@ public class OrderAccountBiz extends BaseBiz<OrderAccountMapper,OrderAccount> {
         ).map(OrderAccountDeduction::getAmount).reduce(BigDecimal.ZERO, BigDecimal::add);
 
         BigDecimal toExtendDeduction = oad.getOriginOrderAmount().subtract(toOdDeduction);
+        BigDecimal residueOrderAmount = oad.getOriginOrderAmount().subtract(toOdDeduction);
 
         //如果订单原款 - 扣费 小于零，则押金有额外扣费
         if(toExtendDeduction.compareTo(BigDecimal.ZERO) < 0) {
-            //置反
+            //置反 去用押金抵扣
             toExtendDeduction = BigDecimal.ZERO.subtract(toExtendDeduction);
+            residueOrderAmount = BigDecimal.ZERO;
         }else {
             //否则 则置为零
             toExtendDeduction = BigDecimal.ZERO;
         }
 
         oad.setDepositAmount(oad.getOriginDepositAmount().subtract(toDeduction).subtract(toExtendDeduction));
+        oad.setOrderAmount(residueOrderAmount);
     }
 
     private void handleViolateDetail(DeductionTypeEnum dte, OrderAccountDetail oad, DedDetailDTO vio, CancelStartedVO csv) {