商品行折扣变更(折扣需在(0,1]范围)

src/custom/restcontroller/webmanage/sale/order/OrderItems.java

@@ -407,6 +407,10 @@ public class OrderItems extends Controller {
             return getErrReturnObject().setErrMsg("该订单不存在").toString();
         }
 
+        if(!(discountrate.compareTo(BigDecimal.ZERO)>0 && discountrate.compareTo(new BigDecimal(1))<=0)){
+            return getErrReturnObject().setErrMsg("折扣必须在0-1之间").toString();
+        }
+
         //通过版本更新订单表头数据
         beans.order.Order.updateOrderWithVersion(this);