退款bugfix

yongqi-xinrenli/src/main/java/com/yongqi/xinrenli/service/impl/DbOrderServiceImpl.java

@@ -530,9 +530,17 @@ public class DbOrderServiceImpl implements IDbOrderService {
         if (ObjectUtils.isEmpty(order)) {
             return R.fail("订单不存在");
         }
-        String refundNo = CodeUtils.createSerialNumber("TK");
+        if (order.getStatus() == OrderStatusEnum.REFUNDED.getCode()) {
+            return R.fail("此订单已退款，请勿重复提交");
+        }
+        if (order.getPayAmount().compareTo(refundAmount) < 0) {
+            return R.fail("退款金额大于已支付金额，请重新填写");
+        }
+        if (StringUtils.isEmpty(order.getRefundNo())) {
+            String refundNo = CodeUtils.createSerialNumber("TK");
+            order.setRefundNo(refundNo);
+        }
         // 修改订单
-        order.setRefundNo(refundNo);
         order.setRefundAmount(refundAmount);
         baseMapper.updateById(order);
         // 组装退款参数
@@ -540,13 +548,13 @@ public class DbOrderServiceImpl implements IDbOrderService {
         request.setTransactionId(order.getWxOrderNo());
         request.setTotalFee(order.getPayAmount().multiply(BigDecimal.valueOf(100L)).intValue());
         request.setRefundFee(refundAmount.multiply(BigDecimal.valueOf(100L)).intValue());
-        request.setOutRefundNo(refundNo);
+        request.setOutRefundNo(order.getRefundNo());
         request.setNotifyUrl(refundNotifyUrl);
         // 发起退款
         try {
             WxPayRefundResult refund = wxPayService.refund(request);
             if ("SUCCESS".equals(refund.getReturnCode())) {
-                return R.ok("退款申请成功");
+                return R.ok("退款成功");
             }
         } catch (WxPayException e) {
             log.error("退款报错：{}", e.getMessage());