diff --git a/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/PayService.java b/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/PayService.java
index 1343b61..4d170a4 100644
--- a/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/PayService.java
+++ b/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/PayService.java
@@ -6,6 +6,7 @@ import java.util.List;
 import com.ruoyi.bst.pay.domain.Pay;
 import com.ruoyi.bst.pay.domain.PayQuery;
 import com.ruoyi.bst.pay.domain.PayVO;
+import com.ruoyi.bst.pay.domain.dto.PayRefundDTO;
 import com.ruoyi.bst.pay.domain.vo.DoPayVO;
 import com.ruoyi.bst.refund.domain.RefundVO;
 
@@ -98,4 +99,11 @@ public interface PayService
      * 处理退款成功
      */
     int handleRefundSuccess(RefundVO refund);
+
+    /**
+     * 退款
+     * @param dto
+     * @return
+     */
+    int refund(PayRefundDTO dto);
 }
diff --git a/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/impl/PayServiceImpl.java b/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/impl/PayServiceImpl.java
index 316ab16..1f0b2b1 100644
--- a/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/impl/PayServiceImpl.java
+++ b/ruoyi-service/src/main/java/com/ruoyi/bst/pay/service/impl/PayServiceImpl.java
@@ -54,8 +54,7 @@ import lombok.extern.slf4j.Slf4j;
  */
 @Service
 @Slf4j
-public class PayServiceImpl implements PayService
-{
+public class PayServiceImpl implements PayService {
     @Autowired
     private PayMapper payMapper;
 
@@ -90,8 +89,7 @@ public class PayServiceImpl implements PayService
      * @return 支付订单
      */
     @Override
-    public PayVO selectPayById(Long id)
-    {
+    public PayVO selectPayById(Long id) {
         return payMapper.selectPayById(id);
     }
 
@@ -102,8 +100,7 @@ public class PayServiceImpl implements PayService
      * @return 支付订单
      */
     @Override
-    public List<PayVO> selectPayList(PayQuery pay)
-    {
+    public List<PayVO> selectPayList(PayQuery pay) {
         return payMapper.selectPayList(pay);
     }
 
@@ -114,8 +111,7 @@ public class PayServiceImpl implements PayService
      * @return 结果
      */
     @Override
-    public int insertPay(Pay pay)
-    {
+    public int insertPay(Pay pay) {
         pay.setCreateTime(DateUtils.getNowDate());
         pay.setNo(String.valueOf(SnowFlakeUtil.newId()));
         return payMapper.insertPay(pay);
@@ -128,8 +124,7 @@ public class PayServiceImpl implements PayService
      * @return 结果
      */
     @Override
-    public int updatePay(Pay pay)
-    {
+    public int updatePay(Pay pay) {
         return payMapper.updatePay(pay);
     }
 
@@ -140,8 +135,7 @@ public class PayServiceImpl implements PayService
      * @return 结果
      */
     @Override
-    public int deletePayByIds(Long[] ids)
-    {
+    public int deletePayByIds(Long[] ids) {
         return payMapper.deletePayByIds(ids);
     }
 
@@ -152,8 +146,7 @@ public class PayServiceImpl implements PayService
      * @return 结果
      */
     @Override
-    public int deletePayById(Long id)
-    {
+    public int deletePayById(Long id) {
         return payMapper.deletePayById(id);
     }
 
@@ -199,7 +192,7 @@ public class PayServiceImpl implements PayService
     private int updateChannelNo(String no, Object payParams) {
         if (StringUtils.isBlank(no) || payParams == null) {
             return 0;
-        } 
+        }
         // TODO 获取渠道订单号
 
         return 1;
@@ -217,7 +210,7 @@ public class PayServiceImpl implements PayService
     }
 
     private PayVO selectOne(PayQuery query) {
-        PageHelper.startPage(1,1);
+        PageHelper.startPage(1, 1);
         List<PayVO> payList = this.selectPayList(query);
         return CollectionUtils.firstElement(payList);
     }
@@ -391,6 +384,7 @@ public class PayServiceImpl implements PayService
 
     /**
      * 刷新支付结果
+     *
      * @param no 支付单号
      */
     @Override
@@ -468,7 +462,7 @@ public class PayServiceImpl implements PayService
         }
     }
 
-    
+
     @Override
     public int refund(PayRefundDTO dto) {
         // 校验订单
@@ -533,3 +527,4 @@ public class PayServiceImpl implements PayService
 
         return result == null ? 0 : result;
     }
+}