fix：同一张券可以给同一个用户发多张

@@ -247,16 +247,16 @@ public class CouponServiceImpl implements ICouponService,IBusinessExportService{
             LOGGER.info("sendCoupon failed with uid size too large, size is {}", uidList.size());
             return new ApiResponse(201, "单次至多输入50个uid", null);
         }
-        Set<Integer> uidSet = new HashSet<>();
+        List<Integer> uidSendList = new ArrayList<>();
         for(String uid: uidList){
             if(!NumberUtils.isNumber(uid)){
                 LOGGER.info("sendCoupon failed with uid is not number, uid is {}", uid);
                 return new ApiResponse(201, "uid必须为数字", null);
             }
-            uidSet.add(Integer.valueOf(uid));
+            uidSendList.add(Integer.valueOf(uid));
         }
         //(3) 校验券 并通过mq发券
-        return sendCouponByMQ(req.getCouponToken(), uidSet);
+        return sendCouponByMQ(req.getCouponToken(), uidSendList);
     }
 
     @Override
@@ -280,7 +280,7 @@ public class CouponServiceImpl implements ICouponService,IBusinessExportService{
         return sendCouponByMQ(couponToken, uidSet);
     }
 
-    private ApiResponse sendCouponByMQ(String couponToken, Set<Integer> uidSet){
+    private ApiResponse sendCouponByMQ(String couponToken, List<Integer> uidList){
         // ufo券校验 1.是否有效 2.可用数量是否大于所需发送人数
         Coupon coupon = couponMapper.selectValidByToken(couponToken);
         if(coupon == null){
@@ -292,13 +292,13 @@ public class CouponServiceImpl implements ICouponService,IBusinessExportService{
             return new ApiResponse(201, "该券已过期 !" , null);
         }
         int availableNum = coupon.getCouponNum() - coupon.getSendNum();
-        if(uidSet.size() > availableNum){
+        if(uidList.size() > availableNum){
             LOGGER.info("sendCoupon failed with couponNum isn't enough, uidSize is {}, availableCouponNum is {}", uidSet.size(), availableNum);
             return new ApiResponse(201, "uid数量大于当前券可用数量："+ availableNum + "!" , null);
         }
         // 发券
         Set<Integer> failUidSet = new HashSet<>();
-        for(Integer uid : uidSet){
+        for(Integer uid : uidList){
             try {
                 JSONObject sendCouponParam  = new JSONObject();
                 sendCouponParam.put("uid", uid);