1.点歌支付防抖

2.点歌记录倒序
3.下单同步保存库存记录

src/main/java/com/chaozhanggui/system/cashierservice/controller/ShopSongController.java

@@ -1,5 +1,6 @@
 package com.chaozhanggui.system.cashierservice.controller;
 
+import com.chaozhanggui.system.cashierservice.annotation.LimitSubmit;
 import com.chaozhanggui.system.cashierservice.entity.dto.SongOrderDTO;
 import com.chaozhanggui.system.cashierservice.service.TbShopSongService;
 import com.chaozhanggui.system.cashierservice.sign.Result;
@@ -80,6 +81,7 @@ public class ShopSongController {
      * @param songOrderDTO 订单信息
      * @return result
      */
+    @LimitSubmit(key = "song_order_pay:#openId")
     @PostMapping
     public Result createOrder(
             @RequestHeader("openId") String openId,