下单时对设备上锁

smart-switch-ruoyi/smart-switch-common/src/main/java/com/ruoyi/common/core/redis/enums/RedisLockKey.java

@@ -21,7 +21,8 @@ public enum RedisLockKey {
     ADD_DEVICE("add_device", "创建设备"),
     ADD_TIME_BILL("add_time_bill", "创建时长订单"),
     PAY_BILL("pay_bill", "支付订单"),
-    PREPAY_DEPOSIT("prepay_deposit", "支付押金");
+    PREPAY_DEPOSIT("prepay_deposit", "支付押金"),
+    ADD_RECHARGE_ORDER("add_recharge_order", "创建充值订单");
 
 
     private final String key;

smart-switch-service/src/main/java/com/ruoyi/ss/transactionBill/service/impl/TransactionBillServiceImpl.java

@@ -228,6 +228,12 @@ public class TransactionBillServiceImpl implements TransactionBillService, After
 
     @Override
     public String addOrder(RechargeBO bo) {
+        ServiceUtil.assertion(bo == null || bo.getDevice() == null || bo.getDevice().getDeviceId() == null, "设备不存在");
+        Long deviceId = bo.getDevice().getDeviceId();
+
+        // 加锁
+        ServiceUtil.assertion(!redisLock.lock(RedisLockKey.ADD_RECHARGE_ORDER, deviceId), "当前使用该设备人数较多，请稍后再试");
+        try {
             // 拉取设备信息
             deviceService.pullDeviceInfo(Collections.singletonList(bo.getDevice().getDeviceId()));
 
@@ -244,6 +250,10 @@ public class TransactionBillServiceImpl implements TransactionBillService, After
             // 加入延时队列，超时取消
             billDelayedManager.add(order.getBillNo(), order.getExpireTime().getTime());
             return order.getBillNo();
+        } finally {
+            // 解锁
+            redisLock.unlock(RedisLockKey.ADD_RECHARGE_ORDER, deviceId);
+        }
     }
 
     // 处理充值服务费