ABP lock锁的使用

/// <summary>
    /// 位置与轨迹应用服务层
    /// </summary>
    public class PositionAndTrajectory : FinanceAppServiceBase, IPositionAndTrajectory
    {
        #region 依赖注入
        private readonly AsyncLock _Mutex = new AsyncLock();//锁

        /// <summary>
        /// 依赖注入
        /// </summary>
        public PositionAndTrajectory()
        {
        }
        #endregion
        
        /// <summary>
        /// 需要限制的方法
        /// </summary>
        public async Task<bool> GetEveryDayLoginToken()
        {
            try
            {
                return true;
            }
            catch (Exception e)
            {
                 throw new UserFriendlyException(e.Message);
            }
        }

        /// <summary>
        /// 测试方法
        /// </summary>
        /// <returns></returns>
        public async Task<TransTimeManageResultDto> TransTimeManage( )
        {
            try
            {
                      //_Mutex.Lock() 同步锁
                      //异步锁
                 using (await _Mutex.LockAsync())
                    {
                    //高并发时只有一个线程可以执行改方法
                        await GetEveryDayLoginToken();
                    }
                return new TransTimeManageResultDto();
            }
            catch (Exception e)
            {
                throw new UserFriendlyException(e.Message);
            }
        }
       }