分布式 锁

RLock rLock = redissonClient.getLock("CALCULATE_PROFIT");
try {
    boolean acquireLock = rLock.tryLock(1, 120, TimeUnit.SECONDS);
    if (acquireLock){
        //业务逻辑代码
    }else{
        return  BaseResponse.Error("500", "请稍后重试!");
    }
} catch (Exception e) {
    e.printStackTrace();
}finally {
    if (rLock.isHeldByCurrentThread()){
        rLock.unlock();
    }
}

原文：https://www.cnblogs.com/RenChenHao/p/15355965.html