redisson 分布式锁

    @RequestMapping(value = "/testLock", method = RequestMethod.POST)
    public BaseResponse<Boolean> testLock(@RequestBody TestLockRequest testLockRequest) {
        String lockKey = "testLock:" + testLockRequest.getUserId();
        RLock lock = redissonClient.getLock(lockKey);

        boolean isLocked = false;
        try {
            // 尝试获取锁，等待 3 秒，如果获取到锁，则通过看门狗自动续期，直到业务完成
            isLocked = lock.tryLock(3, TimeUnit.SECONDS);

            if (!isLocked) {
                log.warn("获取锁失败，userId: {}", testLockRequest.getUserId());
                return RspUtils.error("操作繁忙，请稍后再试！");
            }

            log.info("获取锁成功，使用看门狗动态续期，userId: {}", testLockRequest.getUserId());

            // TODO: 执行业务逻辑
            // doBusinessLogic(testLockRequest);

            return RspUtils.success();

        } catch (Exception e) {
            log.error("业务执行异常，userId: {}", testLockRequest.getUserId(), e);
            return RspUtils.error("操作失败");
        } finally {
            // 确保锁释放
            if (isLocked && lock.isHeldByCurrentThread()) {
                lock.unlock();
                log.info("释放锁成功，userId: {}", testLockRequest.getUserId());
            }
        }
    }

@RequestMapping(value = "/testLock", method = RequestMethod.POST)
public BaseResponse<Boolean> testLock(@RequestBody TestLockRequest testLockRequest) {
    String lockKey = "testLock:" + testLockRequest.getUserId();
    RLock lock = redissonClient.getLock(lockKey);

    try {
        // 阻塞等待获取锁
        lock.lock();
        log.info("获取锁成功，userId: {}", testLockRequest.getUserId());

        // TODO: 执行业务逻辑
        // doBusinessLogic(testLockRequest);

        return RspUtils.success();

    } catch (Exception e) {
        log.error("业务执行异常，userId: {}", testLockRequest.getUserId(), e);
        return RspUtils.error("操作失败");
    } finally {
        // 安全释放锁
        if (lock.isHeldByCurrentThread()) {
            lock.unlock();
            log.info("释放锁成功，userId: {}", testLockRequest.getUserId());
        }
    }
}