分布式架构

1、分布式锁

String lockkey = "test-info-uid-" + testInfo.getUid();
Lock lock = domainDistributedLockService.obtain(lockkey);
boolean lockFlag = lock.tryLock();
if (!lockFlag) {
    log.warn("未获取到锁 ,taskId=" + taskId);
    return;
}
try {
} catch (Exception ex) {
    throw ex;
} finally {
    if (lockFlag) {
        lock.unlock();
    }
}

@Service
public class RedisDistributedLock implements DomainDistributedLockService {

    @Autowired
    RedisLockRegistry redisLockRegistry;

    @Override
    public Lock obtain(String lockKey) {
        return redisLockRegistry.obtain(lockKey);
    }
}

2、基于状态更新保证幂等

   update(int statusBefore, int statusAfter)

3、事前，事中，事后思想

   doBefore

   do

   doAfter

4、