redis分布式锁--》死锁问题解决策略研究

	@Override
		public boolean tryLock(long time, TimeUnit unit) throws InterruptedException {
			long now = System.currentTimeMillis();
			// 检查本地是否持有锁
			if (!this.localLock.tryLock(time, unit)) {
				return false;
			}
			try {
				long expire = now + TimeUnit.MILLISECONDS.convert(time, unit);
				boolean acquired;
				// 获取锁
				while (!(acquired = obtainLock()) && System.currentTimeMillis() < expire) { //NOSONAR
					Thread.sleep(100); //NOSONAR
				}
				if (!acquire