songshuaijin/distributed-lock

分布式锁 分段锁 基于 memcached redis zookeeper (3种资源模式) 实现

distributed-lock

distributed lock, segmentation lock, Base on Redis or Memcached

example

//对 segmentation_object 这个字符串加锁
ObjectLock objectSegmentationLock = new ObjectLock("segmentation_object");

try {
	
	objectSegmentationLock.lock();
	dosomething();
	
} catch (Exception e) {
	e.printStackTrace();
} finally {
	
	objectSegmentationLock.releaseLock();
}


try {
	//尝试加锁直到5秒后超时加锁失败
	if(objectSegmentationLock.tryLock(5000)) {
		dosomething();
	}
	
} catch (Exception e) {
	e.printStackTrace();
} finally {
	
	objectSegmentationLock.releaseLock();
}


CodeLock codeLock = new CodeLock();

try {
	//直接对以下代码（dosomething）进行加锁
	codeLock.lock();
	dosomething();
	
} catch (Exception e) {
	e.printStackTrace();
} finally {
	
	codeLock.releaseLock();
}

try {
	//直接对以下代码（dosomething）尝试加锁 直到5秒后超时加锁失败
	if(codeLock.tryLock(5000)) {
		dosomething();
	}
	
} catch (Exception e) {
	e.printStackTrace();
} finally {
	
	codeLock.releaseLock();
}