防止多次领取红包进行ID锁

//controller里面使用锁

ActivityRedPacket ap = customerService.getActivityRedPacket(params);
  　　 if (synchronizedUtil.lockActivyId.containsKey(ap.getId())) {//MAP(key)锁里面是否存在锁
  　　　　  logger.info("<----------------领取红包客户:" + customeid + "多次操作领取红包！---------------------->");
   　　　　 return;
   　　} else {
   　　　　 synchronizedUtil.synchronizedActivyId(ap.getId());/添加锁
   　　}

　　synchronized (synchronizedUtil.lockActivyId.get(ap.getId())) {//获取锁

　　　　try{

　　　　　　　　　　　　//逻辑

　　　　}finally{

　　　　　　synchronizedUtil.lockActivyId.remove(ap.getId());//释放锁（移除MAP KEY 值）

　　　　}

　　}

//synchronizedUtil工具类

public class synchronizedUtil {

　　public static final ConcurrentHashMap<Integer, Object> lockVehicle = new ConcurrentHashMap<Integer, Object>();

　　 public static final ConcurrentHashMap<Integer, Object> lockOrder = new ConcurrentHashMap<Integer, Object>();

public static final ConcurrentHashMap<Integer, Object> lockCustomerId = new ConcurrentHashMap<Integer, Object>();

public static final ConcurrentHashMap<Integer, Object> lockActivyId = new ConcurrentHashMap<Integer, Object>();

public static synchronized void synchronizedVehicle(Integer vehicleId){

if (!lockVehicle.containsKey(vehicleId)) {

lockVehicle.put(vehicleId, new Object());

return;

}

}

public static synchronized void synchronizedOrder(Integer OrderId){

if (!lockOrder.containsKey(OrderId)) {

lockOrder.put(OrderId, new Object());

return;

}

}

public static synchronized void synchronizedCustomerId(Integer CustomerId){

if (!lockCustomerId.containsKey(CustomerId)) {

lockCustomerId.put(CustomerId, new Object());

return;

}

}

public static synchronized void synchronizedActivyId(Integer ActivyId){

if (!lockActivyId.containsKey(ActivyId)) {//是否包含此ID锁不包含则放到MAP里

lockActivyId.put(ActivyId, new Object());

return;

}

}

}