在代码中使用“peeks”或“length”等方法来检测邮箱中有多少个元素,然后如果邮箱为空,则使用“become”方法使actor进入休眠状态。代码示例如下:
import akka.actor.Actor
case object CheckMailbox
class MyActor extends Actor { override def receive: Receive = { case CheckMailbox => if (context.sender().isEmpty) { context.become(sleeping) } case _ => //处理消息 }
def sleeping: Receive = { case CheckMailbox => if (context.sender().nonEmpty) { context.unbecome() } case _ => // 不处理消息 } }