Akka的生命周期

首先定义一个类，继承Actor

class akka001 extends Actor{
  override def preStart() ={
    println("this is preStart()")
  }

  def receive = LoggingReceive{
    case "hello" => println("hello world")
  }

  override def postStop()={
    println("this is postStop()")
  }
}

然后定义一个主类，给这个类的对象发送消息

/**
  * Created by hyj on 17-7-3.
  */
object AkkaMain {
  def main(args: Array[String]): Unit = {
    val actorSystem=ActorSystem("actorSystem")
    val lifecycleActor=actorSystem.actorOf(Props[cn.qzt360.akka.akka001],"testactor")
    lifecycleActor!"hello"
    actorSystem.shutdown()
  }
}

输出结果如下：

this is preStart()
hello world
this is postStop()

Akka的生命周期：会首先执行prestart方法，然后执行receive方法，用来处理消息，最后调用actorSystem.shutdown()的时候会触发postStop方法的执行