根据这些示例,我试图让一个非常简单的循环函数循环运行:
http://doc.akka.io/docs/akka/2.1.2/scala/scheduler.html
代码:
import akka.actor.Actor
import akka.actor.Props
import scala.concurrent.duration._
object Main extends Application {
val system = akka.actor.ActorSystem("system") // this was missing!
import system.dispatcher
system.scheduler.schedule( 0 milliseconds, (10*1000) milliseconds, {
println( "click!" )
})
}
我得到(sbt):
> .../src/Main.scala:34: not found: value system [error] import
> system.dispatcher [error] ^ [error]
> .../src/Main.scala:36: not found: value system [error]
> system.scheduler.schedule( 0 milliseconds /*initial delay*/,
> (entry.secs*1000) milliseconds /*delay between*/, { [error] ^
system
应该来自哪里?
Addendum:
我'm having the code within a ' main()' function, and I haven' t继承了 Actor
或 ActorSystem
中的任何内容 . 关键是我想安排功能,但没有进入演员 . 框架是否必须从某种东西中衍生出来(如果是这样,那应该说出来了吗?) .
1 回答
在
import system.dispatcher
之前,它看起来像是缺少以下表达式: