Question

我正在使用scala构建一个spin应用程序，我正在关注找到here的示例，但是当我去编译时我得到了这个错误

Error:(38, 7) could not find implicit value for parameter system: akka.actor.ActorSystem
                IO(Http) ! Http.Bind(webServer,
                  ^

谷歌搜索引导我不在哪里，这是我的应用程序的代码

package au.net.hivemedia.polydeploy

import akka.actor.{Props, ActorRef, ActorSystem}
import akka.io.IO
import au.net.hivemedia.polydeploy.dono.http.WebServerActor
import spray.can.Http

/**
 * PolyDeploy Dono - Braeburn
 *
 * Copyright (c) Hive Media Production, 2014.
 * All rights reserved. Do not redistribute
 *
 */
object App extends App {

  final val VERSION = "1.0-SNAPSHOT"
  final val CODENAME = "Twilight Sparkle"

  private var instance: Dono = _
  private var actorSystem: ActorSystem = _
  private var webServer: ActorRef = _

  override def main(args: Array[String]) {
    println("Starting PolyDeploy Dono v" + VERSION)
    println("=+ Project Version Codename: " + CODENAME)

    instance = new Dono()
    println("=+ Loading required items into the runtime")
    instance.load()

    println("=+ Loading new Actor System")
    actorSystem = ActorSystem("DonoActorSystem")

    println("=+ Starting web interface server")
    webServer = actorSystem.actorOf(Props[WebServerActor], name = "WebServer")

    IO(Http) ! Http.Bind(webServer,
                         interface = instance.getConfiguration().getString("web-bind-host"),
                         port = instance.getConfiguration().getInt("web-bind-port"))

  }
}

如果需要，我可以发布更多代码片段

谢谢，

利安

Answer 1

IO.apply采用隐式ActorSystem。使用actorSystem将implicit var actorSytem隐含为隐式，或将actorSystem明确传递为IO(Http)(actorSystem)

IO（Http）导致错误“无法找到参数系统的隐式值：akka.actor.ActorSystem”

1 个答案: