无法查找自定义调度程序答案

【问题标题】：Not able to lookup a custom dispatcher无法查找自定义调度程序
【发布时间】：2017-08-14 22:38:21
【问题描述】：

我使用的是 Play 2.3.7，我需要在控制器内部使用 Actor。以下代码运行良好

implicit val system = ActorSystem()
implicit val dispatcher = system.dispatcher
val future = (IO(Http) ? Get(url).withHeaders(...).mapTo[HttpResponse]
val result = Await.results(future, Duration.Inf)

现在我对我的conf/application.conf进行以下更改

play {
  akka {
    actor {
      default-dispatcher {
        type = Dispatcher
        executor = "thread-pool-executor"
        thread-pool-executor {
          fixed-pool-size = 128
        }
      }
      foo-dispatcher {
        type = Dispatcher
        executor = "thread-pool-executor"
        thread-pool-executor {
          fixed-pool-size = 128
        }
      }
    }
  }
}

现在，将我的代码更改为

implicit val system = ActorSystem()
implicit val dispatcher = system.dispatchers.lookup("foo-dispatcher")
val future = (IO(Http) ? Get(url).withHeaders(...).mapTo[HttpResponse]
val result = Await.results(future, Duration.Inf)

我收到消息[foo-dispatcher] not configured 的异常

【问题讨论】：

标签： scala playframework playframework-2.3

【解决方案1】：

参考完整路径：

implicit val dispatcher = system.dispatchers.lookup("play.akka.actor.foo-dispatcher")

如果您想使用system.dispatchers.lookup("foo-dispatcher")，请在play 命名空间之外定义foo-dispatcher：

play {
  akka {
    actor {
      default-dispatcher {
        type = Dispatcher
        executor = "thread-pool-executor"
        thread-pool-executor {
          fixed-pool-size = 128
        }
      }
    }
  }
}

foo-dispatcher {
  type = Dispatcher
  executor = "thread-pool-executor"
  thread-pool-executor {
    fixed-pool-size = 128
  }
}

【讨论】：