问如何将Akka ByteString转换为字符串？

EN

package chatapp.server

import java.net.InetSocketAddress

import akka.actor.{Actor, ActorSystem}
import akka.io.Tcp._
import akka.io.{IO, Tcp}

/**
  * Created by Niels Bokmans on 30-3-2016.
  */
class ServerActor(actorSystem: ActorSystem) extends Actor {
  val Port = 18573
  val Server = "localhost"

  IO(Tcp)(actorSystem) ! Bind(self, new InetSocketAddress("localhost", Port))

  def receive: Receive = {

    case CommandFailed(_: Bind) =>
      println("Failed to start listening on " + Server + ":" + Port)
      context stop self
      actorSystem.terminate()

    case Bound(localAddress: InetSocketAddress) =>
      println("Started listening on " + localAddress)

    case Connected(remote, local) =>
      println("New connection!")
      sender ! Register(self)
    case Received(data) =>
      println(data)
  }
}