我有一个基本的scalaakkahttpcrud应用程序。相关课程见下文。
我只想在创建/更新实体时将实体id和一些数据（如json）写入kafka主题。
我在看http://doc.akka.io/docs/akka-stream-kafka/current/producer.html，但我对scala和akka是新手，不确定如何将其集成到我的应用程序中？
例如，从上面的文档来看，这是一个制作人写给Kafka的例子，所以我想我需要一些类似的东西，但是在我的应用程序中这个应该去哪里呢？在创建用户之后，是否可以在服务的create方法中添加另一个map调用？
非常感谢！

val done = Source(1 to 100)
  .map(_.toString)
  .map { elem =>
    new ProducerRecord[Array[Byte], String]("topic1", elem)
  }
  .runWith(Producer.plainSink(producerSettings))

或者我需要做一些类似的例子吗https://github.com/hseeberger/accessus 在my server.scala的bindandhandle（）方法中？
Web服务器.scala

object System {

  implicit val system = ActorSystem()
  implicit val dispatcher = system.dispatcher
  implicit val actorMaterializer = ActorMaterializer()

}

object WebServer extends App {

  import System._

  val config = new ApplicationConfig() with ConfigLoader
  ConfigurationFactory.setConfigurationFactory(new LoggingConfFileConfigurationFactory(config.loggingConfig))
  val injector = Guice.createInjector(new MyAppModule(config))
  val routes = injector.getInstance(classOf[Router]).routes
  Http().bindAndHandle(routes, config.httpConfig.interface, config.httpConfig.port)

}

路由器.scala

def routes(): Route = {
    post {
      entity(as[User]) { user =>
        val createUser = userService.create(user)
        onSuccess(createUser) {
          case Invalid(y: NonEmptyList[Err]) =>  {
            throw new ValidationException(y)
          }
          case Valid(u: User) => {
              complete(ToResponseMarshallable((StatusCodes.Created, u)))
          }
        }
      }
    } ~
    // More routes here, left out for example  
}

服务.scala

def create(user: User): Future[MaybeValid[User]] = {
    for {
      validating <- userValidation.validateCreate(user)
      result <- validating match {
        case Valid(x: User) =>
          userRepo.create(x)
            .map(dbUser => Valid(UserConverters.fromUserRow(x)))
        case y: DefInvalid =>
          Future{y}
      }
    } yield result
  }

回购scala

def create(user: User): Future[User] = {
    mutateDbProvider.db.run(
      userTable returning userTable.map(_.userId)
        into ((user, id) => user.copy(userId = id)) +=
        user.copy(createdDate = Some(Timestamp.valueOf(LocalDateTime.now())))
    )
  }