Question

我正在尝试在运行时使用特征聚合路由，到目前为止我已经

了

object SMController {
  def aggregateRoutes(actorSystem: ActorSystem): List[Route] = {
    val runtimeMirror = universe.runtimeMirror(getClass.getClassLoader)
    val reflections = new Reflections("com.example.api")
    val subclasses = reflections.getSubTypesOf(classOf[Routable])
    val routesList = new ListBuffer[Route]()

    for (i <- subclasses) {
      val module = runtimeMirror.staticModule(i.getName)
      val obj = runtimeMirror.reflectModule(module)
      val someTrait: Routable = obj.instance.asInstanceOf[Routable]
      routesList += someTrait.getAllRoutes(actorSystem)
    }

    routesList.toList
  }
}

显然，上面的代码无法正常工作，因为无法将项目列表传递给Http().bindAndHandle。

所以我的问题是，如何解析List[Routes]到Http().bindAndHandle接受，或者如何从Routable的子类动态加载路由？

Answer 1

<强> foldLeft：我已设法折叠左路线并合并所有路线，如下所示

val routes = SMController.aggregateRoutes(system)
val bindingFuture = Http().bindAndHandle(
        routes.tail.foldLeft(routes.head)((a, b) => a ~ b), "localhost", 8080)

<强> reduceLeft：

routes.reduceLeft(_ ~ _)

如何使用特征聚合akka-http路由？

1 个答案: