如何使用akka-http在同一端口设置HTTP和HTTPS

import akka.actor.ActorSystem
import akka.http.scaladsl.Http
import akka.http.scaladsl.model._
import akka.http.scaladsl.server.Directives._
import akka.http.scaladsl.server.Route
import akka.http.scaladsl.server.directives.RouteDirectives.complete
import akka.http.scaladsl.settings.ServerSettings
import akka.stream.ActorMaterializer

import scala.io.StdIn

object HttpsServer extends App {
  implicit val system: ActorSystem = ActorSystem("https-server")
  implicit val materializer: ActorMaterializer = ActorMaterializer()
  implicit val executionContext = system.dispatcher

  // HTTP路由
  val httpRoute: Route =
    path("hello") {
      get {
        complete(HttpEntity(ContentTypes.`text/html(UTF-8)`, "<h1>Hello, HTTP!</h1>"))
      }
    }

  // HTTPS路由
  val httpsRoute: Route =
    path("hello") {
      get {
        complete(HttpEntity(ContentTypes.`text/html(UTF-8)`, "<h1>Hello, HTTPS!</h1>"))
      }
    }

  // 合并HTTP和HTTPS路由
  val combinedRoute: Route = httpRoute ~ httpsRoute

  // 启动服务器
  val bindingFuture = Http().bindAndHandle(combinedRoute, "localhost", 8080, connectionContext = HttpsConfig.httpsContext)

  println("Server online at https://localhost:8080/\nPress RETURN to stop...")
  StdIn.readLine()

  // 停止服务器
  bindingFuture
    .flatMap(_.unbind())
    .onComplete(_ => system.terminate())
}

object HttpsConfig {
  import java.io.InputStream
  import java.security.{KeyStore, SecureRandom}

  import javax.net.ssl.{KeyManagerFactory, SSLContext, TrustManagerFactory}

  // SSL证书配置
  val password: Array[Char] = "password".toCharArray
  val keyStore: InputStream = getClass.getClassLoader.getResourceAsStream("keystore.jks")
  val ks: KeyStore = KeyStore.getInstance("PKCS12")
  ks.load(keyStore, password)

  val keyManagerFactory: KeyManagerFactory = KeyManagerFactory.getInstance("SunX509")
  keyManagerFactory.init(ks, password)

  val trustManagerFactory: TrustManagerFactory = TrustManagerFactory.getInstance("SunX509")
  trustManagerFactory.init(ks)

  val sslContext: SSLContext = SSLContext.getInstance("TLS")
  sslContext.init(keyManagerFactory.getKeyManagers, trustManagerFactory.getTrustManagers, new SecureRandom)

  // HTTPS连接上下文
  val httpsContext: HttpsConnectionContext = ConnectionContext.https(sslContext)
}