我只想跳过cert验证（基本上与curl相同--不安全）。
脚本语言2.12，akka-http 10.2.4
我试过这些方法，但都不起作用：

1. https://gist.github.com/iRevive/4a3c7cb96374da5da80d4538f3da17cb
2. https://doc.akka.io/docs/akka-http/current/client-side/client-https-support.html#disabling-hostname-verification

自定义SSL上下文

implicit val system: ActorSystem[Nothing] = ActorSystem(Behaviors.empty, "SingleRequest")
implicit val executionContext: ExecutionContextExecutor = system.executionContext
val noCertificateCheckContext = ConnectionContext.https(trustfulSslContext)

private val trustfulSslContext: SSLContext = {

  object NoCheckX509TrustManager extends X509TrustManager {
  override def checkClientTrusted(chain: Array[X509Certificate], authType: String) = ()

  override def checkServerTrusted(chain: Array[X509Certificate], authType: String) = ()

  override def getAcceptedIssuers = Array[X509Certificate]()
  }

  val context = SSLContext.getInstance("TLS")
  context.init(Array[KeyManager](), Array(NoCheckX509TrustManager), null)
  context
}
val res = Await.result(Http().singleRequest(Get(url), noCertificateCheckContext), 60 seconds)

Result:个
java.util.concurrent.TimeoutException:[60秒]后期货超时

遵循官方文件：

implicit val system: ActorSystem[Nothing] = ActorSystem(Behaviors.empty,"SingleRequest")
      implicit val executionContext: ExecutionContextExecutor = system.executionContext
      val noCertificateCheckContext = ConnectionContext.httpsClient(getConnection _)

      def getConnection(host: String, port: Int): SSLEngine  = {
        val engine = SSLContext.getDefault.createSSLEngine(host,port)
        engine.setUseClientMode(true)
        engine
      }
      val res = Http().outgoingConnectionHttps("localhost",4443, connectionContext = noCertificateCheckContext)
      val response = Await.result(Source.single(Get(url)).via(res).runWith(Sink.head), 60 seconds)
      val responseString =Await.result(Unmarshal(response).to[String], 60 seconds)
      println(responseString)

结果：

原因：sun.安全性.验证器.验证器异常：PKIX路径构建失败：安全性提供者证书路径生成器异常：找不到所请求目标的有效证书路径