Scala akka http不在请求头中添加远程地址

根据akka http和：

akka http服务器引擎将远程地址头添加到每个 如果相应的设置不正确，则自动请求 akka.http.server.remote-address-header设置为on。默认情况下是这样的 出发

application.conf已相应设置

akka {
  http {
    server {
      remote-address-header = on
    }
  }
}

下面的测试未能从请求头中提取

远程地址

import akka.http.scaladsl.server.Route
import akka.http.scaladsl.client.RequestBuilding
import akka.http.scaladsl.model._
import akka.http.scaladsl.testkit.ScalatestRouteTest

"Remote-Address added to request header by akka-http" in {
  val request = RequestBuilding.Get("/").withHeaders(`User-Agent`(this.getClass.getSimpleName))
  val miniRoute: Route = { ctx => ctx.complete("Always Succeed") }

  request ~> miniRoute ~> check {
    assert(responseAs[String] == "Always Succeed")
  }

  //confirm akka config setting is correct
  assert(ConfigFactory.load().getString("akka.http.server.remote-address-header") == "on", "FAILED: please set application.conf: akka.http.server.remote-address-header = on")

  val remoteIP: Option[HttpHeader] = request.headers.find(_.name == "Remote-Address")
  assert(remoteIP.nonEmpty, "FAILED: Remote-Address missing in Request Headers")
}

---

问题akka http是否应在请求头中自动注入

远程地址

？另外，如果您能演示如何重写此测试，并且可以通过编程方式设置

akka.http.server.remote address头

config，我将不胜感激。

您将面临此问题，因为testkit的

ScalateStroutTest

不会自动添加

远程地址

。它只发生在

Http（）

对象级别（有关更多详细信息，请参阅）

如果您想看到它的运行，您可以启动一个正在运行的服务器

object Tmp extends App {
  implicit val sys = ActorSystem("tmp")
  implicit val mat = ActorMaterializer()

  val route = headerValueByName("Remote-Address") { complete(_) }

  Http().bindAndHandle(route, "localhost", 8080)
}

---

根据您的配置（在您的问题中这是正确的），您应该得到

200 OK

（如果设置为

on

）或

400坏请求

（如果设置为

off

）。

根据您的建议，我进行了下面的测试，测试工作正常。希望这对其他人有用

import akka.http.scaladsl.Http
import akka.stream.ActorMaterializer
import akka.http.scaladsl.server.directives.{HeaderDirectives, RouteDirectives}
import com.typesafe.config.ConfigFactory

/** Verify that akka-http engine injects the "Remote-Address" header in the request headers
  * if the config key "akka.http.server.remote-address-header = on"
  *
  * TESTING (set config on/off via command line argument)
  * 1. Run the mini web server
  *    sbt "runMain blabla.AkkaRemoteAddressTest on"
  *
  * 2. Open Git-Bash and type:
  *    $ curl -s http://localhost:2017
  *      (console output) Remote-Address = 127.0.0.1:58208 (Thursday, 02 Mar 2017 - 18:54:55)
  *    $ curl -s http://$COMPUTERNAME:2017
  *      (console output) Remote-Address = 10.5.34.101:58285 (Thursday, 02 Mar 2017 - 18:57:30)
  */
object AkkaRemoteAddressTest {
  def main(args: Array[String]): Unit = {
    val configValue =
      if (args.isEmpty) "on"
      else if (args(0).toLowerCase != "on" && args(0).toLowerCase != "off") "on"
      else args(0)

    val miniConfig = ConfigFactory.parseString(
      s"""
        |akka.http.server.remote-address-header = $configValue
      """.stripMargin)

    implicit val sys = ActorSystem("AkkaRemoteAddressTest", miniConfig)
    implicit val mat = ActorMaterializer()

    val sdfmt = new java.text.SimpleDateFormat("EEEE, dd MMM yyyy - HH:mm:ss")

    val route = HeaderDirectives.headerValueByName("Remote-Address") {
      remaddr => RouteDirectives.complete(s"Remote-Address = $remaddr (${sdfmt.format(java.util.Calendar.getInstance.getTime)})")
    }

    Http().bindAndHandle(route, "0.0.0.0", 2017)
  }
}