这五个品类都有所HttpEntity类型来装载必要沟通的数目,这七个门类都有着HttpEntity类型来装载要求交流的数额

 
大家说过Akka-http是一个好的种类融为一体工具,集成是通过数据沟通情势已毕的。Http是个在网上传输和收取的规范协商。所以,在利用Akka-http此前,可能大家依然必要把Http格局的网上数据沟通细节精通精晓。数据互换双方是通过Http音讯类型Request和Response来落实的。在Akka-http中对应的是HttpRequest和HttpResponse。这些品种都拥有HttpEntity类型来装载要求调换的数量。首先,无论怎么着数据在线上的表现格局肯定是一串bytes。所以,数据交换三头Request,Response中的Entity也非得是以bytes来发表的。在Akka-http里我们把要求传输的多少转换成ByteString,通过网络发送給接收端、接收端再把接收音信Entity中的ByteString转换成目的项目的多寡。那多少个转移进度就是Akka-http的马尔斯halling和Unmarshalling进度了。大家先从HttpEntity的构建函数来询问它的概念:

 
大家说过Akka-http是一个好的连串融为一体工具,集成是由此数据调换形式达成的。Http是个在网上传输和收取的正统商事。所以,在应用Akka-http以前,可能我们照旧须要把Http格局的网上数据沟通细节明白清楚。数据交流双方是通过Http新闻类型Request和Response来促成的。在Akka-http中对应的是HttpRequest和HttpResponse。那多少个品种都具有HttpEntity类型来装载须要交换的多少。首先,无论怎么样数据在线上的表现形式肯定是一串bytes。所以,数据互换五头Request,Response中的Entity也不可能不是以bytes来表述的。在Akka-http里大家把须求传输的数量转换成ByteString,通过网络发送給接收端、接收端再把收到信息Entity中的ByteString转换成目的项目的数码。那多少个转移进程就是Akka-http的马尔斯(Mars)halling和Unmarshalling进程了。大家先从HttpEntity的构建函数来询问它的定义:

object HttpEntity {
  implicit def apply(string: String): HttpEntity.Strict = apply(ContentTypes.`text/plain(UTF-8)`, string)
  implicit def apply(bytes: Array[Byte]): HttpEntity.Strict = apply(ContentTypes.`application/octet-stream`, bytes)
  implicit def apply(data: ByteString): HttpEntity.Strict = apply(ContentTypes.`application/octet-stream`, data)
  def apply(contentType: ContentType.NonBinary, string: String): HttpEntity.Strict =
    if (string.isEmpty) empty(contentType) else apply(contentType, ByteString(string.getBytes(contentType.charset.nioCharset)))
  def apply(contentType: ContentType, bytes: Array[Byte]): HttpEntity.Strict =
    if (bytes.length == 0) empty(contentType) else apply(contentType, ByteString(bytes))
  def apply(contentType: ContentType, data: ByteString): HttpEntity.Strict =
    if (data.isEmpty) empty(contentType) else HttpEntity.Strict(contentType, data)

  def apply(contentType: ContentType, contentLength: Long, data: Source[ByteString, Any]): UniversalEntity =
    if (contentLength == 0) empty(contentType) else HttpEntity.Default(contentType, contentLength, data)
  def apply(contentType: ContentType, data: Source[ByteString, Any]): HttpEntity.Chunked =
    HttpEntity.Chunked.fromData(contentType, data)
...
object HttpEntity {
  implicit def apply(string: String): HttpEntity.Strict = apply(ContentTypes.`text/plain(UTF-8)`, string)
  implicit def apply(bytes: Array[Byte]): HttpEntity.Strict = apply(ContentTypes.`application/octet-stream`, bytes)
  implicit def apply(data: ByteString): HttpEntity.Strict = apply(ContentTypes.`application/octet-stream`, data)
  def apply(contentType: ContentType.NonBinary, string: String): HttpEntity.Strict =
    if (string.isEmpty) empty(contentType) else apply(contentType, ByteString(string.getBytes(contentType.charset.nioCharset)))
  def apply(contentType: ContentType, bytes: Array[Byte]): HttpEntity.Strict =
    if (bytes.length == 0) empty(contentType) else apply(contentType, ByteString(bytes))
  def apply(contentType: ContentType, data: ByteString): HttpEntity.Strict =
    if (data.isEmpty) empty(contentType) else HttpEntity.Strict(contentType, data)

  def apply(contentType: ContentType, contentLength: Long, data: Source[ByteString, Any]): UniversalEntity =
    if (contentLength == 0) empty(contentType) else HttpEntity.Default(contentType, contentLength, data)
  def apply(contentType: ContentType, data: Source[ByteString, Any]): HttpEntity.Chunked =
    HttpEntity.Chunked.fromData(contentType, data)
...

很分明,HttpEntity能够分两大类,一种是Strict类型的,它的data是ByteString。另一种是UniversalEntity类型,它的多寡dataBytes是Source[ByteString,Any]。无论怎么着最后在线上的或者ByteString。HttpEntity的ContentType声明了传输数据格式,有:

很肯定,HttpEntity可以分两大类,一种是Strict类型的,它的data是ByteString。另一种是UniversalEntity类型,它的数量dataBytes是Source[ByteString,Any]。无论怎么样最后在线上的要么ByteString。HttpEntity的ContentType声明了传输数据格式,有:

object ContentTypes {
  val `application/json` = ContentType(MediaTypes.`application/json`)
  val `application/octet-stream` = ContentType(MediaTypes.`application/octet-stream`)
  val `text/plain(UTF-8)` = MediaTypes.`text/plain` withCharset HttpCharsets.`UTF-8`
  val `text/html(UTF-8)` = MediaTypes.`text/html` withCharset HttpCharsets.`UTF-8`
  val `text/xml(UTF-8)` = MediaTypes.`text/xml` withCharset HttpCharsets.`UTF-8`
  val `text/csv(UTF-8)` = MediaTypes.`text/csv` withCharset HttpCharsets.`UTF-8`

  // used for explicitly suppressing the rendering of Content-Type headers on requests and responses
  val NoContentType = ContentType(MediaTypes.NoMediaType)
}
object ContentTypes {
  val `application/json` = ContentType(MediaTypes.`application/json`)
  val `application/octet-stream` = ContentType(MediaTypes.`application/octet-stream`)
  val `text/plain(UTF-8)` = MediaTypes.`text/plain` withCharset HttpCharsets.`UTF-8`
  val `text/html(UTF-8)` = MediaTypes.`text/html` withCharset HttpCharsets.`UTF-8`
  val `text/xml(UTF-8)` = MediaTypes.`text/xml` withCharset HttpCharsets.`UTF-8`
  val `text/csv(UTF-8)` = MediaTypes.`text/csv` withCharset HttpCharsets.`UTF-8`

  // used for explicitly suppressing the rendering of Content-Type headers on requests and responses
  val NoContentType = ContentType(MediaTypes.NoMediaType)
}

专注:ContentType只是一种备注,不影响线上多少表明格局,线上的数码永远是ByteString。但是,其中的application/octet-stream类型代表数量必须是Source[ByteString,Any]。大家上面就经过客户端的例子来掌握HttpEntity。下边是一个客户端测试函数:

在意:ContentType只是一种备注,不影响线上数据表达格局,线上的数量永远是ByteString。但是,其中的application/octet-stream类型代表数量必须是Source[ByteString,Any]。大家上边就经过客户端的例证来通晓HttpEntity。上边是一个客户端测试函数:

  def runService(request: HttpRequest, rentity: RequestEntity) = {
   val futResp = for {
     entity <- Future.successful(rentity)
     resp <- Http(sys).singleRequest(
       request.copy(entity = rentity)
     )
   } yield resp

   futResp
    .andThen {
      case Success(r@HttpResponse(StatusCodes.OK, _, entity, _)) =>
        entity.dataBytes.map(_.utf8String).runForeach(println)
      case Success(r@HttpResponse(code, _, _, _)) =>
        println(s"Download request failed, response code: $code")
        r.discardEntityBytes()
      case Success(_) => println("Unable to download rows!")
      case Failure(err) => println(s"Download failed: ${err.getMessage}")

    }
  }
  def runService(request: HttpRequest, rentity: RequestEntity) = {
   val futResp = for {
     entity <- Future.successful(rentity)
     resp <- Http(sys).singleRequest(
       request.copy(entity = rentity)
     )
   } yield resp

   futResp
    .andThen {
      case Success(r@HttpResponse(StatusCodes.OK, _, entity, _)) =>
        entity.dataBytes.map(_.utf8String).runForeach(println)
      case Success(r@HttpResponse(code, _, _, _)) =>
        println(s"Download request failed, response code: $code")
        r.discardEntityBytes()
      case Success(_) => println("Unable to download rows!")
      case Failure(err) => println(s"Download failed: ${err.getMessage}")

    }
  }

俺们只要求对这一个函数传入RequestEntity就足以精晓再次回到Response里Entity的众多细节了。首先大家要求服务端发送一个纯字符串Hello
World。服务端代码如下:

我们只要求对这些函数传入RequestEntity就可以驾驭重返Response里Entity的过多细节了。首先我们渴求服务端发送一个纯字符串Hello
World。服务端代码如下:

 } ~ path("text") {
      get {
        complete("Hello World!")
      } ~
 } ~ path("text") {
      get {
        complete("Hello World!")
      } ~

虽然complete(“Hello
World!”)有些迷糊,可是相应complete做了些字符串到ByteString的转换。我们可以从地点那些run瑟维斯(Service)函数得到认证。上面是这么些事例的调用:

虽然complete(“Hello
World!”)有些迷糊,不过相应complete做了些字符串到ByteString的变换。大家得以从地点那几个runService(Service)函数得到证实。下边是那些事例的调用:

  val reqText = HttpRequest(uri = s"http://localhost:8011/text")
  runService(reqText,HttpEntity.Empty)
    .andThen{case _ => sys.terminate()}
  val reqText = HttpRequest(uri = s"http://localhost:8011/text")
  runService(reqText,HttpEntity.Empty)
    .andThen{case _ => sys.terminate()}

从出示的结果可以得出run瑟维斯(Service)(Service)函数中的entity.dataBytes.map(_.utf8String)已经把ByteString转换成了String,也就是说服务器端发送的Entity里的数据是ByteString。

从出示的结果可以得出run瑟维斯(Service)(Service)函数中的entity.dataBytes.map(_.utf8String)已经把ByteString转换成了String,也就是说服务器端发送的Entity里的多寡是ByteString。

俺们再试着发送一些多少給服务端,然后让服务端把结果通过response
entity重返来:

我们再试着发送一些数码給服务端,然后让服务端把结果通过response
entity重返来:

    } ~ path("text") {
      get {
        complete("Hello World!")
      } ~
        post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }
    } ~ path("text") {
      get {
        complete("Hello World!")
      } ~
        post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }

我们看看服务端对request
entity的操作是以ByteString举办的。客户端上传一串字符的request如下:

大家看到服务端对request
entity的操作是以ByteString进行的。客户端上传一串字符的request如下:

  val postText = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/text")
  val uploadText = HttpEntity(
    ContentTypes.`text/plain(UTF-8)`,
    // transform each number to a chunk of bytes
    ByteString("hello world again")
  )
  runService(postText,uploadText)
    .andThen{case _ => sys.terminate()}
  val postText = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/text")
  val uploadText = HttpEntity(
    ContentTypes.`text/plain(UTF-8)`,
    // transform each number to a chunk of bytes
    ByteString("hello world again")
  )
  runService(postText,uploadText)
    .andThen{case _ => sys.terminate()}

大家得以看出放进entity里的数码是ByteString。

咱俩得以看来放进entity里的多寡是ByteString。

俺们领悟Akka-http是按照Akka-Stream的,具备Reactive-Stream功能特色。上边大家就示范一下怎么着进行stream的上传下载。首先定制一个Source:

大家领悟Akka-http是按照Akka-Stream的,具备Reactive-Stream功效特色。上面我们就示范一下怎么样举办stream的上传下载。首先定制一个Source:

  val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)
  val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)

服务端也是用HttpEntity来装载那几个Source然后因而HttpRequest传给客户端的:

服务端也是用HttpEntity来装载那一个Source然后透过HttpRequest传给客户端的:

  path("random") {
      get {
        complete(
          HttpEntity(
            ContentTypes.`application/octet-stream`,
            // transform each number to a chunk of bytes
            source.take(10000)
          )
        )
      } ~
  path("random") {
      get {
        complete(
          HttpEntity(
            ContentTypes.`application/octet-stream`,
            // transform each number to a chunk of bytes
            source.take(10000)
          )
        )
      } ~

大家在客户端如故用runService来分析传过来的entity。由于接到一个重型的Source,所以需求修改一下接到情势代码:

俺们在客户端或者用run瑟维斯(Service)(Service)来分析传过来的entity。由于接到一个特大型的Source,所以须要修改一下吸收模式代码:

   futResp
    .andThen {
      case Success(r@HttpResponse(StatusCodes.OK, _, entity, _)) =>
        val futEnt = entity.dataBytes.map(_.utf8String).runForeach(println)
             Await.result(futEnt, Duration.Inf) // throws if binding fails
             println("End of stream!!!")
      case Success(r@HttpResponse(code, _, _, _)) =>
        println(s"Download request failed, response code: $code")
        r.discardEntityBytes()
      case Success(_) => println("Unable to download rows!")
      case Failure(err) => println(s"Download failed: ${err.getMessage}")

    }
   futResp
    .andThen {
      case Success(r@HttpResponse(StatusCodes.OK, _, entity, _)) =>
        val futEnt = entity.dataBytes.map(_.utf8String).runForeach(println)
             Await.result(futEnt, Duration.Inf) // throws if binding fails
             println("End of stream!!!")
      case Success(r@HttpResponse(code, _, _, _)) =>
        println(s"Download request failed, response code: $code")
        r.discardEntityBytes()
      case Success(_) => println("Unable to download rows!")
      case Failure(err) => println(s"Download failed: ${err.getMessage}")

    }

用上面的情势调用:

用上面的方法调用:

  val reqRandom = HttpRequest(uri = s"http://localhost:8011/random")
    runService(reqRandom,HttpEntity.Empty)
     .andThen{case _ => sys.terminate()}
  val reqRandom = HttpRequest(uri = s"http://localhost:8011/random")
    runService(reqRandom,HttpEntity.Empty)
     .andThen{case _ => sys.terminate()}

再示范一下在客户端用Source上传数据。服务端代码:

再示范一下在客户端用Source上传数据。服务端代码:

       post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }
       post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }

客户端上传数据范例:

客户端上传数据范例:

 val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)

  val bytes = HttpEntity(
    ContentTypes.`application/octet-stream`,
    // transform each number to a chunk of bytes
    source.take(10000)
  )
  val postRandom = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/random")
  runService(postRandom,bytes)
    .andThen{case _ => sys.terminate()}
 val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)

  val bytes = HttpEntity(
    ContentTypes.`application/octet-stream`,
    // transform each number to a chunk of bytes
    source.take(10000)
  )
  val postRandom = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/random")
  runService(postRandom,bytes)
    .andThen{case _ => sys.terminate()}

从上边探究我们询问了在马尔斯hal,Unmarshal下层只是ByteString的操作和转换。上边是此次切磋示范源代码:

从地点研究大家驾驭了在马尔斯(Mars)hal,Unmarshal下层只是ByteString的操作和更换。下边是这次探究示范源代码:

服务端:

服务端:

import akka.actor._
import akka.stream._
import akka.stream.scaladsl._
import akka.http.scaladsl.Http
import akka.http.scaladsl.server.Directives._
import akka.http.scaladsl.model._
import akka.util.ByteString
import akka.http.scaladsl.model.HttpEntity._

import scala.util.Random

object ServerEntity extends App {

  implicit val httpSys = ActorSystem("httpSystem")
  implicit val httpMat = ActorMaterializer()
  implicit val httpEC = httpSys.dispatcher


  val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)



  val route =
    path("random") {
      get {
        withoutSizeLimit {
          complete(
            HttpEntity(
              ContentTypes.`application/octet-stream`,
              // transform each number to a chunk of bytes
              source.take(1000))
          )
        }
      } ~
        post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }
    } ~ path("text") {
      get {
        complete("Hello World!")
      } ~
        post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }
    }


  val (port, host) = (8011,"localhost")

  val bindingFuture = Http().bindAndHandle(route,host,port)

  println(s"Server running at $host $port. Press any key to exit ...")

  scala.io.StdIn.readLine()

  bindingFuture.flatMap(_.unbind())
    .onComplete(_ => httpSys.terminate())

}
import akka.actor._
import akka.stream._
import akka.stream.scaladsl._
import akka.http.scaladsl.Http
import akka.http.scaladsl.server.Directives._
import akka.http.scaladsl.model._
import akka.util.ByteString
import akka.http.scaladsl.model.HttpEntity._

import scala.util.Random

object ServerEntity extends App {

  implicit val httpSys = ActorSystem("httpSystem")
  implicit val httpMat = ActorMaterializer()
  implicit val httpEC = httpSys.dispatcher


  val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)



  val route =
    path("random") {
      get {
        withoutSizeLimit {
          complete(
            HttpEntity(
              ContentTypes.`application/octet-stream`,
              // transform each number to a chunk of bytes
              source.take(1000))
          )
        }
      } ~
        post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }
    } ~ path("text") {
      get {
        complete("Hello World!")
      } ~
        post {
          withoutSizeLimit {
            extractDataBytes { bytes =>
              val data = bytes.runFold(ByteString())(_ ++ _)
              onComplete(data) { t =>
                complete(t)
              }
            }
          }
        }
    }


  val (port, host) = (8011,"localhost")

  val bindingFuture = Http().bindAndHandle(route,host,port)

  println(s"Server running at $host $port. Press any key to exit ...")

  scala.io.StdIn.readLine()

  bindingFuture.flatMap(_.unbind())
    .onComplete(_ => httpSys.terminate())

}

客户端:

客户端:

import akka.actor._
import akka.stream._
import akka.stream.scaladsl._
import akka.http.scaladsl.Http
import akka.http.scaladsl.model.HttpEntity.limitableByteSource
import akka.http.scaladsl.model._

import scala.concurrent.duration._
import akka.util.ByteString

import scala.concurrent._
import scala.util._

object ClientEntity extends App {

  implicit val sys = ActorSystem("ClientSys")
  implicit val mat = ActorMaterializer()
  implicit val ec = sys.dispatcher

  def runService(request: HttpRequest, rentity: RequestEntity) = {
   val futResp = for {
     entity <- Future.successful(rentity)
     resp <- Http(sys).singleRequest(
       request.copy(entity = rentity)
     )
   } yield resp

   futResp
    .andThen {
      case Success(r@HttpResponse(StatusCodes.OK, _, entity, _)) =>
        val futEnt = entity.dataBytes.map(_.utf8String).runForeach(println)
             Await.result(futEnt, Duration.Inf) // throws if binding fails
             println("End of stream!!!")
      case Success(r@HttpResponse(code, _, _, _)) =>
        println(s"Download request failed, response code: $code")
        r.discardEntityBytes()
      case Success(_) => println("Unable to download rows!")
      case Failure(err) => println(s"Download failed: ${err.getMessage}")

    }
  }

  val reqText = HttpRequest(uri = s"http://localhost:8011/text")
//  runService(reqText,HttpEntity.Empty)
//    .andThen{case _ => sys.terminate()}

  val postText = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/text")
  val uploadText = HttpEntity(
    ContentTypes.`text/plain(UTF-8)`,
    // transform each number to a chunk of bytes
    ByteString("hello world again")
  )
//  runService(postText,uploadText)
//    .andThen{case _ => sys.terminate()}

  val reqRandom = HttpRequest(uri = s"http://localhost:8011/random")
 //   runService(reqRandom,HttpEntity.Empty)
 //    .andThen{case _ => sys.terminate()}

  val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)

  val bytes = HttpEntity(
    ContentTypes.`application/octet-stream`,
    // transform each number to a chunk of bytes
    source.take(10000)
  )
  val postRandom = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/random")
  runService(postRandom,bytes)
    .andThen{case _ => sys.terminate()}


}
import akka.actor._
import akka.stream._
import akka.stream.scaladsl._
import akka.http.scaladsl.Http
import akka.http.scaladsl.model.HttpEntity.limitableByteSource
import akka.http.scaladsl.model._

import scala.concurrent.duration._
import akka.util.ByteString

import scala.concurrent._
import scala.util._

object ClientEntity extends App {

  implicit val sys = ActorSystem("ClientSys")
  implicit val mat = ActorMaterializer()
  implicit val ec = sys.dispatcher

  def runService(request: HttpRequest, rentity: RequestEntity) = {
   val futResp = for {
     entity <- Future.successful(rentity)
     resp <- Http(sys).singleRequest(
       request.copy(entity = rentity)
     )
   } yield resp

   futResp
    .andThen {
      case Success(r@HttpResponse(StatusCodes.OK, _, entity, _)) =>
        val futEnt = entity.dataBytes.map(_.utf8String).runForeach(println)
             Await.result(futEnt, Duration.Inf) // throws if binding fails
             println("End of stream!!!")
      case Success(r@HttpResponse(code, _, _, _)) =>
        println(s"Download request failed, response code: $code")
        r.discardEntityBytes()
      case Success(_) => println("Unable to download rows!")
      case Failure(err) => println(s"Download failed: ${err.getMessage}")

    }
  }

  val reqText = HttpRequest(uri = s"http://localhost:8011/text")
//  runService(reqText,HttpEntity.Empty)
//    .andThen{case _ => sys.terminate()}

  val postText = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/text")
  val uploadText = HttpEntity(
    ContentTypes.`text/plain(UTF-8)`,
    // transform each number to a chunk of bytes
    ByteString("hello world again")
  )
//  runService(postText,uploadText)
//    .andThen{case _ => sys.terminate()}

  val reqRandom = HttpRequest(uri = s"http://localhost:8011/random")
 //   runService(reqRandom,HttpEntity.Empty)
 //    .andThen{case _ => sys.terminate()}

  val numbers = Source.fromIterator(() =>
    Iterator.continually(Random.nextInt()))
    .map(n => ByteString(s"$n\n"))
  //make conform to withoutSizeLimit constrain
  val source = limitableByteSource(numbers)

  val bytes = HttpEntity(
    ContentTypes.`application/octet-stream`,
    // transform each number to a chunk of bytes
    source.take(10000)
  )
  val postRandom = HttpRequest(HttpMethods.POST,uri = s"http://localhost:8011/random")
  runService(postRandom,bytes)
    .andThen{case _ => sys.terminate()}


}

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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