Scala Play 2.3 WS.url(...) 配置错误

Question

我正在尝试对另一台服务器进行简单的、未经身份验证的 WS 调用我们的内部网络，但如果没有得到关于

的 NoSuchMethodException

AsyncHttpClientConfig$Builder.setConnectionTimeoutInMs(I)AsyncHttpClientConfig$Builder;

完整堆栈跟踪：

[error] Uncaught exception when running app.controllers.WSSuite:
java.lang.NoSuchMethodError: com.ning.http.client.AsyncHttpClientConfig$Builder.setConnectionTimeoutInMs(I)Lcom/ning/http/client/AsyncHttpClientConfig$Builder;
sbt.ForkMain$ForkError: com.ning.http.client.AsyncHttpClientConfig$Builder.setConnectionTimeoutInMs(I)Lcom/ning/http/client/AsyncHttpClientConfig$Builder;
  at play.api.libs.ws.ning.NingAsyncHttpClientConfigBuilder.configureWS(NingAsyncHttpClientConfigBuilder.scala:45)
  at play.api.libs.ws.ning.NingAsyncHttpClientConfigBuilder.build(NingAsyncHttpClientConfigBuilder.scala:28)
  at app.controllers.WSSuite.<init>(NotificationActionsSuite.scala:110)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
  at java.lang.Class.newInstance(Class.java:442)
  at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:641)
  at sbt.ForkMain$Run.call(ForkMain.java:294)
  at sbt.ForkMain$Run.call(ForkMain.java:284)
  at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)

build.sbt

...

libraryDependencies ++= Seq(
  "org.postgresql" % "postgresql" % "9.3-1100-jdbc4",
  "org.flywaydb" % "flyway-sbt" % "3.0",
  "org.dbunit" % "dbunit" % "2.5.0" % "test",
  "org.scalatest" %% "scalatest" % "2.2.1" % "test",
  "org.scalatestplus" %% "play" % "1.2.0" % "test",
  "org.jdom" % "jdom" % "1.1.2"  notTransitive(),
  "org.pac4j" % "play-pac4j_scala2.11"  % "1.4.0",
  "org.pac4j" % "pac4j-http" % "1.7.0",
  "jp.t2v" %% "play2-auth"      % "0.13.2",
  "jp.t2v" %% "play2-auth-test" % "0.13.2" % "test",
  "javax.jms" % "javax.jms-api" % "2.0.1",
  "org.apache.activemq" % "activemq-all" % "5.11.1",
  "io.gatling.highcharts" % "gatling-charts-highcharts" % "2.1.7" % "test",
  "io.gatling"            % "gatling-test-framework"    % "2.1.7" % "test",
  jdbc,
  anorm,
  ws
)

lazy val root = (project in file("."))
  .enablePlugins(PlayScala)

...

project/plugins.sbt

...
addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.3.10") // It works from Play 2.3.2
...

test/app/controllers/WSSuite.scala

import play.api.libs.ws.WS
import scala.concurrent.ExecutionContext.Implicits.global 
import org.scalatestplus.play.{OneAppPerSuite, PlaySpec}
import play.api.Play.current
class WSSuite extends PlaySpec with OneAppPerSuite 
{
  "WS library" should {
    "Hit an external web service" in {
      WS.url("http://www.google.com").get().map { response =>
        println("Body: " + response.body)
      }
    }
  }
}

我不知道如何解决这个问题，因为 Play Docs 指出这个应该可以正常工作。

相关文档：https://www.playframework.com/documentation/2.3.x/ScalaWS

Answer 1

您不能在同一项目中使用 Play 2.3 和 Gatling 2.1，因为 AsyncHttpClient 的版本存在冲突。

Play 2.3 需要 AHC 1.8，而 Gatling 2.1 需要 AHC 1.9。

要么升级到 Play 2.4，其中 AHC 依赖项已升级，要么将 Gatling 测试移至类路径不会冲突的单独项目或模块。

Scala Play 2.3 WS.url(...) 配置错误

Scala Play 2.3 WS.url(...) Configuration Error

web-services

scala

playframework-2.0

完整堆栈跟踪：

build.sbt

project/plugins.sbt

test/app/controllers/WSSuite.scala