小编Car*_*rez的帖子

在sbt项目中运行sbt时出现此错误.我有JDK 8和sbt 0.13.8.我可以毫无问题地运行activator命令,但我需要sbt工作,因为我的IDE(IntelliJ IDEA)使用它来加载项目.

E:\work\workspace\knowlege\play-scala-di>sbt
    Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
    java.lang.IllegalArgumentException: URI has an authority component
    at java.io.File.<init>(File.java:423)
    at sbt.Classpaths$.sbt$Classpaths$$bootRepository(Defaults.scala:1758)
    at sbt.Classpaths$$anonfun$appRepositories$1.apply(Defaults.scala:1729)
    at sbt.Classpaths$$anonfun$appRepositories$1.apply(Defaults.scala:1729)
    at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
            at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
            at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
    at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34)
    at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
    at scala.collection.AbstractTraversable.map(Traversable.scala:105)
    at sbt.Classpaths$.appRepositories(Defaults.scala:1729)
    at sbt.Classpaths$$anonfun$41.apply(Defaults.scala:1102)
    at sbt.Classpaths$$anonfun$41.apply(Defaults.scala:1102)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at sbt.EvaluateSettings$MixedNode.evaluate0(INode.scala:175)
    at sbt.EvaluateSettings$INode.evaluate(INode.scala:135)
    at sbt.EvaluateSettings$$anonfun$sbt$EvaluateSettings$$submitEvaluate$1.apply$mcV$sp(INode.scala:69)
    at sbt.EvaluateSettings.sbt$EvaluateSettings$$run0(INode.scala:78)
    at sbt.EvaluateSettings$$anon$3.run(INode.scala:74)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    [error] java.lang.IllegalArgumentException: URI has an authority component

我们的想法是保持频道开放以便以后使用它.在playframework 2.5.x中,文档说你必须使用akka流,但没有说明如何实现这个例子.有人可以帮帮我吗？

import play.api.mvc._
import play.api.libs.iteratee._
import play.api.libs.concurrent.Execution.Implicits.defaultContext

def socket =  WebSocket.using[String] { request =>

  // Concurrent.broadcast returns (Enumerator, Concurrent.Channel)
  val (out, channel) = Concurrent.broadcast[String]

  // log the message to stdout and send response back to client
  val in = Iteratee.foreach[String] {
    msg => println(msg)
      // the Enumerator returned by Concurrent.broadcast subscribes to the channel and will
      // receive the pushed messages
      channel push("I received your message: " + msg)
  }
  (in,out)
}