Scala 无法广播到play2中的所有客户端
现在我正在使用Play2(Scala)开发WebSocket,并成功地与客户端进行通信。然而,play提供的广播功能似乎并没有向所有客户端发送消息。我怎样才能修好它 :服务器中的控制器Scala 无法广播到play2中的所有客户端,scala,playframework,websocket,playframework-2.0,broadcast,Scala,Playframework,Websocket,Playframework 2.0,Broadcast,现在我正在使用Play2(Scala)开发WebSocket,并成功地与客户端进行通信。然而,play提供的广播功能似乎并没有向所有客户端发送消息。我怎样才能修好它 :服务器中的控制器 def ws = WebSocket.using[String] { request => val (out, channel) = Concurrent.broadcast[String] val in = Iteratee.foreach[String] { msg =>
def ws = WebSocket.using[String] { request =>
val (out, channel) = Concurrent.broadcast[String]
val in = Iteratee.foreach[String] { msg =>
println(msg)
channel push(msg)
}.map{ _ => println("closed") } //when connection close
(in, out)
}
:客户端
$ ->
ws = new WebSocket("ws://localhost:9000/ws")
ws.onopen = (event) ->
console.log("connected!!")
ws.onmessage = (event) ->
data = event.data.split(",")
infotype = data[0]
if infotype is "noisy"
room = data[1]
alert "noise happen at " + room
else if infotype is "gotIt"
console.log("someone gotIt")
else
console.log(data)
alert("oh arrive")
ws.onerror = (event) ->
console.log("error happned")
$(".rooms").on("click", (event) ->
room = $(this).attr("id")
ws.send("noisy," + room) )
理想情况下,当按下按钮(在本例中不是按钮,而是rooms类)时,客户机将消息发送到服务器(这可以正常工作),服务器应该向所有客户机广播该消息(在我的代码中它不工作)。
因此,所有客户端都应显示警报消息。
但是,只有向服务器发送消息的客户端才能从服务器获取消息并显示警报。
问题出在哪里?这是因为您为每个客户端创建了一个新的Concurrent.broadcast。 在您的操作之外创建一次,如下所示:
val (out, channel) = Concurrent.broadcast[String]
def ws = WebSocket.using[String] { request =>
val in = Iteratee.foreach[String] { msg =>
println(msg)
channel push(msg)
}.map{ _ => println("closed") } //when connection close
(in, out)
}