如果Akka-Http WebSocket处理传入消息非常缓慢,你可以尝试以下解决方法:
import akka.actor.ActorSystem
import akka.http.scaladsl.Http
import akka.http.scaladsl.model.ws.{Message, TextMessage}
import akka.http.scaladsl.server.Directives._
import akka.stream.ActorMaterializer
import akka.stream.scaladsl.{Flow, Sink, Source}
import scala.concurrent.ExecutionContext
object WebSocketServer {
def main(args: Array[String]): Unit = {
implicit val system: ActorSystem = ActorSystem("WebSocketServer")
implicit val materializer: ActorMaterializer = ActorMaterializer()
implicit val ec: ExecutionContext = system.dispatcher
val websocketFlow: Flow[Message, Message, Any] = Flow[Message].mapConcat {
case TextMessage.Strict(text) =>
// Process the incoming message here
// Return a list of outgoing messages
// e.g. List(TextMessage("Response"))
List(TextMessage("Response"))
case _ =>
List.empty
}
val route = path("ws") {
get {
handleWebSocketMessages(websocketFlow)
}
}
Http().bindAndHandle(route, "localhost", 8080)
}
}
buffer
操作符来设置缓冲区的大小。import akka.actor.ActorSystem
import akka.http.scaladsl.Http
import akka.http.scaladsl.model.ws.{Message, TextMessage}
import akka.http.scaladsl.server.Directives._
import akka.stream.{ActorMaterializer, OverflowStrategy}
import akka.stream.scaladsl.{Flow, Sink, Source}
import scala.concurrent.ExecutionContext
object WebSocketServer {
def main(args: Array[String]): Unit = {
implicit val system: ActorSystem = ActorSystem("WebSocketServer")
implicit val materializer: ActorMaterializer = ActorMaterializer()
implicit val ec: ExecutionContext = system.dispatcher
val websocketFlow: Flow[Message, Message, Any] =
Flow[Message]
.buffer(10, OverflowStrategy.dropNew)
.mapConcat {
case TextMessage.Strict(text) =>
// Process the incoming message here
// Return a list of outgoing messages
// e.g. List(TextMessage("Response"))
List(TextMessage("Response"))
case _ =>
List.empty
}
val route = path("ws") {
get {
handleWebSocketMessages(websocketFlow)
}
}
Http().bindAndHandle(route, "localhost", 8080)
}
}
通过采取上述措施,你应该能够提高Akka-Http WebSocket处理传入消息的性能和响应速度。