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Akka websockets을 사용하여 일부 클라이언트에 데이터를 푸시합니다. 액자를 사용하여 Akka 웹 소켓에 데이터 전송
이
내가 지금까지 무엇을했는지이다! '안녕하세요'클라이언트 측에서import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.TimeUnit;
import akka.NotUsed;
import akka.actor.ActorSystem;
import akka.http.javadsl.ConnectHttp;
import akka.http.javadsl.Http;
import akka.http.javadsl.ServerBinding;
import akka.http.javadsl.model.HttpRequest;
import akka.http.javadsl.model.HttpResponse;
import akka.http.javadsl.model.ws.Message;
import akka.http.javadsl.model.ws.WebSocket;
import akka.japi.Function;
import akka.stream.ActorMaterializer;
import akka.stream.Materializer;
import akka.stream.javadsl.Flow;
import akka.stream.javadsl.Sink;
import akka.stream.javadsl.Source;
public class Server {
public static HttpResponse handleRequest(HttpRequest request) {
System.out.println("Handling request to " + request.getUri());
if (request.getUri().path().equals("/greeter")) {
final Flow<Message, Message, NotUsed> greeterFlow = greeterHello();
return WebSocket.handleWebSocketRequestWith(request, greeterFlow);
} else {
return HttpResponse.create().withStatus(404);
}
}
public static void main(String[] args) throws Exception {
ActorSystem system = ActorSystem.create();
try {
final Materializer materializer = ActorMaterializer.create(system);
final Function<HttpRequest, HttpResponse> handler = request -> handleRequest(request);
CompletionStage<ServerBinding> serverBindingFuture = Http.get(system).bindAndHandleSync(handler,
ConnectHttp.toHost("localhost", 8080), materializer);
// will throw if binding fails
serverBindingFuture.toCompletableFuture().get(1, TimeUnit.SECONDS);
System.out.println("Press ENTER to stop.");
new BufferedReader(new InputStreamReader(System.in)).readLine();
} finally {
system.terminate();
}
}
public static Flow<Message, Message, NotUsed> greeterHello() {
return Flow.fromSinkAndSource(Sink.ignore(),
Source.single(new akka.http.scaladsl.model.ws.TextMessage.Strict("Hello!")));
}
}
, 나는 성공적으로 수신하고 메시지. 그러나 지금은 이런 식으로, (액터 바람직) 동적으로 뭔가를 데이터를 전송하려면 :
import akka.actor.ActorRef;
import akka.actor.UntypedActor;
public class PushActor extends UntypedActor {
@Override
public void onReceive(Object message) {
if (message instanceof String) {
String statusChangeMessage = (String) message;
// How to push this message to a socket ??
} else {
System.out.println(String.format("'%s':\nReceived unknown message '%s'!", selfActorPath, message));
}
}
}
나는이 온라인에 관한 예를 찾을 수 없습니다입니다. 다음
는사용하는 소프트웨어 스택이다 :
- 자바 1.8
- akka-http 10.0.10