Question

我是Play框架的新手，Play的文档并不全面

我试图在这个文档的帮助下编写测试websocket： https://www.playframework.com/documentation/2.6.x/JavaWebSockets

控制器

package controllers.websockets;

import akka.actor.ActorSystem;
import akka.stream.Materializer;
import play.libs.streams.ActorFlow;
import play.mvc.Controller;
import play.mvc.WebSocket;

import javax.inject.Inject;

public class TestWebSocketController extends Controller {

    private final ActorSystem actorSystem;
    private final Materializer materializer;

    @Inject
    public TestWebSocketController(ActorSystem actorSystem, Materializer materializer) {
        this.actorSystem = actorSystem;
        this.materializer = materializer;
    }

    public WebSocket socket() {
        return WebSocket.Text.accept(request ->
                ActorFlow.actorRef(TestWebSocketActor::props,
                        actorSystem, materializer
                )
        );
    }
}

演员：

package controllers.websockets;

import akka.actor.AbstractActor;
import akka.actor.ActorRef;
import akka.actor.Props;

public class TestWebSocketActor extends AbstractActor {
    public static Props props(ActorRef out) {
        return Props.create(TestWebSocketActor.class, out);
    }

    private final ActorRef out;

    public TestWebSocketActor(ActorRef out) {
        this.out = out;
    }

    @Override
    public AbstractActor.Receive createReceive() {
        return receiveBuilder()
                .match(String.class, message ->
                        out.tell("I received your message: " + message, self())
                )
                .build();
    }
}

CONF /路线：

# WebSockets
GET           /ws           controllers.websockets.TestWebSocketController.socket()

我尝试使用Simmple WebSocket Plugin for Chrome https://www.websocket.org/echo.html的帮助，使用这样的url：ws：// localhost：9000 / ws，但出现了错误消息：

WebSocket connection to 'ws://localhost:9000/ws' failed: Error during WebSocket handshake: Unexpected response code: 404 
CLOSED: ws://localhost:9000/ws

Play，Websocket：WebSocket握手期间出错：意外的响应代码：404

0 个答案: