Ich verwende Spring-Boot (eingebetteter Container) mit Atmosphere Framework basierend auf diesen one und two Beispielprojekten.Atmosphere Framework Websocket gibt leer responseBody zurück
Ich versuche, eine sehr einfache Sendung von einer Ressource zu tun, der Browser empfängt die Nachricht, aber die responseBody ist leere Zeichenfolge "". Ich habe einen Großteil des Atmosphere-Codes getestet und von dem, was ich sagen kann, wurde meine JSON-Nachricht erfolgreich zur asynchronen Schreibwarteschlange hinzugefügt, aber sie bleibt im Browser leer.
Ich dachte zuerst könnte es sein, dass Atmosphäre die Nachricht ausfiltert, aber das Debuggen zeigt, dass es nicht ist.
Relevante pom.xml
<spring-boot-starter-web.version>1.3.3.RELEASE</spring-boot-starter-web.version>
<atmosphere-runtime.version>2.2.4</atmosphere-runtime.version>
<atmosphere-javascript.version>2.2.3</atmosphere-javascript.version>
Relevante TRACE Log:
17:39:59.813 TRACE o.atmosphere.cpr.DefaultBroadcaster - /websocket/notifications is about to broadcast Entry{message={"id":1,"msg":"Hello, World"}, type=ALL, [email protected]}
Atmosphäre Konfiguration
package com.hello;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
import org.atmosphere.cache.UUIDBroadcasterCache;
import org.atmosphere.cpr.ApplicationConfig;
import org.atmosphere.cpr.AtmosphereFramework;
import org.atmosphere.cpr.AtmosphereServlet;
import org.atmosphere.cpr.MetaBroadcaster;
import org.springframework.boot.context.embedded.ServletContextInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class AtmosphereConfiguration implements ServletContextInitializer {
@Bean
public AtmosphereServlet atmosphereServlet() {
return new AtmosphereServlet();
}
@Bean
public AtmosphereFramework atmosphereFramework() {
return atmosphereServlet().framework();
}
@Bean
public MetaBroadcaster metaBroadcaster() {
AtmosphereFramework framework = atmosphereFramework();
return framework.metaBroadcaster();
}
@Override
public void onStartup(ServletContext servletContext) throws ServletException {
configureAthmosphere(atmosphereServlet(), servletContext);
}
private void configureAthmosphere(AtmosphereServlet servlet, ServletContext servletContext) {
ServletRegistration.Dynamic atmosphereServlet = servletContext.addServlet("atmosphereServlet", servlet);
atmosphereServlet.setInitParameter(ApplicationConfig.ANNOTATION_PACKAGE, "com.hello");
atmosphereServlet.setInitParameter(ApplicationConfig.BROADCASTER_CACHE, UUIDBroadcasterCache.class.getName());
atmosphereServlet.setInitParameter(ApplicationConfig.BROADCASTER_SHARABLE_THREAD_POOLS, "true");
atmosphereServlet.setInitParameter(ApplicationConfig.BROADCASTER_MESSAGE_PROCESSING_THREADPOOL_MAXSIZE, "10");
atmosphereServlet.setInitParameter(ApplicationConfig.BROADCASTER_ASYNC_WRITE_THREADPOOL_MAXSIZE, "10");
servletContext.addListener(new org.atmosphere.cpr.SessionSupport());
atmosphereServlet.addMapping("/websocket/*");
atmosphereServlet.setLoadOnStartup(0);
atmosphereServlet.setAsyncSupported(true);
}
}
Atmosphäre Ressourcen
package com.hello;
import java.nio.charset.StandardCharsets;
import org.atmosphere.config.service.Disconnect;
import org.atmosphere.config.service.ManagedService;
import org.atmosphere.config.service.Ready;
import org.atmosphere.cpr.AtmosphereResource;
import org.atmosphere.cpr.AtmosphereResourceEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ManagedService(path = NotificationAtmosphereResource.PATH)
public class NotificationAtmosphereResource {
public static final String PATH = "/websocket/notifications";
private Logger logger = LoggerFactory.getLogger(NotificationAtmosphereResource.class);
public void init(AtmosphereResource resource){
resource.getResponse().setCharacterEncoding(StandardCharsets.UTF_8.name());
}
@Ready
public void onReady(final AtmosphereResource resource) {
logger.info("Connected {}", resource.uuid());
}
@Disconnect
public void onDisconnect(AtmosphereResourceEvent event) {
logger.info("Client {} disconnected [{}]", event.getResource().uuid(),
(event.isCancelled() ? "cancelled" : "closed"));
}
}
Stelle, bei der ich emittieren Nachrichten
package com.hello;
import org.atmosphere.cpr.MetaBroadcaster;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class NotificationEmitterBean implements NotificationEmitter {
private Logger logger = LoggerFactory.getLogger(NotificationEmitterBean.class);
@Autowired
private MetaBroadcaster metaBroadcaster;
@Autowired
private NotificationService notificationService;
@Autowired
private JsonMapper jsonMapper;
@Override
public void emitForJob(String msg) {
metaBroadcaster.broadcastTo(NotificationAtmosphereResource.PATH,
jsonMapper.toJson(msg));
}
}
}