spring-websocket

I'm developing a multiplayer game based on Spring 4 WebSocket. my server is stateless so in order to identify players i use tokens. after struggling for sometime with how to identify players over WebSockets i came up with this solution: on the client player registers like this: var sockjs = new SockJS("http://mygame/games/", null, {server : token}); this adds the token to the url, I have set up a filter using spring security: String requestURI = request.getRequestURI(); String[] parts = StringUtils.split(requestURI, "/"); if (parts.length == 4) { String token = parts[1]; List<GrantedAuthority>

I'm doing a web application using Spring Boot. This application is also configured to use WebSocket and handle (pretty basic) incoming messages. The application seems to work fine. The problem is when I'm doing some testing. The relevant parts are these: //WebManagerApplication.java @Configuration @ComponentScan @EnableAutoConfiguration public class WebManagerApplication { public static void main(String[] args) { SpringApplication.run(WebManagerApplication.class, args); } } // //WebSocketConfig.java @Configuration @EnableWebSocket public class WebSocketConfig implements WebSocketConfigurer{

I can either use websocket that configure with WebSocketConfigurer or use @Scheduled() to schedule task without any problem. However, java does not compile when i use both of them. @Scheduled() annotation may crash with org.springframework.web.socket.config.annotation.WebSocketConfigurationSupport$NoOpScheduler.scheduleAtFixedRate() java.lang.IllegalStateException: Unexpected use of scheduler. at org.springframework.web.socket.config.annotation.WebSocketConfigurationSupport$NoOpScheduler.scheduleAtFixedRate(WebSocketConfigurationSupport.java:123) at org.springframework.scheduling.config

I am going through Spring 4 websocket + stomp + rabbitmq(RabbitMQ-Web-Stomp plugin) architecture and I have a question about clustering. As per my understanding here Spring MVC act as a gateway for STOMP requests. If we cluster the application instance with spring web socket configuration will it create any confusion? For an example will it open multiple listeners and how will in such a case this architecture behave? In this scenario, you would need to use load balancing and a message broker. I used HAProxy to load balance 4 Spring MVC instances (websocket) running on 4 tomcat servers. Also

Summary I would like to implement websocket communication over STOMP. Authenticate The user in the time of the first (HTTP request) websocket handshake and use this Principal for authorizing websocket messages later. Problem The system authenticates the client at the first time when it tries to connect to the websocket endpoint (the time of HTTP handshake). My spring security filter and Authentication provider does its job and authenticates the client properly. After this I can check that the client gets the Roles and my Authentication object is stored in the SecurityContext as well. (At this

I'm using the Spring framework and I have a working websocket controller that looks like this: @Controller public class GreetingController { @MessageMapping("/hello") @SendTo("/topic/greetings") public Greeting greeting(HelloMessage message) throws InterruptedException { return new Greeting("Hello, " + message.getName() + "!"); } } I also have this configuration: @Configuration @EnableWebSocketMessageBroker public class HelloWebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer { @Override public void configureMessageBroker(MessageBrokerRegistry config) { config.enableSimpleBroker("

I tried to change an web application from simple broker to an embedded ActiveMq Broker with stomp using Spring boot 1.5.4 but always getting an error on start up Caused by: java.lang.IllegalArgumentException: No handlers at org.springframework.util.Assert.isTrue(Assert.java:92) ~[spring-core-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.web.socket.messaging.SubProtocolWebSocketHandler.start(SubProtocolWebSocketHandler.java:244) ~[spring-websocket-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java

So I'm looking to upgrade my projects from spring boot 1.1.9.RELEASE to 1.2.1.RELEASE. <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-websocket</artifactId> <version>${spring.boot.version}</version> </dependency> However, on startup, I gained: Exception in thread "Thread-0" org.springframework.context.ApplicationContextException: Failed to start bean 'subProtocolWebSocketHandler'; nested exception is java.lang.IllegalArgumentException: No handlers at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java