spring-websocket

问题 I have this ugly error during deploying Spring app on JBoss. 18:11:16,025 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/consumer]] (MSC service thread 1-7) Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener: org.springframework.context.ApplicationContextException: Failed to start bean 'subProtocolWebSocketHandler'; nested exception is java.lang.IllegalArgumentException: No handlers at org

问题 I am trying to run the Spring 4 example given @ https://spring.io/guides/gs/messaging-stomp-websocket. When I try to connect to socket, it throws me following exception. As per the example you need tomcat 7.0.50 and I checked the executable jar which has right version of tomcat. Any pointer would be helpful. java.lang.IllegalArgumentException: No 'javax.websocket.server.ServerContainer' ServletContext attribute. Are you running in a Servlet container that supports JSR-356? 回答1: Check that you

问题 I have a website (Java + Spring) that relies on Websockets (Stomp over Websockets for Spring + RabbitMQ + SockJS) for some functionality. We are creating a command line interface based in Python and we would like to add some of the functionality which is already available using websockets. Does anyone knows how to use a python client so I can connect using the SockJS protocol ? PS_ I am aware of a simple library which I did not tested but it does not have the capability to subscribe to a

问题 I need to react on a user destination subscription. Example: A user subscribes to /user/messages , because he wants to receive all incoming messages. Now I'd like to look up any messages for this user, which were created while he was offline, and then send them to that user. Working code: Client code: stompClient.subscribe('/user/messages', function(msg){ alert(msg.body); }); Server code: template.convertAndSendToUser(p.getName(), "/messages", "message content"); What I need: It seems like it

问题 I am working on a Spring WebSocket Stomp Client for my WebSocket Server and I am getting conflicting information. I have found 2 ways to get it to work and without going into too much detail I was wondering which way is considered the "correct" way of implementing the client. Could somebody help me understand what the WebSocketConnectionManager is for? Also, one more question, how do I keep the websocket connection open and the program running to accept new messages without having to write

问题 I have implemented Web Socket using Spring MVC and it is working fine for me i.e work from one browser to another browser which is open for those socket using this code. @MessageMapping("/hello") @SendTo("/topic/greetings") public HelloMessage greeting(HelloMessage message) throws Exception { Thread.sleep(3000); // simulated delay return message; } Can any one help me for who to call @SendTo("/topic/greetings") from normal api controller.I have try using this but it is not working for me

问题 I am creating a sample chat application using the Spring websockets and stomp.js , I am using the tomcat 7.54 but while runing the application I am gettting a async-supported error when browser is making xhr request. Server info: Apache Tomcat/7.0.54 Servlet version: 3.0 JSP version: 2.2 Java version: 1.7.0_25 Web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=

问题 I am using wss (secured web sockets) with spring from backend and STOMP for javascript client. Does anyone knows why a get: Handshake failed due to invalid Upgrade header: null 回答1: I met the same problem with nginx https proxy to tomcat. This is because I haven't support the wss request. To support the wss request, I use the config like below: # WebSocketSecure SSL Endpoint # # The proxy is also an SSL endpoint for WSS and HTTPS connections. # So the clients can use wss:// connections # (e.g

问题 I've made an app with spring boot with websockets support. Everything is working great. I'm using SockJS + Stomp . No worries. It's just working. But now I want to support the ability of SockJS use its fallback protocols. And it seems that it's not working out of the box. Here's how I added the endpoint: @Override public void registerStompEndpoints(StompEndpointRegistry registry) { registry.addEndpoint("/ws").withSockJS(); } And that's it. No more configuraion. And now when I disable

问题 In javax websockets we can use something like the follows Session.getAsyncRemote().sendText(String text) Session.getBasicRemote().sendText(); How can we send an asynchronous messages using spring websocket. From WebSocketSession of spring webscockets can we extract RemoteEndPoint and send an async messages PS Note: I am using Basic Spring websockets... The configuration and code is as follows: @Configuration @EnableWebMvc @EnableAspectJAutoProxy @EnableWebSocket public class WebMVCConfig