stomp

How to properly configure Stomp and SockJS endpoint in Spring MVC?

由 风流意气都作罢 提交于 2019-12-02 03:56:16
This is/may be duplicate of: Websocket - InvalidStateError: The connection has not been established yet . I am implementing Notification System. And want to initialize Socket connection when user Logged In, and show him his notifications, and also if some event happens. My Code snippet as follows. websocket.js : var stompClient = null; function connect( temp ) { alert(temp); //var socket = new SockJS("/websock"); //var socket = new SockJS("/websock"+temp); var socket = new SockJS(context_path+"/websock"+temp); //context_path == "/SupportCenter" stompClient = Stomp.over(socket); stompClient

Spring session + Spring web socket. Send message to specific client based on session id

由 落爺英雄遲暮 提交于 2019-12-01 21:49:04
I have followed Quetion1 and Quetion2 from stack overflow to send messages to specific client, based on its sessionId but could not find success. Below is my sample RestController class @RestController public class SpringSessionTestApi { @Autowired public SimpMessageSendingOperations messagingTemplate; @MessageMapping("/messages") public void greeting(HelloMessage message, SimpMessageHeaderAccessor headerAccessor) throws Exception { String sessionId = (String) headerAccessor.getSessionAttributes().get("SPRING.SESSION.ID"); messagingTemplate.convertAndSendToUser(sessionId,"/queue/test",message,

How to reply to unauthenticated user in Spring 4 STOMP over WebSocket configuration?

由 南楼画角 提交于 2019-12-01 05:15:10
问题 I'm experimenting with Spring 4 WebSocket STOMP application. Is there a way to reply to a single unauthenticated user on condition that each user has unique session ID? Right now I can only either broadcast a message or send it directly to an authenticated user. @Controller public class ProductController { @MessageMapping("/products/{id}") @SendTo("/topic") // This line makes return value to be broadcasted to every connected user. public String getProduct(@DestinationVariable int id) { return

Stomp.py how to return message from listener

由 心已入冬 提交于 2019-11-30 18:45:52
问题 I've already read this topic: Stomp.py return message from listener But i still don't get how this works, and why there's no way to retrieve a message from the stomp object, or the listener directly? If i can send a message via the send method, and If i can receive a message with an on_message listener method, why can't I return that message to my original function, so I could return it to the frontend? So if i have: class MyListener(object): def on_error(self, headers, message): print '>>> '

Spring Boot Stomp WebSocket

由 感情迁移 提交于 2019-11-30 18:23:33
问题 I seem to be running into an issue bumping up against the 8k size limit that embedded tomcat has for stomp websocket messages. When sending a message from server to client I am getting the following error. Based on the documentation I've read, it seems that tomcat has a limit of 8k for messages going across websockets, but ive also read that Stomp can send partial messages and have the client reassemble them which doesnt seem to be happening. The message is never getting to the client side

Stomp.py return message from listener

由 …衆ロ難τιáo~ 提交于 2019-11-30 17:22:10
问题 Using stomp.py (3.0.5) with python (2.6) alongside Apache ActiveMQ (5.5.1). I have got the basic example working without any problems, but now I want to return the received message (in on_message()) to a variable outside the MyListener class. I can imagine this is a pretty standard task, but my general python skills aren't good enough to work out how to do it. I've trawled google for a more advanced example and read up on global variables, but I still can't seem to get the message into a

How to send message to user when he connects to spring websocket

由 狂风中的少年 提交于 2019-11-30 15:57:59
I want to send message to user when he connects to spring websocket, I've @Configuration @EnableWebSocketMessageBroker public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer { @Autowired private GenervicSerice<User> userService; @Autowired private SimpMessagingTemplate template; private CurrentUser currnetUser; @Override public void registerStompEndpoints(StompEndpointRegistry stompEndpointRegistry) { // TODO Auto-generated method stub stompEndpointRegistry.addEndpoint("/ws").withSockJS(); } @Override public void configureMessageBroker(MessageBrokerRegistry config) {

How to send message to user when he connects to spring websocket

由 谁说我不能喝 提交于 2019-11-29 23:00:52
问题 I want to send message to user when he connects to spring websocket, I've @Configuration @EnableWebSocketMessageBroker public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer { @Autowired private GenervicSerice<User> userService; @Autowired private SimpMessagingTemplate template; private CurrentUser currnetUser; @Override public void registerStompEndpoints(StompEndpointRegistry stompEndpointRegistry) { // TODO Auto-generated method stub stompEndpointRegistry.addEndpoint(

Could not autowire. No beans of SimpMessagingTemplate type found

由 爱⌒轻易说出口 提交于 2019-11-29 11:38:51
问题 I am configuring Websockets in Spring basically by following the guide provided in the documentation. I am currently trying to send a message from the server to the client as explained in the section "Sending messages from anywhere" Following the example, you can Autowire a class called SimpMessagingTemplate @Controller public class GreetingController { private SimpMessagingTemplate template; @Autowired public GreetingController(SimpMessagingTemplate template) { this.template = template; }

SpringBoot 使用WebSocket创建聊天室

由 天大地大妈咪最大 提交于 2019-11-29 04:04:28
一、什么是 WebSocket 1. 简介 WebSocket 协议是基于 TCP 的一种网络协议，它实现了浏览器与服务器全双工（Full-duplex）通信——允许服务器主动发送信息给客户端。 以前，很多网站为了实现推送技术，所用的技术都是轮询。轮询是在特定的的时间间隔（如每 1 秒），由浏览器对服务器发出 HTTP 请求，然后由服务器返回最新的数据给客户端的浏览器。这种传统的模式带来很明显的缺点，即浏览器需要不断地向服务器发出请求，然而 HTTP 请求可能包含较长的头部，其中真正有效的数据可能只是很小的一部分，显然这样会浪费很多的带宽等资源。 在这种情况下， HTML 5 定义了 WebSocket 协议 ，能更好得节省服务器资源和带宽，并且能够更实时地进行通讯。WebSocket 协议在 2008 年诞生，2011 年成为国际标准，现在主流的浏览器都已经支持。 它的最大特点就是，服务器可以主动向客户端推送信息，客户端也可以主动向服务器发送信息，是真正的双向平等对话，属于服务器推送技术的一种。在 WebSocket API 中，浏览器和服务器只需要完成一次握手，两者之间就直接可以创建持久性的连接，并进行双向数据传输。 2. 优点 较少的控制开销 在连接创建后，服务器和客户端之间交换数据时，用于协议控制的数据包头部相对较小。在不包含扩展的情况下，对于服务器到客户端的内容
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