spring websocket stomp 获取用户信息

websockethandler怎么获取的

public void sendMessage(SimpMessageHeaderAccessor accessor , UserChat userChat){

    Map<String,Object> map =                                        accessor.getSessionAttributes();
    User user = (User) map.get(Constants.SESSION_USER);
     上述代码是在Controller中实现的,accessor可以获取请求头消息 例如sessionId等等,

不过上述代码 之前要添加websocket拦截器 registry.addEndpoint("/coordination").withSockJS().setInterceptors(new ChatHandlerShareInterceptor());

而ChatHandlerShareInterceptor extends HttpSessionHandshakeInterceptor 或者实现ChatHandlerShareInterceptor extends HttpSessionHandshakeInterceptor

重写beforeHandshake方法,将session中数据赋值到attributes里面

}