webSocket使用注解开发时候,怎么获取session,实现面对面聊天
@ServerEndpoint
@OnOpen
public void onOpen(Session session,EndpointConfig config) {
this.httpSession = (HttpSession) config.getUserProperties()
.get(HttpSession.class.getName());
System.out.println("open.."+httpSession.getAttribute("user"));
sessionMap.put(session.getId(), session);
}
为什么这种获取不到