PresenceWebsocketServer.java 文件源码

private static IPresenceChatService getPresenceChatService() {
if (PresenceWebsocketServer.presenceChatService == null) {
    WebApplicationContext ctx = WebApplicationContextUtils
        .getWebApplicationContext(SessionManager.getServletContext());
    PresenceWebsocketServer.presenceChatService = (IPresenceChatService) ctx.getBean("presenceChatService");
}
return PresenceWebsocketServer.presenceChatService;
   }