2025-11-29 zwy 在websocket断开时给5秒延时，给前端刷新缓冲

zhaowenyu

2025-11-29 8b459796efa4f1e0571f4436953a52d25a063e70

 ard-work/src/main/java/com/ard/work/component/websocket/WebSocketSessionManager.java

@@ -28,4 +28,9 @@
    public static int getOnlineUserCount() {
        return ONLINE_USER_SESSIONS.size();
    }

    public static boolean containsUser(Long userId) {
        return ONLINE_USER_SESSIONS.containsKey(userId);
    }

}