2025-12-03 zwy 维护大疆上云、司空错误码！返回前端的错误码和错误详情。

zhaowenyu

2025-12-03 7e8cfb0ba5b3a514908575cd9dc00af42125881b

 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);
    }

}