2026-01-24 zwy 增加json的依赖

zhaowenyu

2026-01-24 6222a3b5eb3ab5f3d8e998c69b7fcfa623ec243b

 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);
    }

}