my hotel is Oriental Riverside Hotel (Shanghai International Convention Center). Shuttle bus?

No direct shuttle bus will take you there. If you wish to use shuttle bus, take line 6 to Laoximen and then take a taxi to get to your hotel within 15min.

Besides, you are recommended to experience the Maglev from PVG to Longyang Road. Then u can easily transfer to subway line 2 to get off at Lujiazui. Get out from exit 1 and you can walk to your hotel in 800 meters.