Time is enough for you to catch the train. It takes about 40-60 minutes to go through the custom and claim your luggage. Then you can take the Maglev train to Longyang road and then take a taxi to the train station. Subway line 2 can not take you to the train station. Well, you can also take the airport shuttle bus line 5 directly from the airport to Shanghai Railway Station. The bus journey is about 80 minutes.