arrive in Shanghai on the 9th Sept and need to get to the purple mountain trustel hotel

Are you arriving in Pudong Airport? If so, you can take Maglev to Longyang Raod in 8min first and then transfer to subway line 2 to get off at Century Avenue. Leave from exit 12 and you can walk to your hotel in several minutes. Or you can directly take subway line 2 at the airpport to your destination.