Is it troublesome to take maglev to enter city ?since u mention cross the river
Not really, if it's your first time in Shanghai, you should try the Maglev. The feeling of the ride is interesting (you don't really have a chance to take it anywhere else I think).
If you look at the
Shanghai Metro map, there's a Loyang station at Line 2 on the right hand side. That is where the Maglev stops at (8 mins ride I think). From there, you exit the Maglev station and walk to the Loyang underground subway station (it's just next to Maglev station).
Shanghai is split between Pudong and Puxi by the Huangpu river in the middle. East of river is Pudong, west of river is Puxi.
If taking by Metro during rush hours, be prepared to be squeezing like sardines (after this experience, squeezing in Singapore MRT is more relaxed hehe). Transferring between lines does also take some time. May take even up to 5-10mins just to transfer from one line to another.
You can also take the Taxi at Loyang station, there's a taxi stand there. Becareful of Black taxis (illegal private cars).