What is an easy and cheap way to get from Shanghai Pudong Airport to Pujiang Hotel, 15 Huangpu Road?

Hi, for convenience and money saving, I suggest you take subway line 2 at Airport MTR Station to East Nanjing Road. Then you need transfer to subway line 10 to Tiantong Road Station. Getting out from Exit 3, you can walk to your hotel soon.
Actually, it is only 1.2 km or around from East Nanjing Road to your hotel, so you can take a cab to your hotel upon arrival as well. It can be more convenient.