What subway line do I use to get to Jiaotong Station after I arrive on the Maglev from PuDong? Thank

Do you refer to JIaotong University subway station? If yes, after you get off at Longyang Road maglev station, you can take the subway line 2 to Jiangsu Road. And then change to line 11 to Jiaotong University.
If traveling with luggage, it will be troublesome to make transfers. A taxi ride from the Longyagn Road to the university may cost you about CNY60.