Hangzhou to NUAA, Nanjing

You can take the airport shuttle bus to the East Railway Station, where you can take the bullet train to Nanjing.

The university you mentioned has two campuses, one is Minggugong campus. You can take the subway line 1 from the railway station and get off at Xinjiekou Station, then transfer to line 2 to Minggugong Station. Get out of the Exit 1 and walk about 250 yards to the campus.

The other is Jangjun Road campus. You can take the subway airport line to Cuipingshan Station. Take the Exit 2 or 3 and you can easily spot the campus.