Travel form shanghai to nanjing to go to the Normal Uni SUIYUAN CAMPUS

Hi every so I would like to know which is the most convenient and easy way to arrive at NJ by train and which railway station should I take to go to my university which is NJ Normal University ? Some told me to go to Shanghai Railway Station to catch a high speed train to go to NJ Railway Station then take a taxi but there is so many other railway in Shanghai im lost Hongqiao West South, please help me thank you