You can take Rail Transit Line 3 (Jiangyang North Road-Shanghai South Station) or Line 4 (Yishan Road-Yishan Road) to Yishan Road Station, and transfer to Line 9 (Yangzhong Road- Matsue Minami Station) and get off at Tokyo Station. Ticket price: 6 yuan.
I hope my answer can help you, thank you for your support of the Sagittarius Purple Team.