Do I need to apply for a visa, or am I ok since I'm only staying for a day and a half (two times)?

Hello,

I'm a Belgian tourist flying from Brussels to Shanghai Dupong Airport on the 24th of december (stop over in Beijing for two hours) with Hainan Airlines. It's a retour ticket, I fly back on feb 17 from Shanghai Hongqiao (again stop over in Beijing for two hours) with Hainan Airlines. I will only stay on 25-26 dec and 16-17 feb. I have booked a retour flight to Auckland (NZ) on dec 26, returning to Shanghai on 15 feb in Auckland (stopover of two hours in Sydney). So I'm staying in Shanghai two times (less than 72 hours). Thanks in advance!

Kind regards,
Ellen Van Hoecke