CHINEESE VISA FOR MOROCCAN

Hello
I want to know if its necassary to make chineese visa
im from moroco and i will take flight air china from Paris to Japan Tokyo making stop in Beijin for 4 hours for to go
and for return will make 7 hours in Shaghai.
my question is, do i need chineese entry permit?

I HOPE YOU ANSWER ME, THANKS