I'm a Yemeni citizen my passport occupation is student , I want to get visa to PRC

I am a Yemeni citizen ,I would like to come to Djibouti and get visa to PRC from China embassy in Djibouti.
I want to visit for PRC to attend the China international exhibition. I want to start my small own business and bring some goods from PRC to Yemen. Where's my occupation in my passport is student.

"My question is ,could I get a visa to PRC if I come to Djibouti?

And what are the requireds that you need for that ? Please my majesty send to me answers to prepare my self to travel if possible.

Best Regards
Mohamad Almaqtari