Travel from UK to Cruise from Shanghai to Japan then return to Shanghai to fly back to UK

Hi, Can I apply entry permit online? I hold a UK passport, and My Husband with a Malaysian Passport. We will be travelling from UK flying in to Shanghai Pu Dong on the 28th June 2018 (1.20am) , and will be boarding from Shanghai Boashan on the 28th June 2018 (4.45pm) on a Cruise for 5 days, and Return to BoaShan on the 3rd July 2018 and striaght to Shanghai Pu Dong Airport to Fly back to UK. What Visa do I need for this trip? Please kindly advice.