Shopping Cart module of Java Web Book Mall Design (3)
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Java
This article continues to share the shopping cart module in Java Web Book Mall for your reference. The specific contents are as follows
Shopping cart storage
Save in session save in cookie save in database
1. Create related classes
Shopping cart structure:
Cartitem: shopping cart entry, including books and quantity. Cart: shopping cart, including a map
2. Add cart entry
3. Empty entry
4. Delete cart entry
5. My shopping cart
top. There is a link in the jsp: my shopping cart
My shopping cart goes directly to / JSP / cart / list JSP, which will display all the entries of the car in the session.
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