(Use knowledge points such as html, jsp, java, servlet, database, etc. to contact relevant design patterns and software engineering knowledge to design a website shopping cart to record shopping orders of different customers, and to query, repair, delete, empty, download and other operations on product information in the shopping cart. Product information is stored in the database. The specific functions to be realized are as follows: 1. Display product display interface, operation success interface, shopping cart display interface, etc. 2: The product information is stored in the database. 3: The product information can be queried, repaired, deleted, emptied, downloaded, etc. 4: Use MVC design pattern (View (jsp), Model (javaBean), Controller (servlet)). 5: Enter access information in the browser to access. 6: The shopping cart information is displayed in pages. " Session 1:01 Principle overview of online shopping cart Session 2:02 Product class realization Session 3:03 Shopping cart function realization Session 4:04 Put shopping cart in Session Session 5:05 Read shopping cart and interface presents Session 6:06 Shopping cart module summary)
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