MVC design Pattern ((javaweb) in the database connection pool, the implementation of data in the database additions and deletions to change the operation)

Implementation of design features:

----does not have a business layer that calls DAO directly from the servlet, so there is no transactional operation, so get the connection object directly from the DAO

----using MVC Design Patterns

The technology used in----

。 MVC design Pattern, Jsp,servlet,pojo

。 Database using MySQL

。 Database connection pooling needs to use C3P0 database connection pool

。 Tips on the page need to use jquery

----Technical Difficulties

。 How multiple requests use a servlet

。 How to blur a query

。 How to verify that the user information has been used and give a hint in the case of creation and modification

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MVC design Pattern ((javaweb) in the database connection pool, the implementation of data in the database additions and deletions to change the operation)