Java student information management system design (2)

The student information of this example is added to the transaction entering the database (the transaction can be committed and rolled back, which can be improved with local threads)

Main page index jsp

tool kit

Tool for obtaining database connection connutils5 java

agent

Agent 2: there is no need for forced transfer, but it represents all

annotation

Agent 3: implement transactions with annotations, and use transactions if necessary

Resource file JDBC properties

The servlet layer of the study layer cqueryservlet java

Service layer C interface of study layer:

Implementation class

The Dao layer C of the study layer is separated from the study interface C. one table corresponds to one Dao to prepare for the framework

Student implementation class

Book interface

Book implementation class

Value object Student object

Book object

Display the student information page JSP / show jsp

design sketch:

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips.