MVC three-tier architecture

1. Create a MAVEN-web engineering

And replace web.xml file

2. Add dependency

3. To write spring The configuration file

4.generator The generated code

4.1 Join the rely on

4.2 Add profile

 4.3 test

5. add to sql journal

5.1 Join the rely on

 5.2 Add profile

6.MVC Three layer architecture

6.1controller layer  

 6.2service layer

 6.3 Inherit the interface and implement its methods