SSM build step

1. database
2. Create a maven project - to create a maven skeleton
3.  Package guide - ssm - Pom.xml
4.  Create a directory structure - based hierarchical development mvc

Bean – dao – service - controller 

1. According to the database to write bean
2. To write dao (dao; impl)
3. Because Mybatis instead daoImpl, so go to configure Spring + Mybatis profile - ApplicationContext.xml
   1. Spring – 【→bean  - dao（impl） - service（impl） - controller  - 页面← 】
4. Write mapper.xml
5. Writing service (service + impl)
6.  Configure Spring - MVC.xml and web.xml
7.  Import Page
8.   Write Controller

Create a file