Annotation-based bean configuration and annotation bean Configuration

Annotation-based bean configuration and annotation bean Configuration

Annotation-based bean configuration mainly involves applicationContext. xml configuration, DAO layer class annotation, and Service layer class annotation.

1. Configure the following information in the applicationContext. xml file:

<! -- Define the scan path for the package stored in the service layer code -->
<Context: component-scan base-package = "org.mainstudio.com. service, org.mainstudio.com. dao"/>

The base-package includes the package where the annotation class is to be created. Multiple packages are separated by commas.

2. DAO layer class Annotation

@ Repository ("commodityDao ")
Public class CommodityDaoImpl implements CommodityDao

3. Service layer Annotation

@ Service ("commodityService ")
Public class CommodityServiceImpl implements CommodityService