@ Service annotation, @ Service Annotation

@ Service annotation, @ Service Annotation

First, add a line in the applicationContext. xml file:

<Context: component-scan base-package = "com. hzhi. clas"/>

After this line is added, the package under the path will be automatically scanned. If a class carries the @ Service annotation, it will be automatically registered to the Spring container and does not need to be in applicationContext. the xml file defines beans. Similar examples include @ Component, @ Repository, and @ Controller.

For example, the following class:

@ Service ("courseDAO") @ Scope ("prototype") public class CourseDAOImpl extends HibernateDaoSupport implements CourseDAO {......}

The function is equivalent to the following in the applicationContext. xml file:

<Bean id = "courseDAO" class = "com. hzhi. course. dao. CourseDAOImpl" scope = "prototype"> ...... </bean>