XML配置Spring注解

1.声明context命名空间

2.<context:annotation-config/>

隐式地向Spring容器注册AutowireAnnotationBeanPostProcessor、CommonAnnotationBeanPostProcessor、

PersistenceAnnotationBeanPostProcessor以及EquiredAnnotationBeanPostProcessor

3.<context:component-scan/>

扫描过滤方式：启用对类包扫描实施注释驱动Bean定义功能，同时启用注释驱动自动注入功能，隐式地向Spring容器注册AutowireAnnotationBeanPostProcessor、CommonAnnotationBeanPostProcessor，故<context:annotation-config>可移除

示例代码：

<span style="font-size:14px;color:#009900;"><context:component-scan base-package="com.demo">    <context:include-filter type="regex"  expression="com.demo.include_package"/>    <context:exclude-filter type="aspectj"   expression="com.demo.exclude_package"/></context:component-scan></span>