spring--启用注解功能

<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:p="http://www.springframework.org/schema/p"
        xmlns:c="http://www.springframework.org/schema/c"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"　　<!--启用注解所需要的-->
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
                http://www.springframework.org/schema/context　　　　　　　　　　<!--启用注解所需要添加到schemaLocation-->
        https://www.springframework.org/schema/context/spring-context.xsd"　　　　<!--启用注解所需要添加到schemaLocation-->
        default-autowire="constructor">
        <context:annotation-config/>　　<!--启用注解-->
</beans>

在所在使用注解的类import导入注解包

import org.springframework.beans.factory.annotation.*;