三，使用注解配置Spring AOP

一，配置依赖

<repositories>
        <repository>
            <id>aliyun</id>
            <name>aliyun</name>
            <url>https://maven.aliyun.com/repository/public</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.2.6.RELEASE</version>
        </dependency>
        <!--spring aop的底层依赖-->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.5</version>
        </dependency>
    </dependencies>

二，在xml配置文件中初始化IoC容器，定义扫描注解的范围和启动Spring AOP注解模式

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop.xsd">
    <!--初始化IOC容器-->
   <context:component-scan base-package="com.imooc"/>
    <!--启动AOP注解模式-->
    <aop:aspectj-autoproxy/>
</beans>

三，添加注释

1. 给service服务添加service注释，并给属性添加Resource标签
   
2. 给dao类添加repository注释
   
3. 给切面类添加Component注释和aspect注释，并添加环绕通知的注释
   
   另外4个通知也有，但是一般不用
   
4. 运行