32、Spring5之AOP操作-AspectJ配置文件

1、创建两个类，增强类和被增强类，创建方法

package com.atguigu.spring5.aopxml;

public class Book {
    public void buy() {
        System.out.println("buy...");
    }
}

package com.atguigu.spring5.aopxml;

public class BookProxy {
    public void before() {
        System.out.println("before...");
    }
}

2、在spring配置文件中创建两个类对象

<?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:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://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 http://www.springframework.org/schema/aop/spring-aop.xsd">

<!--创建对象-->
    <bean id="book" class="com.atguigu.spring5.aopxml.Book"></bean>
    <bean id="bookProxy" class="com.atguigu.spring5.aopxml.BookProxy"></bean>
</beans>

3、在spring配置文件中配置切入点

<?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:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://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 http://www.springframework.org/schema/aop/spring-aop.xsd">

<!--创建对象-->
    <bean id="book" class="com.atguigu.spring5.aopxml.Book"></bean>
    <bean id="bookProxy" class="com.atguigu.spring5.aopxml.BookProxy"></bean>
<!--  配置aop增强  -->
    <aop:config>
        <!--    切入点    -->
        <aop:pointcut id="p" expression="execution(* com.atguigu.spring5.aopxml.Book.buy(..))"/>
        <!--    配置切面    -->
        <aop:aspect ref="bookProxy">
            <!--      增强作用在具体的方法上      -->
            <aop:before method="before" pointcut-ref="p"></aop:before>
        </aop:aspect>
    </aop:config>
</beans>

测试代码

@Test
public void testAopxml() {
    ApplicationContext context = new ClassPathXmlApplicationContext("bean2.xml");
    Book book = context.getBean("book", Book.class);
    book.buy();
}
//得出的结果
//before...
//buy...