@dyj

1、依赖

<dependencies>    <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.2.5.RELEASE</version>    </dependency>    <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.3.7.RELEASE</version>    </dependency>    <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope>    </dependency></dependencies>

2.application-config.xml

<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:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">    <bean id="Calculation" class="com.hncj.demo.service.CalculationImpl"/>    <!---->    <bean id="AnnoAdvice" class="com.hncj.demo.anno.AnnoAdvice" />    <aop:aspectj-autoproxy></aop:aspectj-autoproxy></beans>

3.目录结构

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4、service

package com.hncj.demo.service;public interface Calculation {    public void add();    public void s();    public void m();    public void d();}

package com.hncj.demo.service;public class CalculationImpl implements Calculation {    @Override    public void add() { System.out.println("a");    }    @Override    public void s() { System.out.println("s");    }    @Override    public void m() { System.out.println("m");    }    @Override    public void d() { System.out.println("d");    }}

5、切面类

package com.hncj.demo.anno;import org.aspectj.lang.annotation.After;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Before;import org.aspectj.lang.annotation.Pointcut;@Aspectpublic class AnnoAdvice {    @Pointcut("execution(* com.hncj.demo.service.CalculationImpl.*(..))")    public void pointcut(){    }//    之前    @Before("pointcut()")    public void before(){ System.out.println("前置");    }//    之后    @After("pointcut()")    public void after(){ System.out.println("后置");    }}

6、测试类

import com.hncj.demo.service.Calculation;import org.junit.Test;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Mytest {    @Test    public void annoTest(){ ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("application-config.xml"); Calculation calculation = context.getBean("Calculation", Calculation.class); calculation.add();    }}