注解方式的AspectJ实现方式

BookService类

package com.hkd.service;public interface BookService {public void buyJava();public int comment();void buy();
}

BookServiceImp类

package com.hkd.service;import org.springframework.stereotype.Component;@Component("bs")
public class BookServiceImp implements BookService{@Overridepublic void buyJava() {System.out.println("买Java书");}@Overridepublic int comment() {System.out.println("========书评");return 1;}@Overridepublic void buy() {System.out.println("=======买书");}
}

MyAdvice类

package com.hkd.tzhs;import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
import org.aspectj.lang.ProceedingJoinPoint;
@Aspect
@Component
public class MyAdvice {@Pointcut("execution(* com.hkd.service.BookServiceImp.*(..))")public  void mypointCut(){}@Pointcut("mypointCut()")public void mybefore(){System.out.println("前置");}@Pointcut("mypointCut()")public void myafter(){System.out.println("出现异常执行的后置");}@Pointcut("mypointCut()")public void myaftering(){System.out.println("出现异常不执行的后置");}@Pointcut("mypointCut()")public Object myarround(ProceedingJoinPoint p) throws Throwable {System.out.println("执行环绕");System.out.println("环绕前置");Object obj=p.proceed();System.out.println("环绕后置");return obj;}}

spring.xml

<?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"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.hkd.service"/><context:component-scan base-package="com.hkd.tzhs"/><aop:aspectj-autoproxy/>
</beans>

测试类

import com.hkd.service.BookService;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class Test {@org.junit.Testpublic void testAspect(){BeanFactory beanFactory=new ClassPathXmlApplicationContext("spring.xml");BookService bookService= (BookService) beanFactory.getBean("bs");bookService.buyJava();bookService.buy();bookService.comment();}
}