AspectJ Aop 面向切面

依赖包：

需要依赖包

如果是maven管理项目的，直接pom文件里面依赖就可以了，如果是手动下载jar文件的需要下载aspectjtools.jar

<dependency>

<groupId>org.aspectj</groupId>

<artifactId>aspectjtools</artifactId>

<version>1.6.10</version>

</dependency>

xml形式的

在spring的配置文件applicationContext.xml文件中添加aop

<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"

xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc" 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/tx

http://www.springframework.org/schema/jdbc

http://www.springframework.org/schema/aop 

http://www.springframework.org/schema/aop/spring-aop-3.1.xsd 

http://www.springframework.org/schema/jdbc/spring-jdbc.xsd"

default-autowire="byName">

 <aop:config>  

        <aop:aspect id="servicesAop" ref="aspectBean">  

            <!-- 配置com.pinganfu包下所有类或接口的所有方法   -->

            <aop:pointcut id="businessService" expression="execution(* com.test.*.*(..))" /> 

            <aop:before pointcut-ref="businessService" method="doBefore"/>  

            <aop:after pointcut-ref="businessService" method="doAfter"/>

            <aop:around pointcut-ref="businessService" method="doAround"/>  

         <aop:after-returning pointcut-ref="businessService" method="afterReturning" returning="retval" arg-names="joinPoint,retval"/>

            <aop:after-throwing pointcut-ref="businessService" method="doThrowing" throwing="ex"/>  

        </aop:aspect>  

    </aop:config>  

    

    <bean id="aspectBean" class="com.test.AopTest /> 

</beans>

java类：

import java.net.InetAddress;

import java.net.UnknownHostException;

import org.aspectj.lang.JoinPoint;

import org.aspectj.lang.ProceedingJoinPoint;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * 

 */

public class AopTest{

public void doBefore(JoinPoint jp) {

System.out.println("执行方法前");

}

public Object doAround(ProceedingJoinPoint pjp) throws Throwable {

System.out.println("执行方法");

}

public void doAfter(JoinPoint jp) {

System.out.println("执行方法后");

}

public void afterReturning(JoinPoint joinPoint, String retVal) {

System.out.println("返回值");

}

public void doThrowing(JoinPoint jp, Throwable ex) {

System.out.println("产生异常");

}

}

以上就是xml形式的。