Spring AOP实现方式四之注入式AspectJ切面【附源码】

现在我们要讲的是第四种AOP实现之注入式AspectJ切面

通过简单的配置就可以实现AOP了。

源码结构：

1、首先我们新建一个接口，love 谈恋爱接口。

package com.spring.aop;

/**

 * 谈恋爱接口

 *

 * @author Administrator

 *

 */

public interface Love

{

    /*

     * 谈恋爱方法

     */

    void fallInLove();

}
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	font-family: consolas, "Courier New", courier, monospace;

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.csharpcode pre { margin: 0em; }

.csharpcode .rem { color: #008000; }

.csharpcode .kwrd { color: #0000ff; }

.csharpcode .str { color: #006080; }

.csharpcode .op { color: #0000c0; }

.csharpcode .preproc { color: #cc6633; }

.csharpcode .asp { background-color: #ffff00; }

.csharpcode .html { color: #800000; }

.csharpcode .attr { color: #ff0000; }

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	margin: 0em;

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{

	font-size: small;

	color: black;

	font-family: consolas, "Courier New", courier, monospace;

	background-color: #ffffff;

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.csharpcode pre { margin: 0em; }

.csharpcode .rem { color: #008000; }

.csharpcode .kwrd { color: #0000ff; }

.csharpcode .str { color: #006080; }

.csharpcode .op { color: #0000c0; }

.csharpcode .preproc { color: #cc6633; }

.csharpcode .asp { background-color: #ffff00; }

.csharpcode .html { color: #800000; }

.csharpcode .attr { color: #ff0000; }

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{

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	width: 100%;

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2、我们写一个Person类实现Love接口

package com.spring.aop;

/**

 * 人对象

 * @author luwenbin006@163.com

 *

 */

public class Person implements Love

{

    /*

     * 重写谈恋爱方法

     * @see com.spring.aop.Love#fallInLove()

     */

    public void fallInLove()

    {

        System.out.println("谈恋爱了...");

    }

}

3、下面我们来写aop 注解通知类分别是配置中的执行前

执行后执行前后执行抛出异常

package com.spring.aop;

import org.aspectj.lang.JoinPoint;

import org.aspectj.lang.ProceedingJoinPoint;

import org.aspectj.lang.annotation.After;

import org.aspectj.lang.annotation.AfterThrowing;

import org.aspectj.lang.annotation.Around;

import org.aspectj.lang.annotation.Aspect;

import org.aspectj.lang.annotation.Before;

/**

 * 注解方式 aop通知类

 * @author luwenbin006@163.com

 *

 */

public class LoveHelper

{

    //在调用方法之前执行 执行拦截包com.spring.aop.*下所有的方法

    public void doBefore(JoinPoint point) throws Throwable

    {

        System.out.println("谈恋爱之前必须要彼此了解！");

    }

    //在调用方法前后执行

    public Object doAround(ProceedingJoinPoint point) throws Throwable

    {

        if(point.getArgs().length>0)

        {

            return point.proceed(point.getArgs());

        }else

        {

            return point.proceed();

        }

    }

    //在调用方法之后执行

    public void doAfter(JoinPoint point) throws Throwable

    {

        System.out.println("我们已经谈了5年了，最终还是分手了！");

        //System.out.println("我们已经谈了5年了，最终步入了结婚的殿堂！");

    }

    //当抛出异常时被调用

    public void doThrowing(JoinPoint point, Throwable ex)

    {

        System.out.println("doThrowing::method "

                + point.getTarget().getClass().getName() + "."

                + point.getSignature().getName() + " throw exception");

        System.out.println(ex.getMessage());

    }

}

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{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

4、配置好application.xml 配置好AOP注入模式和相应的bean aop通知类。

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

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

    xsi:schemaLocation="

        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd

        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd

        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd

        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd

        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">

    <!-- 配置bean -->

    <bean id="person" class="com.spring.aop.Person">

    </bean>

    <!-- 配置通知方法类 -->

    <bean id="loveHelper" class="com.spring.aop.LoveHelper">

    </bean>

    <aop:config>

        <aop:aspect id="configAspect" ref="loveHelper">

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

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

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

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

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

            <aop:after-throwing pointcut-ref="loveServices"

                method="doThrowing" throwing="ex" />

        </aop:aspect>

    </aop:config>

</beans>

5、通过测试类测试下我们的代码~~~

package com.spring.aop;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.aop.Love;

/**

 * aop测试方法类

 * @author luwenbin006@163.com

 *

 */

public class LoveTest

{

    public static void main(String[] args)

    {

        //加载spring配置文件

        ApplicationContext appCtx = new ClassPathXmlApplicationContext(

                "applicationContext.xml");

        //得到person对象

        Love love = (Love) appCtx.getBean("person");

        //调用谈恋爱方法

        love.fallInLove();

    }

}

6、看控制台输出结果调用了我们定义的aop拦截方法~~~ ok了

7、源码下载地址：源码下载