Spring的applicationContext.xml代码：<?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" xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"><!-- 配置目标对象：被增强的对象 --><bean id="customerDao" class="cn.muc.spring.demo3.CustomerDaoImpl"></bean><!-- 将切面类交给Spring管理 --><bean id="myAspect" class="cn.muc.spring.demo3.MyAspectXML"></bean><!-- 通过AOP配置完成对目标类产生代理 --><aop:config><!-- 配置表达式：哪些类的哪些方法需要进行增强 --><aop:pointcut expression="execution(* cn.muc.spring.demo3.CustomerDaoImpl.save(..))" id="pointcut1"/><aop:pointcut expression="execution(* cn.muc.spring.demo3.CustomerDaoImpl.delete(..))" id="pointcut2"/><aop:pointcut expression="execution(* cn.muc.spring.demo3.CustomerDaoImpl.update(..))" id="pointcut3"/><aop:pointcut expression="execution(* cn.muc.spring.demo3.CustomerDaoImpl.find(..))" id="pointcut4"/><!-- 配置切面（通知） --><aop:aspect ref="myAspect"><!-- 前置通知 --><aop:before method="checkPri" pointcut-ref="pointcut1"/><!-- 后置通知，returning中自定义的字符串表示切入点（原方法）返回值的名字--><aop:after-returning method="writeLog" pointcut-ref="pointcut2" returning="result"/><!-- 环绕通知 --><aop:around method="watch" pointcut-ref="pointcut3"/><!-- 异常抛出通知 --><aop:after-throwing method="afterTrowing" pointcut-ref="pointcut4" throwing="ex"/><!-- 最终通知 --><aop:after method="after" pointcut-ref="pointcut4"/></aop:aspect></aop:config>
</beans>Dao接口代码：package cn.muc.spring.demo3;public interface CustomerDao {public void save();public String delete();public void update();public void find();
}

Dao实现类代码：package cn.muc.spring.demo3;public class CustomerDaoImpl implements CustomerDao {@Overridepublic void save() {System.out.println("保存方法被调用了。。。");}@Overridepublic String delete() {System.out.println("删除方法被调用了。。。");return "后置通知获得方法返回值";}@Overridepublic void update() {System.out.println("更新方法被调用了。。。");}@Overridepublic void find() {System.out.println("查找方法被调用了。。。");int a = 1 / 0;}}切面类代码：package cn.muc.spring.demo3;import org.aspectj.lang.ProceedingJoinPoint;/*** 切面类* @author xufaye**/
public class MyAspectXML {/*** 前置通知*/public void checkPri() {System.out.println("权限校验==================");}/*** 后置通知：可以获得方法返回值（通过传入对象类型的参数）*/public void writeLog(Object result) {System.out.println("日志记录===============" + result);}/*** 环绕通知：比如可以用于性能监控* @throws Throwable */public Object watch(ProceedingJoinPoint joinPoint) throws Throwable {System.out.println("环绕前通知=========");Object obj = joinPoint.proceed();System.out.println("环绕后通知=========");return obj;}/*** 异常抛出通知*/public void afterTrowing(Throwable ex) {System.out.println("异常抛出通知=========并获得异常信息：" + ex.getMessage());}/*** 最终通知：无论有没有异常都会执行，相当于finally代码块中的内容*/public void after() {System.out.println("最终通知===========");}
}测试类代码：package cn.muc.spring.demo3;import javax.annotation.Resource;import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;/*** AOP入门* @author xufaye**/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class SpringDemo3 {@Resource(name="customerDao")private CustomerDao customerDao;@Testpublic void demo1() {customerDao.save();customerDao.delete();customerDao.update();customerDao.find();}
}

Java中AOP开发配置入门案例开发所需引入的jar包com.springsource.org.aopalliance-1.0.0.jar【AOP联盟】com.springsource.org.apache.commons.logging-1.1.1.jar【日志包】com.springsource.org.apache.log4j-1.2.15.jar【日志包】com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar【aspectj】spring-aop-4.2.4.RELEASE.jar【spring整合AOP包】spring-aspects-4.2.4.RELEASE.jar【spring整合aspectj包】spring-beans-4.2.4.RELEASE.jar【spring基础包】spring-context-4.2.4.RELEASE.jar【spring基础包】spring-core-4.2.4.RELEASE.jar【spring基础包】spring-expression-4.2.4.RELEASE.jar【spring基础包】spring-test-4.2.4.RELEASE.jar【spring整合Junit包】