前期准备

spring3.0版本发布包里没有包含相应的依赖包，所以需手动加入，如下

aspectjrt.jar aspectjweaver.jar aopalliance-1.0.jar

要想使用spring aop 须配置xml文件

<?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:context="http://www.springframework.org/schema/context"     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-3.0.xsd              http://www.springframework.org/schema/context              http://www.springframework.org/schema/context/spring-context-3.0.xsd              http://www.springframework.org/schema/aop              http://www.springframework.org/schema/aop/spring-aop-3.0.xsd             http://www.springframework.org/schema/tx             http://www.springframework.org/schema/tx/spring-tx-3.0.xsd "> <!--

开启自动扫描功能,如果类包含 @Component, @Repository, @Service, and @Controller,@Required, @Autowired, @PostConstruct, @PreDestroy, @Resource, @PersistenceContext and

 @PersistenceUnit这些注解，将会被spring容易管理，并且提供相应的注入

-->

    <context:component-scan base-package="sping.*"></context:component-scan>

<!--

开启基于@AspectJ 的aop，proxy-target-class默认值为false，基于接口的代理，否则是基于类的代理，依赖cglib包

-->

    <aop:aspectj-autoproxy  proxy-target-class="false"></aop:aspectj-autoproxy> </beans>

声明一个aop类

java代码

import org.aspectj.lang.ProceedingJoinPoint;

import org.aspectj.lang.annotation.After; import org.aspectj.lang.annotation.AfterReturning; import org.aspectj.lang.annotation.AfterThrowing; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; import org.springframework.stereotype.Component; @Component(value="logIntercept") @Aspect() public class InterceptOfAspectj {     /**      * 声明一个切入点，表达式为 "拦截所有返回值类型，所有包下所有方法"      */     @Pointcut(value="execution(* sping.beans.service..*.*(..))")     public void anyMothed(){             }         @Before(value="anyMothed()")     public void before(){         System.out.println("前置通知");     }         @Before(value="anyMothed()&&args(myname)")     public void beforeParam(String myname){         System.out.println("前置通知"+myname);     }     @AfterReturning(pointcut="anyMothed()",returning="result")     public void afrerReturn(Object result){         System.out.println("后置通知"+result);     }     @After(value="anyMothed()")     public void after(){         System.out.println("最后后置通知");     }     @AfterThrowing(pointcut="anyMothed()",throwing="e")     public void afterThrows(Exception e){         System.out.println("异常通知:"+e.getMessage());     }     @Around("anyMothed()")      public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable{          System.out.println("环绕通知  开始");          Object obj = pjp.proceed();          System.out.println("环绕通知  结束");          return obj;      }      }