spring aop 功能初次使用（注解方式）

前期准备

spring3.0版本发布包里没有包含相应的依赖包，因此需手动加入，以下
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,若是类包含 @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，而且提供相应的注入

-->
    <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，不然是基于类的代理，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 "拦截全部返回值类型，全部包下全部方法"      */     @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;      }      }