spring aop 功能初次使用（註解方式）

前期準備

spring3.0版本發佈包裏沒有包含相應的依賴包，因此需手動加入，以下
aspectjrt.jar
aspectjweaver.jar
aopalliance-1.0.jar

要想使用spring aop 須配置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 ">

<!--

開啓自動掃描功能,若是類包含 @Component, @Repository, @Service, and @Controller,@Required, @Autowired, @PostConstruct, @PreDestroy, @Resource, @PersistenceContext and
 @PersistenceUnit這些註解，將會被spring容易管理，而且提供相應的注入

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

<!--

開啓基於@AspectJ 的aop，proxy-target-class默認值爲false，基於接口的代理，不然是基於類的代理，依賴cglib包

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

聲明一個aop類

java代碼

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 {     /**      * 聲明一個切入點，表達式爲 "攔截全部返回值類型，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("後置通知"+result);     }     @After(value="anyMothed()")     public void after(){         System.out.println("最後後置通知");     }     @AfterThrowing(pointcut="anyMothed()",throwing="e")     public void afterThrows(Exception e){         System.out.println("異常通知:"+e.getMessage());     }     @Around("anyMothed()")      public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable{          System.out.println("環繞通知  開始");          Object obj = pjp.proceed();          System.out.println("環繞通知  結束");          return obj;      }      }