AOP(Spring)

xmlファイル式

メリット：オリジナルソースがない場合に設定できる。コンパイルもいらない。

<?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"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-2.5.xsd

http://www.springframework.org/schema/aop

http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

<context:annotation-config/>

<context:component-scan base-package="com.test"/>

<aop:config>

<aop:pointcut id="myMethod"

expression="execution(public * com.test.service..*.*(..))" />

<aop:aspect id="logAspect" ref="logInterceptor">

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

<aop:after-returning method="afterReturning" pointcut-ref="myMethod"/>

</aop:aspect>

</aop:config>

</beans>

アノテーション式（Spring 2.5から）

メリット：見やすい。

<?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"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-2.5.xsd

http://www.springframework.org/schema/aop

http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

<context:annotation-config/>

<context:component-scan base-package="com.test"/>

<aop:aspectj-autoproxy/>

</beans>

import org.aspectj.lang.ProceedingJoinPoint;

import org.aspectj.lang.annotation.AfterReturning;

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;

@Aspect

@Component

public class LogInterceptor {

@Pointcut("execution(public * com.test.dao..*.*(..))")

public void myMethod(){}

@Before(value="myMethod()")

public void before(){

//do something

}

@AfterReturning("myMethod()")

public void afterReturning(){

//do something

}

@Around(value="myMethod()")

public void around(ProceedingJoinPoint pjp) throws Throwable{

//do something

pjp.proceed();

//do something

}