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AOP Before Advice After Advice Around Advice Throw Advice

Before Advice:

package com.hwp.aop.adviceDemo;

import java.lang.reflect.Method;

import org.springframework.aop.MethodBeforeAdvice;

public class BeforeAdviceDemo implements MethodBeforeAdvice {

public void before(Method method, Object[] args, Object target)

throws Throwable {

System.out.println("在方法運行前，先運行");

}

After Advice:

package com.hwp.aop.adviceDemo;

import java.lang.reflect.Method;

import org.springframework.aop.AfterReturningAdvice;

public class AfterAdviceDemo implements AfterReturningAdvice{

public void afterReturning(Object arg0, Method arg1, Object[] arg2,

Object arg3) throws Throwable {

System.out.println("方法執行后

.");

}

Round Advice:

package com.hwp.aop.adviceDemo;

import org.aopalliance.intercept.MethodInterceptor;

import org.aopalliance.intercept.MethodInvocation;

public class AroundAdviceDemo implements MethodInterceptor {

public Object invoke(MethodInvocation arg0) throws Throwable {

System.out.println("在round方法里，方法開始前

..");

Object result = null;

try {

result = arg0.proceed();

} finally {

System.out.println("在round方法里，方法結束后");

}

return result;

}

Throw Advice:

package com.hwp.aop.adviceDemo;

import java.lang.reflect.Method;

import org.springframework.aop.ThrowsAdvice;

public class ThowAdviceDemo implements ThrowsAdvice {

public void afterThrowing(Method method, Object[] args, Object target,

Throwable subclass) {

System.out.println("異常拋出后

..");

}

beans.xml:

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

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

http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

<bean id="logBeforeAdvice"

class="com.hwp.aop.adviceDemo.BeforeAdviceDemo" />

<bean id="logAfterAdvice"

class="com.hwp.aop.adviceDemo.AfterAdviceDemo" />

<bean id="logRoundAdvice"

class="com.hwp.aop.adviceDemo.AroundAdviceDemo" />

<bean id="throwAdvice"

class="com.hwp.aop.adviceDemo.ThowAdviceDemo" />

<bean id="helloProxy"

class="org.springframework.aop.framework.ProxyFactoryBean">

<property name="proxyInterfaces"

value="com.hwp.aop.adviceDemo.IHello" />

<list>

<value>logBeforeAdvice</value>

<value>logAfterAdvice</value>

<value>logRoundAdvice</value>

<value>throwAdvice</value>

</list>

</property>

</bean>

</beans>

Demo:

package com.hwp.aop.adviceDemo;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringAOPDemo {

public static void main(String[] args){

ApplicationContext context =

new ClassPathXmlApplicationContext("beans-beforeAdvice.xml");

IHello helloProxy = (IHello) context.getBean("helloProxy");

try{

helloProxy.hello("惠萬鵬");

}catch(Exception e){

//e.printStackTrace();

}

收工....

posted on 2008-04-13 14:37 HUIKK 閱讀(947) 評論(0) 編輯收藏所屬分類: Spring

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