用Spring配置文件或者注解方式实现AOP

配置文件bean.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"
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
">
<aop:aspectj-autoproxy></aop:aspectj-autoproxy>
<bean id="myIterceptor"
class="com.huqianhao.service.MyIterceptor">
</bean>
<bean id="personService"
class="com.huqianhao.service.impl.PersonServiceBean">
</bean>

<aop:config>
<aop:aspect id="aop" ref="myIterceptor">
<aop:pointcut
expression="execution(* com.huqianhao.service.impl.PersonServiceBean.*(..))"
id="mycut" />
<aop:before method="doAccessCheck" pointcut-ref="mycut" arg-names="name"/>
<aop:after-returning method="doAfterReturning" pointcut-ref="mycut"/>
<aop:after-throwing method="doAfterThrowing" pointcut-ref="mycut"/>
<aop:after method="doAfter" pointcut-ref="mycut"/>
<aop:around method="doAround" pointcut-ref="mycut"/>
</aop:aspect>

</aop:config>
</beans>

MyIterceptor.java

package com.huqianhao.service;

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;

@Aspect
public class MyIterceptor {

// @Pointcut("execution (* com.huqianhao.service.impl.PersonServiceBean.*(..))")
private void anyMethod() {
}

// @Before("anyMethod()&& args(name)")
public void doAccessCheck() {
System.out.println("前置通知:");
}

// @AfterReturning(pointcut = "anyMethod()", returning = "result")
public void doAfterReturning() {
System.out.println("后置通知:");
}

// @AfterThrowing(pointcut = "anyMethod()", throwing = "e")
public void doAfterThrowing() {
System.out.println("例外通知:");
}

// @After("anyMethod()")
public void doAfter() {
System.out.println("最终通知");
}

// @Around("anyMethod()")
public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
System.out.println("进入方法");
Object result = pjp.proceed();
System.out.println("退出方法");
return result;
}

}

package com.huqianhao.service.impl;

import com.huqianhao.service.PersonService;

public class PersonServiceBean implements PersonService {

public void save(String name) {
System.out.println("我是save方法");
// throw new RuntimeException("出��常啦");
}

public String getPersonName(Integer id) {
System.out.println("我是getPersonName方法");
return "XXX";
}

public void update(String name, Integer id) {
System.out.println("我是update方法");

}
}

测试类：

package junit.test;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.huqianhao.service.PersonService;
public class SpringAOPTest {
@Test
public void instanceSpring() {
ApplicationContext context = new ClassPathXmlApplicationContext(
"beans.xml");
PersonService personService = (PersonService) context.getBean("personService");
personService.save("zhangsan");
}
}