SpringAOP技术学习---Day2

本篇博客知识点：

具体实例

package cn.hncu2.v2;
/**
* @author<a href="mailto:953801304@qq.com">胡龙华</a>
*/
public class Person {
public void run(){
System.out.println("I'm running!");
}
public void Hello(){
System.out.println("Hello,Spring!");
}
}

public class Demo2 {
/*
* 切点语言:
* 1) 框架: execution( 切点语言表达式  )
* 2) 表达式格式:  返回类型   包名.[子包名.]类名.方法名(参数类型列表)
* 3) "."号是包名之间 或 包名与类名之间 或 类名与方法名 之间的间隔符
* 4) ".."在包路径位置代表的是任意深的目录，在参数类型列表中代表的是任意个数与类型的参数
* 5) "*"号 是操作系统中的通配符
*/
@Test
public void test1(){
Person p = new Person();

ProxyFactoryBean factory = new ProxyFactoryBean();

factory.setTarget(p);

AspectJExpressionPointcut cut = new AspectJExpressionPointcut();

cut.setExpression("execution( void cn.hncu2.v2.Person.run() )");

// 设置切点的表达式---切点语言
//      cut.setExpression("execution( void cn.hncu.v2.Person.run() )"); // 写死的
Advice advice = new MethodInterceptor() {

@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
System.out.println("---------");
Object obj = invocation.proceed();
System.out.println("---------");
return obj;
}
};
Advisor advisor = new DefaultPointcutAdvisor(cut,advice);
factory.addAdvisor(advisor);

Person p2 = (Person) factory.getObject();
p2.run();
p2.Hello();
}
}

<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 自动代理 -->
<bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"></bean>

<bean id="advisor" class="org.springframework.aop.aspectj.AspectJExpressionPointcutAdvisor">
<property name="expression" value="execution(void cn.hncu2.v2.Person.run() )"/>
<property name="advice">
<bean class="cn.hncu2.v2.AroundAdvice"></bean>
</property>
</bean>

<bean id="p" class="cn.hncu2.v2.Person"></bean>
</beans>