spring学习----spring注解实现AOP
Spring-----注解方法使用AOP
先建立项目,在spring的xml文件中加入spring AOP的支持.主要是下面红色字部分.
<?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="myInterceptor" name="code">package com.liyu.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;/** * 切面 * */@Aspectpublic class MyInterceptor { @Pointcut("execution (* com.liyu.service.impl.PersonServiceBean.*(..))") private void anyMethod() {}//声明一个切入点 @Before("anyMethod() && args(name)") public void doAccsCheck(String name) { System.out.println("前置通知:"+name); } @AfterReturning(pointcut="anyMethod()",returning="result") public void doAfterReturning(String result) { System.out.println("后置通知:"+result); } @After("anyMethod()") public void doAfter() { System.out.println("最终通知:"); } @AfterThrowing(pointcut="anyMethod()",throwing="e") public void doAfterThrowing(Exception e) { System.out.println("例外通知:"+e); } @Around(("anyMethod()")) //环绕通知 public Object doBasicProfiling(ProceedingJoinPoint pjp)throws Throwable{ System.out.println("进入方法"); Object result=pjp.proceed(); System.out.println("退出方法"); return result; }} 测试类:package com.liyu.test; import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext; import com.liyu.service.PersonService;public class AOPtest { public static void main(String[] args) { ApplicationContext ctx= new ClassPathXmlApplicationContext("beans.xml"); //MyInterceptor mi=(MyInterceptor)ctx.getBean("myInterceptor"); PersonService ps=(PersonService)ctx.getBean("personServiceBean"); ps.save("sss"); }}??
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运行结果:
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2010-6-15 8:27:27 org.springframework.context.support.AbstractApplicationContext prepareRefresh信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@147ee05: display name [org.springframework.context.support.ClassPathXmlApplicationContext@147ee05]; startup date [Tue Jun 15 08:27:27 CST 2010]; root of context hierarchy2010-6-15 8:27:27 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from class path resource [beans.xml]2010-6-15 8:27:28 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@147ee05]: org.springframework.beans.factory.support.DefaultListableBeanFactory@2736862010-6-15 8:27:28 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@273686: defining beans [org.springframework.aop.config.internalAutoProxyCreator,myInterceptor,personServiceBean]; root of factory hierarchy前置通知:sss进入方法我是save()方法.后置通知:null最终通知:退出方法
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我在这里做练习时出错了
PersonService ps=(PersonService)ctx.getBean("personServiceBean");?这里一定要使用的是那个接口.
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