Spring 注解AOP 入门

 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/context http://www.springframework.org/schema/context/spring-context-2.5.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"><aop:aspectj-autoproxy /><bean id="myInterceptor" class="cn.itcast.service.MyInterceptor" /><bean id="personService" class="cn.itcast.service.impl.PersonServiceBean" />
</beans>

　

业务Bean，接口就不贴了

package cn.itcast.service.impl;

import cn.itcast.service.PersonService;

public class PersonServiceBean implements PersonService {

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

public void save(String name) {
        System.out.println("我是save()方法");
    }

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

}

实现AOP的类　

package cn.itcast.service;

import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class MyInterceptor {
    @Pointcut("execution (* cn.itcast.service.impl.PersonServiceBean.*(..))")
private void anyMethod() {}

    @Before("anyMethod()")
public void doAccessCheck(String userName) {
        System.out.println("前置通知");
    }
}

测试方法

package junit.test;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.itcast.service.PersonService;

public class SpringAOPTest {
    @Test
public void interceptorTest(){
        ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
        PersonService personService = (PersonService)ctx.getBean("personService");
        personService.save("xxx");
    }
}