Spring-AOP @AspectJ进阶之绑定类注解对象

package com.xgj.aop.spring.advisor.aspectJAdvance.bindTypeAnnoObj;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

//声明注解的保留期限
@Retention(RetentionPolicy.RUNTIME)
// 声明可以使用该注解的目标类型
@Target(ElementType.TYPE)
// 可以被javadoc此类的工具文档化
@Documented
public @interface Monitor { // 定义注解
    // 声明注解成员
    boolean value() default false;
}

package com.xgj.aop.spring.advisor.aspectJAdvance.bindTypeAnnoObj;

import org.springframework.stereotype.Component;

/**
 * 
 * 
 * @ClassName: Bussiness
 * 
 * @Description: bean使用@Component注解，
 * 
 *               同时标注了@@Monitor注解，所有Bussiness Bean匹配切点， 其@Monitor注解对象将绑定到增强方法中
 * 
 * @author: Mr.Yang
 * 
 * @date: 2017年9月12日 下午4:32:23
 */

@Component
@Monitor
public class Bussiness {

    public void dealBussinessOne() {
        System.out.println("dealBussinessOne executed");
    }

    public void dealBussinessTwo() {
        System.out.println("dealBussinessTwo executed");
    }
}

package com.xgj.aop.spring.advisor.aspectJAdvance.bindTypeAnnoObj;

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

/**
 * 
 * 
 * @ClassName: BindTypeAnnoObjectAspect
 * 
 * @Description: @Aspect标注的切面
 * 
 *               (1)通过(2)处查找出m对应Monitor类型的注解， 因而真实的切点表达式为@within
 *               (Monitor)，当增强方法织入目标 连接点时，增强方法通过m入参可以引用到连接点处的注解对象。
 * 
 * @author: Mr.Yang
 * 
 * @date: 2017年9月12日 下午4:27:55
 */

@Aspect
public class BindTypeAnnoObjectAspect {
    // (1)
    @Before("@within(m)")
    public void bindTypeAnno(Monitor m) { // (2)
        System.out.println("----bindTypeAnnoObject()----");
        System.out.println(m.getClass().getName());
        System.out.println("----bindTypeAnnoObject()----");
    }
}

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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">


<context:component-scan base-package="com.xgj.aop.spring.advisor.aspectJAdvance.bindTypeAnnoObj"/>


<aop:aspectj-autoproxy proxy-target-class="true"/>


<bean class="com.xgj.aop.spring.advisor.aspectJAdvance.bindTypeAnnoObj.BindTypeAnnoObjectAspect"/>

beans>

package com.xgj.aop.spring.advisor.aspectJAdvance.bindTypeAnnoObj;

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

public class BindTypeAnnoObjectAspectTest {
    @Test
    public void test() {
        ApplicationContext ctx = new ClassPathXmlApplicationContext(
                "classpath:com/xgj/aop/spring/advisor/aspectJAdvance/bindTypeAnnoObj/conf-bindTypeAnnoObj.xml");

        Bussiness bussiness = ctx.getBean("bussiness", Bussiness.class);

        bussiness.dealBussinessOne();
        bussiness.dealBussinessTwo();
    }
}

2017-09-12 16:58:15,464  INFO [main] (AbstractApplicationContext.java:583) - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@292898f5: startup date [Tue Sep 12 16:58:15 BOT 2017]; root of context hierarchy
2017-09-12 16:58:15,684  INFO [main] (XmlBeanDefinitionReader.java:317) - Loading XML bean definitions from class path resource [com/xgj/aop/spring/advisor/aspectJAdvance/bindTypeAnnoObj/conf-bindTypeAnnoObj.xml]
----bindTypeAnnoObject()----
com.sun.proxy.$Proxy6
----bindTypeAnnoObject()----
dealBussinessOne executed
----bindTypeAnnoObject()----
com.sun.proxy.$Proxy6
----bindTypeAnnoObject()----
dealBussinessTwo executed