Spring AOP环绕通知小例子

不带参数的：

/**
 * 日志类
 */
public class MoocAspect {
    public Object around(ProceedingJoinPoint pjp){
        Object obj=null;
        try {
            System.out.println("MoocAspect around 1.");
            obj=pjp.proceed();
            System.out.println("MoocAspect around 2.");
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
        return obj;
    }
    public Object aroundInit(ProceedingJoinPoint pjp,String bizName,int times){
        System.out.println(bizName+"  "+times);
        Object obj=null;
        try {
            System.out.println("MoocAspect aroundinit 1.");
            obj=pjp.proceed();
            System.out.println("MoocAspect aroundinit 2.");
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
        return obj;
    }
}

/**
 * 业务类
 */
public class AspectBiz {
    public void biz(){
        System.out.println("AspectBiz biz.");
    }
    public void init(String bizName,int times){
        System.out.println("AspectBiz init:"+bizName+"  "+times);
    }
}

<?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"
       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">
    <!-- 我们要插入的日志等-->
    <bean id="moocAspect" class="com.mr.three.MoocAspect"></bean>
    <!--业务bean-->
    <bean id="aspectBiz" class="com.mr.three.AspectBiz"/>
    <aop:config>
        <!-- 用到哪个处理类-->
        <aop:aspect id="moocAspectAOP" ref="moocAspect">
            <!-- 切点，要插入到什么地方，expression可以为包，类和方法-->
            <aop:pointcut expression="execution(* com.mr.three.*Biz.*(..))" id="moocPointcut"/>
            <aop:around method="around" pointcut-ref="moocPointcut"/>
            <aop:around method="aroundInit" pointcut="execution(* com.mr.three.AspectBiz.init(String,int))
                    and args(bizName,times)"/>
        </aop:aspect>
    </aop:config>
</beans>

@Test
public void AroundInitTest(){
    ApplicationContext context=new ClassPathXmlApplicationContext("spring-injection.xml");
    AspectBiz biz=(AspectBiz)context.getBean("aspectBiz");
    biz.init("占旭鹏",20);
}

MoocAspect around 1.

张三  20

MoocAspect aroundinit 1.

AspectBiz init:张三  20

MoocAspect aroundinit 2.

MoocAspect around 2.