Spring AOP环绕通知小例子

深碍√TFBOYSˉ_ 2022-06-15 01:54 190阅读 0赞

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">
        
        <bean id="moocAspect" class="com.mr.three.MoocAspect"></bean>
        
        <bean id="aspectBiz" class="com.mr.three.AspectBiz"/>
        <aop:config>
            
            <aop:aspect id="moocAspectAOP" ref="moocAspect">
                
                <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.