Spring课程 Spring入门篇 5-5 advice应用（下）

代码演练：

2　　　　代码演练

2.1　　环绕通知（不带参数）

2.2　　环绕通知（带参数）

2　　　　代码演练

2.1　　环绕通知（不带参数）

实体类：

package com.imooc.aop.schema.advice.biz;

public class AspectBiz {
    
    public void biz(){
        System.out.println("MoocAspect biz");
//        throw new RuntimeException();
    }

}

配置文件：

<?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-4.0.xsd">


<bean id = "moocAspect" class = "com.imooc.aop.schema.advice.MoocAspect"></bean>
<bean id = "AspectBiz" class = "com.imooc.aop.schema.advice.biz.AspectBiz"></bean>

<aop:config>
    <aop:aspect  id="moocAspectAOP" ref="moocAspect">
<!--     声明切入点：从哪里开始执行 -->
<!--     执行com.imooc.aop.schema.advice.biz包下的所有Biz结尾的java类中的所有方法时 -->
        <aop:pointcut expression="execution(* com.imooc.aop.schema.advice.biz.*Biz.*(..))" id="moocPointCut"/>
        <aop:before method="before" pointcut-ref="moocPointCut"/>
        <aop:after-returning method="afterreturning" pointcut-ref="moocPointCut"/>
        <aop:after-throwing method="throwing" pointcut-ref="moocPointCut"/>
        <aop:after method="after" pointcut-ref="moocPointCut"/>

　　　　　　<aop:around method="around" pointcut-ref="moocPointCut"/>

    </aop:aspect>
</aop:config>

</beans>

通知类：

package com.imooc.aop.schema.advice;

import org.aspectj.lang.ProceedingJoinPoint;

public class MoocAspect {
    
    public void before(){
        System.out.println("before");
    }
    
    public void afterreturning(){
        System.out.println("after returning");
    }

    public void throwing(){
        System.out.println("throw");
    }
    
    public void after(){
        System.out.println("Say Love me");
    }
    
    public Object around(ProceedingJoinPoint pjp){
        Object obj = null;
        try {
            System.out.println("MoocAspect Around Before");
            obj = pjp.proceed();
            System.out.println("MoocAspect Around After");
        } catch (Throwable e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return obj;
    }
}

测试类：

package com.imooc.test.aop;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.BlockJUnit4ClassRunner;

import com.imooc.aop.schema.advice.biz.AspectBiz;
import com.imooc.test.base.UnitTestBase;

@RunWith(BlockJUnit4ClassRunner.class)
public class TestAOPSchemaAdvice extends UnitTestBase {
    
    public TestAOPSchemaAdvice(){
        super("classpath:spring-aop-schema-advice.xml");
    }
    
    @Test
    public void testBiz(){
        AspectBiz aBiz = super.getbean("AspectBiz");
        aBiz.biz();
    }

}

打印日志：

四月 17, 2019 9:17:34 下午 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@409c8a10: startup date [Wed Apr 17 21:17:34 CST 2019]; root of context hierarchy
四月 17, 2019 9:17:35 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [spring-aop-schema-advice.xml]
before
MoocAspect Around Before
MoocAspect biz
MoocAspect Around After
Say Love me
after returning
四月 17, 2019 9:17:38 下午 org.springframework.context.support.ClassPathXmlApplicationContext doClose
信息: Closing org.springframework.context.support.ClassPathXmlApplicationContext@409c8a10: startup date [Wed Apr 17 21:17:34 CST 2019]; root of context hierarchy

2.2　　环绕通知（带参数）

实体类：

package com.imooc.aop.schema.advice.biz;

public class AspectBiz {
    
    public void biz(){
        System.out.println("MoocAspect biz");
//        throw new RuntimeException();
    }
    
    public void init(String bizName,int times){
        System.out.println("AspectBiz init:"+ bizName + " "+times);
    }
}

xml配置：

<?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-4.0.xsd">


<bean id = "moocAspect" class = "com.imooc.aop.schema.advice.MoocAspect"></bean>
<bean id = "AspectBiz" class = "com.imooc.aop.schema.advice.biz.AspectBiz"></bean>

<aop:config>
    <aop:aspect  id="moocAspectAOP" ref="moocAspect">
<!--     声明切入点：从哪里开始执行 -->
<!--     执行com.imooc.aop.schema.advice.biz包下的所有Biz结尾的java类中的所有方法时 -->
<!--         <aop:pointcut expression="execution(* com.imooc.aop.schema.advice.biz.*Biz.*(..))" id="moocPointCut"/> -->
<!--         <aop:before method="before" pointcut-ref="moocPointCut"/> -->
<!--         <aop:after-returning method="afterreturning" pointcut-ref="moocPointCut"/> -->
<!--         <aop:after-throwing method="throwing" pointcut-ref="moocPointCut"/> -->
<!--         <aop:after method="after" pointcut-ref="moocPointCut"/> -->
<!--         <aop:around method="around" pointcut-ref="moocPointCut"/> -->
<aop:around method="aroundInit" pointcut="execution(* com.imooc.aop.schema.advice.biz.AspectBiz.init(String,int)) and args(bizName,times)"/>

    </aop:aspect>
</aop:config>

</beans>

通知类：

package com.imooc.aop.schema.advice;

import org.aspectj.lang.ProceedingJoinPoint;

public class MoocAspect {
    
    public void before(){
        System.out.println("before");
    }
    
    public void afterreturning(){
        System.out.println("after returning");
    }

    public void throwing(){
        System.out.println("throw");
    }
    
    public void after(){
        System.out.println("Say Love me");
    }
    
    public Object around(ProceedingJoinPoint pjp){
        Object obj = null;
        try {
            System.out.println("MoocAspect Around Before");
            obj = pjp.proceed();
            System.out.println("MoocAspect Around After");
        } catch (Throwable e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return obj;
    }
    
    public Object aroundInit(ProceedingJoinPoint pjp,String bizName,int times){
        System.out.println("bizName="+bizName+"      times="+times);
        Object obj = null;
        try {
            System.out.println("MoocAspect AroundInit Before");
            obj = pjp.proceed();
            System.out.println("MoocAspect AroundInit After");
        } catch (Throwable e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return obj;
    }
}

测试类：

package com.imooc.test.aop;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.BlockJUnit4ClassRunner;

import com.imooc.aop.schema.advice.biz.AspectBiz;
import com.imooc.test.base.UnitTestBase;

@RunWith(BlockJUnit4ClassRunner.class)
public class TestAOPSchemaAdvice extends UnitTestBase {
    
    public TestAOPSchemaAdvice(){
        super("classpath:spring-aop-schema-advice.xml");
    }
    
    @Test
    public void testBiz(){
        AspectBiz aBiz = super.getbean("AspectBiz");
        aBiz.biz();
    }
    
    @Test
    public void testInit(){
        AspectBiz aBiz = super.getbean("AspectBiz");
        aBiz.init("moocService",3);
    }

}

打印日志：

四月 18, 2019 6:19:42 上午 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@45a5049a: startup date [Thu Apr 18 06:19:42 CST 2019]; root of context hierarchy
四月 18, 2019 6:19:42 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [spring-aop-schema-advice.xml]
bizName=moocService      times=3
MoocAspect AroundInit Before
AspectBiz init:moocService 3
MoocAspect AroundInit After
四月 18, 2019 6:19:43 上午 org.springframework.context.support.ClassPathXmlApplicationContext doClose
信息: Closing org.springframework.context.support.ClassPathXmlApplicationContext@45a5049a: startup date [Thu Apr 18 06:19:42 CST 2019]; root of context hierarchy