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