1、没有异常的
2、有异常的
1、被代理类接口Person.java
1 package com.xiaostudy; 2 3 /** 4 * @desc 被代理类接口 5 * 6 * @author xiaostudy 7 * 8 */ 9 public interface Person { 10 11 public void add(); 12 public void update(); 13 public void delete(); 14 }
2、被代理类PersonImple.java
1 package com.xiaostudy; 2 3 /** 4 * @desc 被代理类 5 * 6 * @author xiaostudy 7 * 8 */ 9 public class PersonImple implements Person { 10 11 /** 12 * @desc 实现接口方法 13 */ 14 public void add() { 15 System.out.println("add()>>>>>>>>"); 16 } 17 18 @Override 19 public void update() { 20 System.out.println("update()>>>>>>>>"); 21 // int i = 1/0; 22 } 23 24 @Override 25 public void delete() { 26 System.out.println("delete()>>>>>>>>"); 27 } 28 29 }
3、MyAspectJ.java
1 package com.xiaostudy; 2 3 import org.aspectj.lang.JoinPoint; 4 import org.aspectj.lang.ProceedingJoinPoint; 5 6 /** 7 * @desc 通知类 8 * 9 * @author xiaostudy 10 * 11 */ 12 public class MyAspectJ { 13 14 public void myBefort(JoinPoint joinPoint) { 15 System.out.println("前置通知>>>>>>>>>joinPoint: " + joinPoint.getSignature().getName()); 16 } 17 18 public void myAfterReturning(JoinPoint joinPoint, Object ret) { 19 System.out.println("后置通知>>>>>>>>>joinPoint: " + joinPoint.getSignature().getName() 20 + ", ret: " + ret); 21 } 22 23 public Object myAround(ProceedingJoinPoint joinPoint) throws Throwable { 24 System.out.println("环绕通知====前>>>>>>>>>>>"); 25 Object obj = joinPoint.proceed(); 26 System.out.println("环绕通知====后<<<<<<<<<<<"); 27 return obj; 28 } 29 30 public void myThrowint(JoinPoint joinPoint, Throwable e) { 31 System.out.println("异常通知>>>>>>>>>joinPoint: " + joinPoint.getSignature().getName() 32 + ", e: " + e.getMessage()); 33 System.exit(0); 34 } 35 36 public void myAfter(JoinPoint joinPoint) { 37 System.out.println("最终通知>>>>>>>>>joinPoint: " + joinPoint.getSignature().getName()); 38 } 39 }
4、spring的配置文件applicationContext.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:aop="http://www.springframework.org/schema/aop" 5 xsi:schemaLocation="http://www.springframework.org/schema/beans 6 http://www.springframework.org/schema/beans/spring-beans.xsd 7 http://www.springframework.org/schema/aop 8 http://www.springframework.org/schema/aop/spring-aop.xsd"> 9 <!-- 创建被代理类 --> 10 <bean id="person" class="com.xiaostudy.PersonImple"></bean> 11 <!-- 创建切面类 --> 12 <bean id="advice" class="com.xiaostudy.MyAspectJ"></bean> 13 <!-- springAOP编程 --> 14 <aop:config> 15 <!-- 将切面类 声明“切面”,从而获得通知(方法) --> 16 <aop:aspect ref="advice"> 17 <!-- 声明一个切入点,所有的通知都可以使用 --> 18 <aop:pointcut expression="execution(* com.xiaostudy.PersonImple.*(..))" id="myPointcut"/> 19 <!-- 前置通知: method表示:方法名,pointcut-ref表示:所有的通知共享,(pointcut表示:只有当前通知可用,其他的不能用) --> 20 <aop:before method="myBefort" pointcut-ref="myPointcut"/> 21 <!-- 后置通知:returning表示:后置通知的第二个参数名,内容是方法的返回值 --> 22 <aop:after-returning method="myAfterReturning" returning="ret" pointcut-ref="myPointcut"/> 23 <!-- 环绕通知 --> 24 <aop:around method="myAround" pointcut-ref="myPointcut"/> 25 <!-- 异常通知:throwing表示:异常通知的第二个参数,内容是异常信息 --> 26 <aop:after-throwing method="myThrowint" throwing="e" pointcut-ref="myPointcut"/> 27 <!-- 最终通知 --> 28 <aop:after method="myAfter" pointcut-ref="myPointcut"/> 29 </aop:aspect> 30 </aop:config> 31 </beans>
5、测试类Test.java
1 package com.xiaostudy; 2 3 import org.springframework.context.ApplicationContext; 4 import org.springframework.context.support.ClassPathXmlApplicationContext; 5 6 /** 7 * @desc 测试类 8 * 9 * @author xiaostudy 10 * 11 */ 12 public class Test { 13 14 public static void main(String[] args) { 15 ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml"); 16 Person person = ac.getBean("person", Person.class); 17 person.add(); 18 person.update(); 19 person.delete(); 20 } 21 22 }