Spring IOC和Spring AOP_spring aop_springIOC

package com.etc.dao2; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.After; import org.aspectj.lang.annotation.AfterReturning; import org.aspectj.lang.annotation.AfterThrowing; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; import org.springframework.stereotype.Component; @Component @Aspect public class MyAspectXml { @Pointcut("execution(* com.etc.dao2.*DaoImpl.save(..))") public void pointCut(){ } // 前置增强 @Before("MyAspectXml.pointCut()") public void before1() { System.out.println("前置增强==========="); } // 后置增强：完全返回 @After("MyAspectXml.pointCut()") public void after() { System.out.println("后置增强==========="); } // 后置增强:正常返回 @AfterReturning("execution(* com.etc.dao2.*DaoImpl.update(..))") public void afterReturn() { System.out.println("后置增强=====方法执行完成======"); } // 后置增强:异常返回 @AfterThrowing("execution(* com.etc.dao2.*DaoImpl.update(..))") public void afterThrows() { System.out.println("后置增强=====方法执行出现异常======"); } // 环绕通知 @Around("execution(* com.etc.dao2.*DaoImpl.delete(..))") public Object arround(ProceedingJoinPoint joinPoint) { Object obj = null; try { System.out.println("环绕通知===前置=="); obj = joinPoint.proceed(); System.out.println("环绕通知===后置=="); } catch (Throwable e) { e.printStackTrace(); System.out.println("环绕通知===异常=="); } return obj; } }