Spring用AspectJ开发AOP(基于Annotation)

package com.mengma.aspectj.annotation;

import org.aspectj.lang.JoinPoint;
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;

//切面类
@Aspect
@Component
public class MyAspect {
// 用于取代：
// 要求：方法必须是private，没有值，名称自定义，没有参数
@Pointcut("execution(*com.mengma.dao..*.*(..))")
private void myPointCut() {
}

// 前置通知
@Before("myPointCut()")
public void myBefore(JoinPoint joinPoint) {
System.out.print("前置通知，目标：");
System.out.print(joinPoint.getTarget() + "方法名称:");
System.out.println(joinPoint.getSignature().getName());
}

// 后置通知
@AfterReturning(value = "myPointCut()")
public void myAfterReturning(JoinPoint joinPoint) {
System.out.print("后置通知，方法名称：" + joinPoint.getSignature().getName());
}

// 环绕通知
@Around("myPointCut()")
public Object myAround(ProceedingJoinPoint proceedingJoinPoint)
throws Throwable {
System.out.println("环绕开始"); // 开始
Object obj = proceedingJoinPoint.proceed(); // 执行当前目标方法
System.out.println("环绕结束"); // 结束
return obj;
}

// 异常通知
@AfterThrowing(value = "myPointCut()", throwing = "e")
public void myAfterThrowing(JoinPoint joinPoint, Throwable e) {
System.out.println("异常通知" + "出错了" + e.getMessage());
}

// 最终通知
@After("myPointCut()")
public void myAfter() {
System.out.println("最终通知");
}
}

import org.springframework.stereotype.Repository;
@Repository("customerDao")
public class CustomerDao {
  public void doSome(){
    // int i=1/0;
    System.out.println("正式业务");
  }
}

<&＃63;xml version="1.0" encoding="UTF-8"&＃63;>

package com.mengma.aspectj.annotation;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.mengma.dao.CustomerDao;

public class AnnotationTest {
@Test
public void test() {
String xmlPath = "com/mengma/aspectj/xml/applicationContext.xml";
ApplicationContext applicatiOnContext= new ClassPathXmlApplicationContext(
xmlPath);
// 从spring容器获取实例
CustomerDao customerDao = (CustomerDao) applicationContext
.getBean("customerDao");
// 执行方法
customerDao.add();
}
}