Spring aop学习详解 - JAVA

======== \n");

System.out.print("准备在" + jp.getTarget().getClass() + "对象上用");
System.out.print(jp.getSignature().getName() + "方法进行对 '");
System.out.print(jp.getArgs()[0] + "'进行删除！\n\n");

System.out.println("要进入切入点方法了 \n");
}

/**
* 后置通知
*
* @param jp
* 连接点
* @param result
* 返回值
*/
@AfterReturning(value = "anyMethod()", returning = "result")
public void doAfter(JoinPoint jp, String result) {
System.out.println("==========进入after advice=========== \n");
System.out.println("切入点方法执行完了 \n");

System.out.print(jp.getArgs()[0] + "在");
System.out.print(jp.getTarget().getClass() + "对象上被");
System.out.print(jp.getSignature().getName() + "方法删除了");
System.out.print("只留下：" + result + "\n\n");
}

/**
* 环绕通知
*
* @param pjp
* 连接点
*/
@Around(value = "execution(* aop.annotation.*.*(..))")
public void doAround(ProceedingJoinPoint pjp) throws Throwable {
System.out.println("===========进入around环绕方法！=========== \n");

// 调用目标方法之前执行的动作
System.out.println("调用方法之前: 执行！\n");

// 调用方法的参数
Object[] args = pjp.getArgs();
// 调用的方法名
String method = pjp.getSignature().getName();
// 获取目标对象
Object target = pjp.getTarget();
// 执行完方法的返回值：调用proceed()方法，就会触发切入点方法执行
Object result = pjp.proceed();

System.out.println("输出：" + args[0] + ";" + method + ";" + target + ";" + result + "\n");
System.out.println("调用方法结束：之后执行！\n");
}

/**
* 异常通知
*
* @param jp
* @param e
*/
@AfterThrowing(value = "execution(* aop.annotation.*.*(..))", throwing = "e")
public void doThrow(JoinPoint jp, Throwable e) {
System.out.println("删除出错啦");
}

}

c、配置：
View Code

< xml version="1.0" encoding="UTF-8" >
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"
default-autowire="byName">

d、测试类：
View Code

/**
* 测试类
*
* @author yanbin
*
*/
public class Debug {

public static void main(String[] args) {

ApplicationContext context = new ClassPathXmlApplicationContext("aop/annotation_aop.xml");
Business business = (Business) context.getBean("business");
business.delete("猫");
}

}

Spring aop学习详解(五)