Spring 【Aspectj】进行AOP开发 （【注解】方式）

/**
*    观众
*/
@Aspect   //切片
public class Audience {

//坐下
//@Before("execution (* aspectj.Performer.*(..))")
public void takeSeats(JoinPoint jp){
System.out.println("method : " + jp.getSignature().getName());
System.out.println("target : " + jp.getTarget());  //  目标对象

//代理对象(toString)值与getTarget一致,为直接toString()方法
System.out.println("this : " + jp.getThis());
System.out.println("args : " + jp.getArgs());
}

//关手机
//@Before("execution (* aspectj.Performer.*(..))")
public void turnOffCellPhone(){
System.out.println("turnOffCellPhone");
}

//退票
//throwing 指定接收异常信息的参数
//@AfterThrowing(pointcut="execution (* aspectj.Performer.*(..))",throwing="e")
public void demandRefund(Exception e){
System.out.println("退票");
System.out.println("出事了  : ");
}

//鼓掌(抛异常则不执行)
//returning 指定接收返回值的参数
//@AfterReturning(pointcut="execution (* aspectj.Performer.*(..))",returning="ret")
public void applaud(JoinPoint jp,Object ret){
System.out.println("applaud");
System.out.println("返回值为: " + ret);
}

//回家
//@After("execution (* aspectj.Performer.*(..))")
public void goHome(){
System.out.println("回家...");
}

//观看  (包含以上的所有行为)
@Around("execution (* aspectj.Performer.*(..))")
public Object doWatch(ProceedingJoinPoint pjp){

//@Before
System.out.println("就座");
System.out.println("关手机");

Object res = null;
//调用目标对象的方法
try {
res = pjp.proceed();

//@AfterReturning
System.out.println("鼓掌...");
}
catch (Throwable e) {
//@AfterThrowing
System.out.println("出事了 !" + e.getMessage());
}finally{
//@After
System.out.println("回家");
}

//@AfterReturning
return res;
}
}

<!-- 歌手演员 -->
<bean id="singer" class="aspectj.Singer"/>

<!-- 观众(通知) -->
<bean class="aspectj.Audience"/>

<!-- 注解生效  -->
<aop:aspectj-autoproxy/>