spring: @Pointcut給重復的注解/切點定義表達式

代碼如下：

package ch2.test;

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Aspect;


@Aspect
public class Audience {

	
	//表演之前：觀點手機
	@Before("execution(** ch2.test.Performance.perform(..))")
	public void silenceCellPhones()
	{
		System.out.println("silenCellPhones");
	}
	
	//表演之前：就座
	@Before("execution(** ch2.test.Performance.perform(..))")
	public void takingSeats()
	{
		System.out.println("take seats");
	}
	
	//表演之后：鼓掌
	@AfterReturning("excuttion(** ch2.test.Performance.perform(..))")
	public void applause()
	{
		System.out.println("clap clap clap !!!");
	}
	
	//表演失敗：退票
	@AfterThrowing("execution(** ch2.test.Performance.perform(..))")
	public void demandRefund()
	{
		System.out.println("demanding a refund");
	}
}

　　

2.Pointcut

 org.aspectj.lang.annotation.Pointcut;

package ch2.test;

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class Audience2 {

    
    //定義命名的切點
    @Pointcut("execution(** ch2.test.Performance.perform(..))")
    public void Performance(){}
    
    //表演開始之前:關閉手機
    @Before("Performance()")
    public void silenCellPhones()
    {
        System.out.println("silen cell phones");
    }
    
    //表演開始之前：入座
    @Before("Performance()")
    public void takingSeats()
    {
        System.out.println("take seats");
    }
    
    //表演開始之后：鼓掌
    @AfterReturning("Performance()")
    public void applause()
    {
        System.out.println("clap clap clap");
    }
    
    //表演結束之后：表演失敗退票
    @AfterThrowing("Performance()")
    public void demandRefund()
    {
        System.out.println("demand refund");
    }
    
}