spring: 使用Aspectj代理EnabelAspectjAutoProxy

使用JavaConfig的话，可以在配置类的类级别上通过使用EnableAspectJ-AutoProxy注解启用自动代理功能。

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 Audience {

	//定义命名的切点
	@Pointcut("execution(** ch2.test.Performance.perform(..))")
	public void Performance(){}

	//表演开始之前:关闭手机
	@Before("Performance()")
	public void silenCellPhones()
	{
		System.out.println("silen cell phones");
	}

	//表演开始之前：入座
	@Before("Performance()")
	public void takingSeats()
	{
		System.out.println("take seats");
	}

	//表演开始之后：鼓掌
	@AfterReturning("Performance()")
	public void applause()
	{
		System.out.println("clap clap clap");
	}

	//表演结束之后：表演失败退票
	@AfterThrowing("Performance()")
	public void demandRefund()
	{
		System.out.println("demand refund");
	}

}

　　

config

package ch2.test;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;

@Configuration
@ComponentScan
//声明自动代理: 开启自动代理
@EnableAspectJAutoProxy
public class ConcertConfig {

	@Bean
	public Audience audience()
	{
		return new Audience();
	}
}