Spring基于advisor配置aop过程解析

1、目标类

package com.gec.target;

public class Hadoop { 
  public void eatting() {
    System.out.println("大象正在吃东西 1"); 
    try {
      //耗时5秒 
      Thread.sleep(5000); 
    } catch (InterruptedException e) { 
      e.printStackTrace(); 
    } 
  }
}

2、增强类，此类必须要实现增强方位接口

package com.gec.advice; 

import org.springframework.aop.MethodBeforeAdvice; 
import java.lang.reflect.Method; 

public class BeforeMethodAdvice implements MethodBeforeAdvice { 
  @Override
	public void before(Method method, Object[] objects, Object o) throws Throwable { 
    System.out.println("how are you"); 
  } 
}

3、配置文件

4、测试

public static void main(String[] args) { 
  ApplicationContext ctx=new ClassPathXmlApplicationContext("beans.xml"); 
  Hadoop hadoop= (Hadoop) ctx.getBean("hadoop"); 
  hadoop.eatting(); 
}

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