Spring基于advisor配置aop过程解析_Java

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

<?xml version="1.0" encoding="utf-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" 
    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:util="http://www.springframework.org/schema/util"
    xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemalocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd                          http://www.springframework.org/schema/util                                     http://www.springframework.org/schema/util/spring-util-4.3.xsd             http://www.springframework.org/schema/context                                    http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop                                    http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
<aop:aspectj-autoproxy /> 
  <bean id="beforemethodadvice" class="com.gec.advice.beforemethodadvice" /> 
  <bean id="hadoop" class="com.gec.target.hadoop" /> 
  <aop:config> 
    <!--定义一个切面--> 
    <aop:advisor advice-ref="beforemethodadvice" pointcut="execution (* eatting(..))" /> 
  </aop:config> 
</beans>

4、测试

public static void main(string[] args) { 
  applicationcontext ctx=new classpathxmlapplicationcontext("beans.xml"); 
  hadoop hadoop= (hadoop) ctx.getbean("hadoop"); 
  hadoop.eatting(); 
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。