spring--AOP--日志---demo1---bai

AOP日志DEMO1：

实体类：

package com.etc.entity;

import org.aspectj.lang.annotation.Pointcut;

public class User implements IUser
{
	public static int NORMAL = 1;//普通用户角色
	public static int ADMIN = 2;    //管理员角色
	private int role;  //所属的角色

	public int getRole() {
		return role;
	}

	public void setRole(int role) {
		this.role = role;
	}

	public void login() {
		System.out.println("执行登录了！");

	}

	public void reg() {
		System.out.println("执行注册了！");
	//throw new RuntimeException("注册过程发生异常！");
	}

}
================================================================
实体类需实现的接口：

package com.etc.entity;

//定义用户接口
public interface IUser
{
	void login(); //登录
	void reg(); //注册

}
=================================================================
通知类：

package com.etc.advice;

import org.aspectj.lang.ProceedingJoinPoint;

//自定义通知类
public class MyAdvice
{
	public  void beforelog()
	{
		System.out.println("这是前置通知的日志！");
	}

	public  void afterlog()
	{
		System.out.println("这是后置通知的日志！");
	}

	public  void aroundlog(ProceedingJoinPoint point) throws Throwable
	{
		System.out.println("这是环绕前通知的日志！");
		point.proceed();//原来代码的位置
		System.out.println("这是环绕后通知的日志！");
	}

	public void throwlog()
	{
		System.out.println("这是抛出异常后通知的日志");
	}

}
=================================================================
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:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
  <!-- 定义1个业务类对象 -->
  <bean id="user" class="com.etc.entity.User">
    <property name="role" value="2"></property>
  </bean>
<!-- 定义1个通知类对象 -->
	<bean id="myadv" class="com.etc.advice.MyAdvice">
  	</bean>
  <aop:config>
   <!-- 配置切点的集合、即切线 -->
     <aop:pointcut expression="execution(* com.etc.entity.User.*(..))" id="mypc"/>
   <!-- 配置切入的方向 ，即切面-->
   	  <aop:aspect ref="myadv">
   	     <!-- 前置通知
   	  	<aop:before method="beforelog" pointcut-ref="mypc"/>
   	  	-->
   	  	 <!-- 后置通知
   	  	 <aop:after method="afterlog" pointcut-ref="mypc"/>
   	  	  -->
   	  	  <!-- 环绕通知
   	  	  <aop:around method="aroundlog" pointcut-ref="mypc"/>
   	  	  -->
   	  	   <!-- 异常通知
   	  	  <aop:after-throwing method="throwlog" pointcut-ref="mypc"/>
   	  	    -->
   	  </aop:aspect>
  </aop:config>

</beans>
===============================================
测试类：
package com.etc.test;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.etc.entity.IUser;

public class Test {
	public static void main(String[] args)
	{
		BeanFactory fac = new ClassPathXmlApplicationContext("applicationContext.xml");
		IUser u = (IUser) fac.getBean("user");

		//执行业务方法
		u.login();
		System.out.println("=====");

		try
		{
			u.reg();
		} catch (Exception e)
		{

		}
	}
}
======================================================================