spring学习笔记(十二)

spring 对AOP的支持   从JoinPoint得到相关信息

 

package zhc.love.dj.test;

public interface UserManger {
	
	public void addUser(String name,String password);
	public void delUser(int id) ;
	public void modUser(int id,String name,String password);
}

 

 

package zhc.love.dj.test;

public class UserMangerImp implements UserManger {

	public void addUser(String name, String password) {
		System.out.println("==============UserMangerImp.addUser()===================");
	}

	public void delUser(int id) {
		System.out.println("==============UserMangerImp.delUser()===================");
	}

	public void modUser(int id, String name, String password) {
		System.out.println("==============UserMangerImp.modUser()===================");
	}
}

 

 

  

package zhc.love.dj.test;

import org.aspectj.lang.JoinPoint;

public interface MySecurtyManger {
	
	public void checkSecurity(JoinPoint joinPoint);
}

 

 

  

package zhc.love.dj.test;

import org.aspectj.lang.JoinPoint;

public class MySecurtyMangerImp implements MySecurtyManger {
	
	//可以通过在通知中加入一个JoinPoint参数,这个参数Srping会自动传入,我们从joinPoint
	//中可以获得目标对象的相关信息,,如参数,方法名
	public void checkSecurity(JoinPoint joinPoint) {
		
		System.out.println("joinPoint =" + joinPoint.getSignature().getName());
		
		Object[]  args = joinPoint.getArgs();
		
		for(int i=0;i<args.length;i++){
			System.out.println(args[i]);
		}
		System.out.println("=========checkSecurity()=========");
	}
}

 

 

 

package zhc.love.dj.test;

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


public class Client {

	public static void main(String[] args) {
		//用spring的类来加载配置文件
		BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");
		//通过工厂产生类 调用对应类的id
		UserManger mangaer = (UserManger)factory.getBean("UserManger");
		mangaer.addUser("zhang", "jingjing");
         // mangaer.delUser(1);
	}

}

 

 

 

<?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:aop="http://www.springframework.org/schema/aop"
	   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">
<!-- 采用配置方式静态进行aop-->
<aop:config>
	<aop:aspect id="MySecurty" ref="MySecurtyMangerImp">
		<aop:pointcut id="allAddMethod" expression="execution(* add*(..))||execution(* del*(..))" />
		<aop:before pointcut-ref="allAddMethod" method="checkSecurity"/>
	</aop:aspect>

</aop:config>
<bean id="MySecurtyMangerImp" class="zhc.love.dj.test.MySecurtyMangerImp"></bean>
<bean id="UserManger" class="zhc.love.dj.test.UserMangerImp"></bean>
</beans>