Spring AOP面向切面编程

这是一个Demo，主要介绍前后增强和正则匹配切面

1、Customer.java

package com.cn.pojo;  import com.cn.interf.ICustomer;  /**  * 目标对象  * 买了一个核心功能ipadMini  */ public class Customer implements ICustomer{      @Override     public void buyIpadMini() {         System.out.println("买了部ipadMini...");     }      @Override     public void buyIphoneX() {         System.out.println("买了部iPhoneX...");     }      @Override     public void buyIpadAir(String number) {         System.out.println("买了部ipadAir...");     }  }

2、ICustomer.java

package com.cn.interf;  public interface ICustomer {      public void buyIpadMini();          public void buyIphoneX();          public void buyIpadAir(String number);      }

3、后置增强AfterAdvice.java

package com.cn.advice;  import java.lang.reflect.Method;  import org.springframework.aop.AfterReturningAdvice;  /**  * 增强类  * 需要增强目标对象  */ public class AfterAdvice implements AfterReturningAdvice{      @Override     public void afterReturning(Object arg0, Method arg1, Object[] arg2,             Object arg3) throws Throwable {          System.out.println("填写问卷，送贴膜...");              }  }

4、前置增强BeforAdvice.java

package com.cn.advice;  import java.lang.reflect.Method;  import org.springframework.aop.MethodBeforeAdvice;  public class BeforAdvice implements MethodBeforeAdvice {      @Override     public void before(Method arg0, Object[] arg1, Object arg2)             throws Throwable {          String number = arg1[0].toString();                  if(number.indexOf("421003")==0){             System.out.println("荆州用户送100元购机券");         }      }  }

5、Test.java

package com.cn.test;  import org.springframework.context.ApplicationContext; span style="color:#0000ff;">import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.xtkj.interf.ICustomer;

public class Test {

    @org.junit.Test
    public void test1(){
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        ICustomer customerProxy = (ICustomer)applicationContext.getBean("customerProxy");
        
        customerProxy.buyIpadMini();
    }
    
    @org.junit.Test
    public void test2(){
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        ICustomer customerProxy = (ICustomer)applicationContext.getBean("customerProxy");
        
        customerProxy.buyIpadMini();
        customerProxy.buyIphoneX();
    }
    
    @org.junit.Test
    public void test3(){
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        ICustomer customerProxy = (ICustomer)applicationContext.getBean("customerProxy2");
        
        customerProxy.buyIpadMini();
        customerProxy.buyIphoneX();
    }
    
    @org.junit.Test
    public void test4(){
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        ICustomer customerProxy = (ICustomer)applicationContext.getBean("customerProxy3");
        
        customerProxy.buyIpadMini();
        customerProxy.buyIphoneX();
        customerProxy.buyIpadAir("421003");
        
    }
    
}

6、applicationContext.xml

<?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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

    <!-- 目标对象 -->
    <bean id="customer" class="com.cn.pojo.Customer"></bean>
    <!--后置增强类 -->
    <bean id="afterAdvice" class="com.cn.advice.AfterAdvice"></bean>
    <!--前置增强-->
    <bean id="beforeAdvice" class="com.cn.advice.BeforAdvice"></bean>
    
    <!-- 正则表达式增强 -->
    <bean id="regexpAdvice" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
        <!-- 匹配切入点 -->
        <property name="patterns">
            <list>
                <value>.*IpadMini.*</value>
            </list>
        </property>
        <!-- 指定匹配后的增强类 -->
        <property name="advice" ref="afterAdvice">
        </property>
    </bean>
    
    <!-- 正则表达式增强 -->
    <bean id="regexpAdvice1" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
        <!-- 匹配切入点 -->
        <property name="patterns">
            <list>
                <value>.*IpadAir.*</value>
            </list>
        </property>
        <!-- 指定匹配后的增强类 -->
        <property name="advice" ref="beforeAdvice">
        </property>
    </bean>
    
    <!-- 代理对象1 -->
    <bean id="customerProxy" class="org.springframework.aop.framework.ProxyFactoryBean">
        <!-- 接口 -->
        <property name="interfaces" value="com.cn.interf.ICustomer"></property>
        <!-- 目标对象 -->
        <property name="target" ref="customer"></property>
        <!-- 增强类 -->
        <property name="interceptorNames">
            <list>
                <value>afterAdvice</value>
            </list>
        </property>
    </bean>
    
    <!-- 代理对象2 -->
    <bean id="customerProxy2" class="org.springframework.aop.framework.ProxyFactoryBean">
        <!-- 接口 -->
        <property name="interfaces" value="com.cn.interf.ICustomer"></property>
        <!-- 目标对象 -->
        <property name="target" ref="customer"></property>
        <!-- 增强类 -->
        <property name="interceptorNames">
            <list>
                <value>regexpAdvice</value>
            </list>
        </property>
    </bean>
    
    <!-- 代理对象3 -->
    <bean id="customerProxy3" class="org.springframework.aop.framework.ProxyFactoryBean">
        <!-- 接口 -->
        <property name="interfaces" value="com.cn.interf.ICustomer"></property>
        <!-- 目标对象 -->
        <property name="target" ref="customer"></property>
        <!-- 增强类 -->
        <property name="interceptorNames">
            <list>
                <value>regexpAdvice</value>
                <value>regexpAdvice1</value>
            </list>
        </property>
    </bean>

</beans>