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  • Java AOP切面编程,spring 配置文件开发方式

    一,定义主要接口

    package c.c.aop;

    /*
    * 接口类
    * 主要要做的事
    *
    * */


    public interface Sleepable {

    void sleep();

    }

    二,继承主要接口重写类

    package c.c.aop;

    public class Human implements Sleepable {

    /*
    * 接口实现类
    * 重写接口类方法
    *
    * */
    public void sleep(){
    System.out.println("睡觉了!梦中自有颜如玉!");
    }

    }

    三,切面新添加的要执行的类

    package c.c.aop;

    import java.lang.reflect.Method;

    import org.springframework.aop.AfterReturningAdvice;
    import org.springframework.aop.MethodBeforeAdvice;


    /*
    * 切面通知类
    * */

    public class SleepHelper implements MethodBeforeAdvice,AfterReturningAdvice{

    public void before(Method mtd, Object[] arg1, Object arg2)
    throws Throwable {
    System.out.println("通常情况下睡觉之前要脱衣服!");
    }

    public void afterReturning(Object arg0, Method arg1, Object[] arg2, Object arg3) throws Throwable {
    System.out.println("起床后要先穿衣服!");
    }

    }

    四,测试的main 方法

    package c.c.aop;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;

    public class TestAOP {

    @SuppressWarnings("resource")
    public static void main(String[] args){
    ApplicationContext appCtx = new ClassPathXmlApplicationContext("beans-mybatis.xml");
    Sleepable sleeper = (Sleepable)appCtx.getBean("humanProxy");
    sleeper.sleep();
    }

    }

    五,配置文件

    <bean id="sleepHelper" class="c.c.aop.SleepHelper">
    </bean>

    <bean id="start" class="c.c.aop.Human">
    </bean>

    <bean id="sleepPointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut">
    <property name="pattern" value=".*sleep"/>
    </bean>

    <bean id="sleepHelperAdvisor" class="org.springframework.aop.support.DefaultPointcutAdvisor">
    <property name="advice" ref="sleepHelper"/>
    <property name="pointcut" ref="sleepPointcut"/>
    </bean>

    <bean id="humanProxy" class="org.springframework.aop.framework.ProxyFactoryBean">
    <property name="target" ref="start"/>
    <property name="interceptorNames" value="sleepHelperAdvisor" />
    <property name="proxyInterfaces" value="c.c.aop.Sleepable" />
    </bean>

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  • 原文地址:https://www.cnblogs.com/jessi/p/5482614.html
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