spring四种常用通知类型

bean.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:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop.xsd">

    <bean id="accountService" class="com.itheima.service.impl.AccountServiceImpl"></bean>

    <bean id="logger" class="com.itheima.utils.Logger"></bean>

    <aop:config>
        <aop:aspect id="logAdvice" ref="logger">
            <aop:before method="beforePrintLog" pointcut="execution(* com.itheima.service.impl.*.*(..))"></aop:before>

            <aop:after-returning method="afterRuturnPrintLog" pointcut="execution(* com.itheima.service.impl.*.*(..))"></aop:after-returning>

            <aop:after-throwing method="afterThrowingPrintLog" pointcut="execution(* com.itheima.service.impl.*.*(..))"></aop:after-throwing>

            <aop:after method="afterPrintLog" pointcut="execution(* com.itheima.service.impl.*.*(..))"></aop:after>
        </aop:aspect>
    </aop:config>
</beans>

Logger.java

package com.itheima.utils;

public class Logger {

    /**
     * 前置通知
     */
    public void beforePrintLog() {
        System.out.println("前置通知Logger类中的beforePrintLog方法开始记录日志了。。。");
    }
    /**
     * 后置通知
     */
    public void afterRuturnPrintLog() {
        System.out.println("后置通知Logger类中的afterRuturnPrintLog方法开始记录日志了。。。");
    }
    /**
     * 异常通知
     */
    public void afterThrowingPrintLog() {
        System.out.println("异常通知Logger类中的afterThrowingPrintLog方法开始记录日志了。。。");
    }
    /**
     * 最终通知
     */
    public void afterPrintLog() {
        System.out.println("最终通知Logger类中的afterPrintLog方法开始记录日志了。。。");
    }
}

测试SpringTest.java

package com.itheima.test;

import com.itheima.service.IAccountService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringTest {

    public static void main(String[] args) {
        ApplicationContext ac=new ClassPathXmlApplicationContext("bean.xml");
        IAccountService accountService=(IAccountService) ac.getBean("accountService");
        accountService.saveAccount();
    }
}