AOP中环绕通知的写法

Posted 2020-11-22 newcityboy

package com.hope.utils;

import org.aspectj.lang.ProceedingJoinPoint;

/**
 * @author newcityman
 * @date 2019/11/22 - 23:29
 * 记录日志的类
 */
public class Logger {
    /**
     * 前置通知
     */
    public void beforePrintLog(){
        System.out.println("前置通知");
    }

    /**
     * 后置通知
     */
    public void afterReturningPrintLog(){
        System.out.println("后置通知");
    }

    /**
     * 异常通知
     */
    public void afterThrowingPrintLog(){
        System.out.println("异常通知");
    }

    /**
     * 最终通知
     */
    public void afterPrintLog(){
        System.out.println("最终通知");
    }

    /**
     * 环绕通知
     */
    public Object aroundPrintLog(ProceedingJoinPoint pjp){
        Object rtValue = null;
        try {
            System.out.println("前置通知");
            Object[] args = pjp.getArgs();
           rtValue= pjp.proceed(args);
            System.out.println("后置通知");
            return rtValue;
        } catch (Throwable t) {
            System.out.println("异常通知");
            throw new RuntimeException(t);
        }finally {
            System.out.println("最终通知");
        }

    }
}

<?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.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!--配置spring的ioc，把service对象配置进来-->
    <bean id="accountService" class="com.hope.service.impl.AccountService"></bean>
    <!--配置logger类-->
    <bean id="logger" class="com.hope.utils.Logger"></bean>
    <!--配置AOP-->
    <aop:config>
        <!--配置切面-->
        <aop:aspect id="logAdvice" ref="logger">
            <aop:pointcut id="pt1" expression="execution(* *..*.*(..))"/>
            <!--配置通知的类型，并且建立通知方法和切入点方法的关联-->
            <!--<aop:before method="printLog" pointcut="execution(public void com.hope.service.impl.AccountService.saveAccount())"></aop:before>-->
            <!--<aop:before method="printLog" pointcut="execution(void com.hope.service.impl.AccountService.saveAccount())"></aop:before>-->
            <!--<aop:before method="printLog" pointcut="execution(* com.hope.service.impl.AccountService.saveAccount())"></aop:before>-->
            <!--<aop:before method="printLog" pointcut="execution(* *.*.*.*.AccountService.saveAccount())"></aop:before>-->
            <!--<aop:before method="printLog" pointcut="execution(* *.*.*.*.AccountService.saveAccount())"></aop:before>-->
            <!--<aop:before method="printLog" pointcut="execution(* *..AccountService.saveAccount())"/>-->
            <!--<aop:before method="printLog" pointcut="execution(* *..*.*())"/>-->
            <!--<aop:before method="beforePrintLog" pointcut-ref="pt1"/>-->
            <!--<aop:after-returning method="afterReturningPrintLog" pointcut="execution(* *..*.*(..))"/>-->
            <!--<aop:after-throwing method="afterThrowingPrintLog" pointcut="execution(* *..*.*(..))"/>-->
            <!--<aop:after method="afterPrintLog" pointcut-ref="pt1"/>-->
            <!--<aop:before method="printLog"  pointcut="execution(* *..*.*(..))"/>-->
            <aop:around method="aroundPrintLog" pointcut-ref="pt1"/>
        </aop:aspect>
    </aop:config>
</beans>

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