spring之aop基于注解开发配置

导入xml约束及xml配置

<?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"
       xmlns:context="http://www.springframework.org/schema/context"
       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
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <!--开启自动扫描组件-->
    <context:component-scan base-package="com.itcast"></context:component-scan>

    <!--开启spring支持aop注解开发-->
    <aop:aspectj-autoproxy></aop:aspectj-autoproxy>

</beans>

Logger.java注解配置切面，选择环绕通知进行方法增强，自动增强注解开发执行顺序有问题

/**
 * @Date 2019/9/9 17:46
 * by mocar
 */
@Component
//@EnableAspectJAutoProxy//开启spring对aop注解开发的支持，等同于xml里的配置
@Aspect//表示当前类为切面类
public class Logger {
    @Pointcut("execution(* com.itcast.service.impl.*.*(..))")
    private void pt1(){}

    //@Before("pt1()")
    public void beforeAD(){
        System.out.println("前置通知开始执行.............");
    }
    //@AfterReturning("pt1()")
    public void afterRunAD(){
        System.out.println("后置通知开始执行.............");
    }
    //@AfterThrowing("pt1()")
    public void throwAD(){
        System.out.println("异常通知开始执行.............");
    }
    //@After("pt1()")
    public void afterAD(){
        System.out.println("最终通知开始执行.............");
    }

    /*环绕通知
    * 就相当于动态代理的整个过程
    * 相当于手动编码控制增强，无需在xml里配置
    * */
    @Around("pt1()")
    public Object aroundAD(ProceedingJoinPoint pjp){
        Object rsValue=null;
        try {
            Object[] pjpArgs = pjp.getArgs();//获取参数
            //前置通知
            System.out.println("环绕通知开始执行...前置通知..........");
            //Object proceed(Object[] var1) throws Throwable;
            rsValue = pjp.proceed(pjpArgs);//等价于动态代理中的 methed.invoke(obj,args)
            //后置通知
            System.out.println("环绕通知开始执行...后置通知..........");
        } catch (Throwable e) {
            //异常通知
            System.out.println("环绕通知开始执行...异常通知..........");
            throw  new RuntimeException(e);
        }finally {
            //最终通知
            System.out.println("环绕通知开始执行...最终通知..........");
        }
        return rsValue;
    }
}

 

 

 

自动增强注解开发执行顺序有问题截图