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Spring的AOP默认是基于实现做切面的，如果注解放到接口上，无法生效，比如Mapper层接口注解。

可以通过MethodInterceptor、AbstractBeanFactoryPointcutAdvisor来实现。

public XXXAdvisor extends AbstractBeanFactoryPointCutAdvisor{
    @Override
    public Pointcut getPointcut(){
        return new AnnotationMatchingPointcut(XXXAnnotation.clsss, true);
    }
}

public XXXAdvice implements MethodInterceptor{

    @Override
    public Object invoke(MethodInvocation arg0) throws Throwable{
        //business logic
        // 此处注意Mapper走的是Proxy代理类
        Class<?> proxyClass = arg0.getThis().getClass();
        Type[] classTypes = proxyClass.getGenericInterfaces();
        Class<?> clazz = Class.forName(classType[0].getTypeName());

        return ...
    }
}

public XXXConfig {
    @Bean
    public XXXAdvisor initXXXAdvisor(){
        XXXAdvisor adviser = new XXXAdvisor();
        advisor.setAdvice(new XXXAdvice());
        return adviser
    }
}