Spring aop拦截注解标记的接口方法_springaop 拦截一个标记接口的所有子接口及实现类的公共方法-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_40118996/article/details/89952746

本文介绍了如何在Spring AOP中拦截注解标记的接口方法。通过自定义注解、标记mapper接口方法、创建拦截处理器和advisor，实现了对特定方法的拦截功能，并在启动时启用拦截。

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参考@Repository 会自动加入PersistenceExceptionTranslationAdvisor
实现mapper接口方法拦截

1.自定义注解

@Target(
    AnnotationTarget.VALUE_PARAMETER,
    AnnotationTarget.FIELD,
    AnnotationTarget.FUNCTION
)
@Retention(AnnotationRetention.RUNTIME)
@Documented
@Inherited
annotation class ORMEncrypt {
}

2.使用注解标记mapper接口中的方法

@Mapper
@Repository
interface GameServerMapper {
    @ORMEncrypt
    fun getIp(@Param("status") @ORMEncrypt status: String,@Param("ip") ip : String): String
}

3.定义自己的方法拦截处理器

class ORMInterceptor :MethodInterceptor {
    override fun invoke(methodInvocation: MethodInvocation): Any {
      return   methodInvocation.proceed()
    }
}

4.定义自己的advisor关联拦截器和切入点

class ORMEncryptAdvisor(
    private val ormInterceptor: ORMInterceptor,
    private val pointcut:AnnotationMatchingPointcut
) : AbstractPointcutAdvisor(){

    override fun getAdvice(): Advice =ormInterceptor

    override fun getPointcut(): Pointcut =pointcut
}

5.将advisor加在每个代理的bean内

class ORMEncryptAnnotationBeanPostProcessor :
    AbstractBeanFactoryAwareAdvisingPostProcessor() {
    private val repositoryAnnotationType: Class<out Annotation> = ORMEncrypt::class.java
    override fun setBeanFactory(beanFactory: BeanFactory) {
        super.setBeanFactory(beanFactory)
        this.advisor = ORMEncryptAdvisor(ORMInterceptor(), AnnotationMatchingPointcut.forMethodAnnotation(repositoryAnnotationType))
    }
}

6.启动拦截

 @Bean
    fun ormProcessor()=ORMEncryptAnnotationBeanPostProcessor()