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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2022/08/12 16:17:41 UTC

[GitHub] [dubbo] liufeiyu1002 commented on issue #10415: The dubbo method parameter validation exception message is swallowed by ValidationException

liufeiyu1002 commented on issue #10415:
URL: https://github.com/apache/dubbo/issues/10415#issuecomment-1213289750

   原因就是 `ConstraintViolationImpl` 会发生序列化问题。我想到的解决办法
   1. 消费者端引入 ValidationFilter 和  Validation 进行前置校验，非法请求直接在消费者端就拦截掉 (不需要开发 只需要消费者端引入就可以)
   2. 官方在 Validation 校验发生异常的时候 提供一个可由用户自定义扩展的异常信息包装的处理
   ![image](https://user-images.githubusercontent.com/32605119/184399382-d3a6eb97-0676-4a9e-8569-134b5cc91d95.png)
   如图 可以调用扩展 (通过静态类配置 或者 是spi扩展)对异常信息进行包装，框架提供默认扩展为 ` new ValidationException(e.getMessage())`  即仅返回异常消息，用户可以针对自己的需求，对`ConstraintViolation` 中的信息进行二次封装成可序列化的类   例如:#10415 这种实现


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