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我已经开始使用 javax.validation 的@Valid注释来验证到达我的 REST 端点的数据。这是按预期工作并引发适用的异常：

Caused by: javax.validation.ConstraintViolationException: Validation failed for classes [org.<...>.crs.model.RegistrantEntity] during update time for groups [javax.validation.groups.Default, ]
List of constraint violations:[
    ConstraintViolationImpl{interpolatedMessage='Email address is invalid', propertyPath=email, rootBeanClass=class org.<...>.crs.model.RegistrantEntity, messageTemplate='Email address is invalid'}

我的理解ExceptionMapper是我应该能够做到这一点：

import javax.validation.ConstraintViolationException;

import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

@Provider
public class ConstraintViolationExceptionHandler implements ExceptionMapper<ConstraintViolationException> {
    @Override
    public Response toResponse(ConstraintViolationException exception) {
        return Response.status(Response.Status.BAD_REQUEST).entity(exception).build();
    }
}

Response哪个应该捕获该异常并指定要发回的适当对象。

然而，这不起作用，这是完整的顶级堆栈跟踪项：

14:40:46,357 ERROR [org.jboss.as.ejb3.invocation] (default task-1) WFLYEJB0034: Jakarta Enterprise Beans Invocation failed on component AnswerResource for method public javax.ws.rs.core.Response org.<…&gt;.crs.api.AnswerResource.updateAnswer(org.<…&gt;.crs.api.model.Answer,java.util.UUID,java.lang.String) throws java.net.URISyntaxException,java.io.IOException: javax.ejb.EJBTransactionRolledbackException: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.
…
Caused by: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.
…
    Suppressed: javax.transaction.RollbackException: WFTXN0061: Transaction is marked rollback-only
…
    Suppressed: javax.transaction.RollbackException: WFTXN0061: Transaction is marked rollback-only
…
Caused by: javax.validation.ConstraintViolationException: Validation failed for classes [org.<…&gt;.crs.model.RegistrantEntity] during update time for groups [javax.validation.groups.Default, ]
List of constraint violations:[
    ConstraintViolationImpl{interpolatedMessage='Email address is invalid', propertyPath=email, rootBeanClass=class org.<…&gt;.crs.model.RegistrantEntity, messageTemplate='Email address is invalid'}
]

我的理解是ConstraintViolationException，虽然是原因，但已被打包在 RollbackException 中，因此不会被 ExceptionMapper 捕获。

  1. 有人可以证实这一点吗？
  2. 如果是这样，是否有办法覆盖此行为并捕获其中包含的任何异常ConstraintViolationException？
  3. 如果没有，有什么好的解决方法？

想法？

谢谢。

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