Spring Webflux WebExceptionHandler未被OptimisticLockingFailure触发

Question

我有一个GlobalExceptionHandler来捕获所有抛出的异常并返回正确的返回码。一切正常，除非发生OptimisticLockingFailureException，并且我不知道为什么会这样。

GlobalExceptionHandler：

@Component
@Order(-2)
class GlobalExceptionHandler : WebExceptionHandler {

    override fun handle(exchange: ServerWebExchange, throwable: Throwable): Mono<Void> = handleException(throwable)
            .flatMap { it.writeTo(exchange, HandlerStrategiesResponseContext(HandlerStrategies.withDefaults())) }
            .flatMap { Mono.empty<Void>() }

    private fun handleException(ex: Throwable): Mono<ServerResponse> = when (ex) {
        is EntityNotFoundException -> notFound(ex.message)
        is InvalidRequestException,
        is ReferenceKeyNotKnown,
        is InvalidContractTypeException -> badRequest(ex.message)
        is DuplicateKeyException,
        is TransactionException,
        is OptimisticLockingFailureException -> conflict(ex.message)
        else -> errorResponse(HttpStatus.INTERNAL_SERVER_ERROR, ex.message)
    }

    private class HandlerStrategiesResponseContext(val strategies: HandlerStrategies) : ServerResponse.Context {
        override fun viewResolvers(): MutableList<ViewResolver> = strategies.viewResolvers()
        override fun messageWriters(): MutableList<HttpMessageWriter<*>> = strategies.messageWriters()
    }

}

notFound，badRequest和errorResponse函数返回具有正确状态码和消息的Mono。

任何可以帮助我并指出正确方向的人，为什么OptimistickLockingException不会触发此错误？

Thx！

Answer 1

所以未触发异常处理程序的原因是，我们的处理程序中仍然有一个.onErrorContinue步骤，该步骤记录了异常，而没有其他任何记录。将日志记录移到GlobalExceptionHandler并除去onErrorContinue之后，GlobalExceptionHandler可以按预期工作]