小编Tim*_*Tim的帖子

我是Spring Boot的新手.在我的控制器中,我使用UUIDs作为@PathVariable.默认情况下,弹簧MethodArgumentTypeMismatchException在传递无效时返回UUID.

当客户端传递无效时,UUID我想抛出一个自定义InvalidUUIDException,以便我能够使用此异常返回自定义的ErrorDto.

为了实现我正在尝试注册一个自定义UUIDConverter(实现org.springframework.core.convert.converter.Converter).

@Component
public class UUIDConverter implements Converter<String, UUID>
{
    private static final Pattern pattern = Pattern.compile("[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}");

    @Override
    public UUID convert(String input) throws InvalidUuidException
    {
        if (!pattern.matcher(input).matches()) {
            throw new InvalidUuidException(input);
        }

        return UUID.fromString(input);
    }
}

要注册此组件,我将此Converter添加到弹簧ConversionService.使用ConversionServiceFactoryBean.

@Configuration
public class ConversionServiceConfiguration
{
    @Bean
    public ConversionServiceFactoryBean conversionService()
    {
        ConversionServiceFactoryBean bean = new ConversionServiceFactoryBean();
        bean.setConverters(getConverters());

        return bean;
    }

    private Set<Converter> …