Spring Boot Jackson2ObjectMapperBuilderCustomizer无法正常工作

Question

我想使用以下配置来自定义Java8 LocalDateTime模式

@Bean
@Primary
public Jackson2ObjectMapperBuilderCustomizer jsonCustomizer() {
    return builder -> {
        builder.simpleDateFormat(dateTimeFormat)
                .serializerByType(LocalDateTime.class,
                        new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(dateTimeFormat)))
                .deserializerByType(LocalDateTime.class,
                        new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(dateTimeFormat)))

                .serializerByType(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(dateFormat)))
                .deserializerByType(LocalDate.class,
                        new LocalDateDeserializer(DateTimeFormatter.ofPattern(dateFormat)))

                .serializerByType(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(timeFormat)))
                .deserializerByType(LocalTime.class,
                        new LocalTimeDeserializer(DateTimeFormatter.ofPattern(timeFormat)));
    };
}

但不起作用，Spring Boot版本2.6.9，该项目集成了春季云组件，例如Feing Eureka等。但是在我的Spring Boot Project中，没有Spring Cloud Cloud Coponents，上面的config工作。 ，

最后我配置了httpmessageconverters解决此问题？

@Override
public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
    // jackson单独配置,参考：https://segmentfault.com/a/1190000041997183
    converters.removeIf(converter -> converter instanceof MappingJackson2HttpMessageConverter);
    converters.add(0, mappingJackson2HttpMessageConverter);
}

这两个项目都启用Weablewbmvc并扩展了WebMvcconFigurer以配置拦截器

    @Configuration
@EnableWebMvc
public class WebConfiguration implements WebMvcConfigurer {