Spring Jackson custom Deserializer does not called

Question

I have a Spring project, and I try to add a custom deserializer to deserialize Date properties depend on their format. If I use it as annotation on Date property, it works fine. But if I add the deserializer to my object mapper, it does not called when Jackson deserialize a date.

I try to apply my custom deserializer like this:

    @Bean
public ObjectMapper objectMapper() {
    ObjectMapper mapper = new ObjectMapper();
    SimpleModule module = new SimpleModule();
    module.addDeserializer(Date.class, new DateDeserializer());
    mapper.registerModule(module);
    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    mapper.configure(DeserializationFeature.FAIL_ON_IGNORED_PROPERTIES, false);
    mapper.configure(DeserializationFeature.FAIL_ON_INVALID_SUBTYPE, false);
    mapper.configure(DeserializationFeature.FAIL_ON_INVALID_SUBTYPE, false);
    mapper.configure(DeserializationFeature.FAIL_ON_NULL_FOR_PRIMITIVES, false);
    return mapper;
}

I don't want to apply an annotation on Date properties every time, I want to use this deserializer by default. What I do wrong?

Answer 1

Thanks the help for everyone. Finally I found the answer at spring.io.

@Configuration
@EnableWebMvc
public class WebConfiguration extends WebMvcConfigurerAdapter {
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
    builder.deserializerByType(Date.class, new DateDeserializer());
    converters.add(new MappingJackson2HttpMessageConverter(builder.build()));
   }
}