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?

Solution

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()));
   }
}

Comments

[jmiguel]

That's the problem, it's NOT running, or at least there's no process, no indication at all of the program running and how could there be if I deleted the installation folder in which the path to executable was: C:\Program Files (x86)\Faronics\Deep Freeze\Install\C-0\DFServ.exe. But somehow it waited for the 5 or 6 thawed reboots I mentioned earlier and now it's back on business freezing C: again. Main problem: I don't have installation folder so I can't uninstall it, is there any other approach to fix this that doesn't need uninstalling the program to make it stop working???

[jmiguel]

No, it won´t. When I run it, it displays the error message I wrote earlier: "Deep Freeze Standard must be disabled before any Install/Uninstall can proceed"

[Kirk]

I have no idea now but, Any SafeMode tries? did you try that?

[Kirk]

check my updated post

[Kirk]

yes, maybe another PC, however you need that installation foler and files

[jmiguel]

Oh, about that file Persi0.sys, yeah, I might have deleted it too, looks like I deleted all my options away,ggg.

[jmiguel]

that's right, won't I get those if I install it in another pc, including the Persi0.sys file??

[Kirk]

you just copy all files from new installation folder and try

[user3057944]

I define ObjectMapper bean in '@Configuration' class. I don't want to use ObjectMapper "manually", I was told Jackson use that ObjectMapper defined at Bean. But it seems to it it does not.

[user3057944]

You could right, maybe Jackson does not use that ObjectMapper I define in my configuration class. So I added the Bean you advised, but when Jackson deserializing a Date, my deserializer still is not called.

[João Dias]

Well, then the only option is that you are importing a different Date in your ObjectMapper than the one that you have in your model. It is highly unlikely that this is the case, but can you double-check it? Minor detail that is not related: you have mapper.configure(DeserializationFeature.FAIL_ON_INVALID_SUBT‌​YPE, false); duplicated in your configuration.

[ray]

Can you add code for your DateDeserializer and add where you deserialize.

[ray]

Also make sure your configuration class in same base-package

[João Dias]

Great! You can upvote answers if they helped you ;)