How to modify the ObjectMapper in JHipster project? - spring-mvc

Question

I am having trouble configuring the default ObjectMapper in JHipster to allow JsonViews and also setting to false the FORCE_LAZY_LOADING property of the Hibernate4Module module.
I have tried three things without success:
1) Create a #Bean using the #Primary annotation to replace the default bean:
#Bean
#Primary
public ObjectMapper viewsObjectMapper(){
ObjectMapper mapper = new ObjectMapper();
Hibernate4Module hibernateModule = new Hibernate4Module();
hibernateModule.configure(Hibernate4Module.Feature.FORCE_LAZY_LOADING, false); mapper.registerModule(hibernateModule);
mapper.disable(MapperFeature.DEFAULT_VIEW_INCLUSION);
return mapper;
}
2) I modified the #Bean Hibernate4Module in the DatabaseConfiguration class as follows:
#Bean
public Hibernate4Module hibernate4Module() {
Hibernate4Module hibernateModule = new Hibernate4Module();
hibernateModule.configure(Hibernate4Module.Feature.FORCE_LAZY_LOADING, true);
return hibernateModule;
}
3) And this solution.
Any help will be appreciated.

Answer 1

You can do it as stated in Spring Boot's documentation. In Spring Boot, it is not necessary to declare the ObjectMapper in a #Configuration class that extends the WebMvcConfigurationSupport. JHipster creates a #Configuration class named WebConfigurer where you can put this code:
#Bean
public ObjectMapper viewsObjectMapper() {
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.disable(MapperFeature.DEFAULT_VIEW_INCLUSION);
Hibernate4Module hibernateModule = new Hibernate4Module();
hibernateModule.configure(Hibernate4Module.Feature.FORCE_LAZY_LOADING, false);
objectMapper.registerModule(hibernateModule);
return objectMapper;
}
#Bean
public MappingJackson2HttpMessageConverter jackson2Converter() {
MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
converter.setObjectMapper(viewsObjectMapper());
return converter;
}