Spring Boot 1.5.4 Filter out null values in json response

Question

I am using Spring Boot 1.5.4 version . I am using spring-ws getWebServiceTemplate() to make a webservice call. The SOAP response has lot of null values for the fields.

I am trying to filter out the null values in the JSON response. None of the following approaches seem to work:

Setting the property in the application.properties:

spring.jackson.default-property-inclusion:NON_NULL`

Setting it in Configuration class using Jackson2ObjectMapperBuilder:

@Bean
    public Jackson2ObjectMapperBuilder objectMapperBuilder() {
        Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();        
        builder.serializationInclusion(JsonInclude.Include.NON_NULL);
        builder.serializationInclusion(JsonInclude.Include.NON_EMPTY);
        return builder;
    }

Please advise.

lva

RICH.LEE · Accepted Answer · 2017-08-18 06:23:44Z

2

I am using Spring Boot 1.5.6.RELEASE version, and you can reference customize-the-jackson-objectmapper

Following code is work:

 @SpringBootApplication
    public class Application {

        @Bean
        public Jackson2ObjectMapperBuilder objectMapperBuilder() {
            Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
            builder.serializationInclusion(JsonInclude.Include.NON_NULL);
            return builder;
        }

        public static void main(String[] args) {
            SpringApplication.run(DbeeApiApplication.class, args);
        }
    }

Or you can filter from MappingJackson2HttpMessageConverter, for example:

@Configuration
class WebMvcConfiguration extends WebMvcConfigurationSupport {
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        for(HttpMessageConverter<?> converter: converters) {
            if(converter instanceof MappingJackson2HttpMessageConverter) {
                ObjectMapper mapper = ((MappingJackson2HttpMessageConverter)converter).getObjectMapper();
                mapper.setSerializationInclusion(Include.NON_NULL);
            }
        }
    }
}

answered Aug 18, 2017 at 6:23

RICH.LEE

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1 Comment

Dhaval Simaria Over a year ago

Please provide some explanation to your answer as to how it will solve the issue. That will also help avoid same issues in future. Code-only answers are not highly appreciated.

nrkkalyan · Accepted Answer · 2019-01-02 19:51:49Z

1

Using the following in application.properties worked.

spring.jackson.default-property-inclusion=NON_NULL

answered Jan 2, 2019 at 19:51

nrkkalyan

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1 Comment

vidit mathur Over a year ago

nice and clean solution

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