For Spring Boot 1.2.3, how to set ignore null value in JSON serialization?

Question

In the Spring Boot 1.2.3, we can customize the Jackson ObjectMapper via properties file. But I didn't find a attribute can set Jackson ignore null value when serialization the Object to JSON string.

spring.jackson.deserialization.*= # see Jackson's DeserializationFeature spring.jackson.generator.*= # see Jackson's JsonGenerator.Feature spring.jackson.mapper.*= # see Jackson's MapperFeature spring.jackson.parser.*= # see Jackson's JsonParser.Feature spring.jackson.serialization.*= 

I want to archive the same code like

ObjectMapper mapper = new ObjectMapper(); mapper.setSerializationInclusion(Include.NON_NULL); 

Answer 1

Add the following line to your application.properties file.

spring.jackson.default-property-inclusion=non_null

For versions of Jackson prior to 2.7:

spring.jackson.serialization-inclusion=non_null

Answer 2

This was a good solution before deprecation: @JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)

But now you should use:

@JsonInclude(JsonInclude.Include.NON_NULL) public class ClassName { ...

You can take a look here: https://fasterxml.github.io/jackson-annotations/javadoc/2.7/com/fasterxml/jackson/annotation/JsonInclude.Include.html