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

Answer 1

Class-wide,

@JsonInclude(JsonInclude.Include.NON_NULL)
public class MyModel { .... }

Property-wide:

public class MyModel {   
    .....

    @JsonInclude(JsonInclude.Include.NON_NULL)
    private String myProperty;

    .....
}

Answer 2

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 3

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

Answer 4

For Spring Boot 1.4.x, you can include the following line to your application.properties

spring.jackson.default-property-inclusion=non_null

Answer 5

  @Bean
  public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder mapperBuilder) {
    return mapperBuilder.build().setSerializationInclusion(Include.NON_NULL);
  }

that works for me

Answer 6

This was an enhancement for Spring Boot 1.3.0.

• Support for spring.jackson.include
• Add properties for Jackson serializationInclusion

So unfortunately you'll need to configure it programmatically on 1.2.3

@JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
public class Shop {
    //...
}