Jackson ObjectMapper - specify serialization order of object properties

Question

I\'m implementing a RESTful web service where user has to send a signed verification token along with the request so that I could ensure that the request has not been tamper

Answer 1

There is an easier way in Spring Boot by specifying a property (in application.properties for example:

spring.jackson.mapper.sort_properties_alphabetically=true

Answer 2

From the Jackson Annotations documentation:

// ensure that "id" and "name" are output before other properties
@JsonPropertyOrder({ "id", "name" })

// order any properties that don't have explicit setting using alphabetic order
@JsonPropertyOrder(alphabetic=true)

Answer 3

In Spring Boot you can add this behaviour globally by adding the following to your Application entry point class:

  @Bean
  public Jackson2ObjectMapperBuilder objectMapperBuilder() {

    Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
    builder.featuresToEnable(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY);

    return builder;
  }