Jackson unable to consider @XmlElement while serializing to JSON

Question

I have a contract class that contains elements with @XmlElement tags. For ex

 @XmlElement(name = \"balancemoney\")
 protected Amount balanceMoney;


        

Answer 1

According to Using JAXB annotations with Jackson: Enabling JAXB annotation support, you need to set mapper.getDeserializationConfig().setAnnotationIntrospector(new JaxbAnnotationIntrospector()); to enable Jackson to use JAXB annotation.

Answer 2

• Maven dependency - pom.xml:

  <dependency>
      <groupId>com.fasterxml.jackson.module</groupId>
      <artifactId>jackson-module-jaxb-annotations</artifactId>
      <version>2.6.1</version>
  </dependency>
  

• Custom ObjectMapper configuration (uncomment all annotations to register this mapper as default in Spring):

  //@Configuration
  public class JacksonConfig {
  
      //@Primary
      //@Bean
      public static ObjectMapper createCustomObjectMapper() {
          ObjectMapper mapper = new ObjectMapper();
          AnnotationIntrospector aiJaxb = new JaxbAnnotationIntrospector(TypeFactory.defaultInstance());
          AnnotationIntrospector aiJackson = new JacksonAnnotationIntrospector();
          // first Jaxb, second Jackson annotations
          mapper.setAnnotationIntrospector(AnnotationIntrospector.pair(aiJaxb, aiJackson));
          return mapper;
      }
  }
  

• Code to display as JSON:

  public void displayJSON(Object reqResp) throws JsonProcessingException{
      ObjectMapper mapper = JacksonConfig.createCustomObjectMapper();
      LOG.info(mapper.writeValueAsString(reqResp));
  }