Jackson automatic formatting of Joda DateTime to ISO 8601 format

I was able to get the answer to this from the Jackson user mailing list, and wanted to share with you since it is a newbie issue. From reading the Jackson Date FAQ, I did not realize that extra dependencies and registration are required, but that is the case. It is documented at the git hub project page here https://github.com/FasterXML/jackson-datatype-joda

Essentially, I had to add another dependency to a Jackson jar specific to the Joda data type, and then I had to register the use of that module on the object mapper. The code snippets are below.

For my Jackson Joda data type Maven dependency setup I used this:

<dependency>    <groupId>com.fasterxml.jackson.datatype</groupId>    <artifactId>jackson-datatype-joda</artifactId>    <version>${jackson.version}</version></dependency>

To register the Joda serialization/deserialization feature I used this:

ObjectMapper objectMapper = new ObjectMapper();objectMapper.registerModule(new JodaModule());objectMapper.configure(com.fasterxml.jackson.databind.SerializationFeature.    WRITE_DATES_AS_TIMESTAMPS , false);

Using Spring Boot.

Add to your Maven configuration...

<dependency>  <groupId>com.fasterxml.jackson.datatype</groupId>  <artifactId>jackson-datatype-joda</artifactId>  <version>2.7.5</version></dependency>

Then to your WebConfiguration...

@Configurationpublic class WebConfiguration extends WebMvcConfigurerAdapter{    public void configureMessageConverters(List<HttpMessageConverter<?>> converters)    {      final MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();      final ObjectMapper objectMapper = new ObjectMapper();      //configure Joda serialization      objectMapper.registerModule(new JodaModule());      objectMapper.configure(          com.fasterxml.jackson.databind.SerializationFeature.            WRITE_DATES_AS_TIMESTAMPS , false);      // Other options such as how to deal with nulls or identing...      objectMapper.setSerializationInclusion (         JsonInclude.Include.NON_NULL);      objectMapper.enable(SerializationFeature.INDENT_OUTPUT);      converter.setObjectMapper(objectMapper);      converters.add(converter);      super.configureMessageConverters(converters);    }}

In Spring Boot the configuration is even simpler. You just declare Maven dependency

    <dependency>        <groupId>com.fasterxml.jackson.datatype</groupId>        <artifactId>jackson-datatype-joda</artifactId>    </dependency>

and then add configuration parameter to your application.yml/properties file:

spring.jackson.serialization.write-dates-as-timestamps: false