This is a multi-module project that contains Jackson-based JAX-RS (*) providers for following data formats:
Providers implement JAX-RS
MessageBodyWriter handlers for specific
data formats. They also contain SPI settings for auto-registration.
(*) NOTE! JAX-RS is the "old" API defined under
javax.ws.rs; in 2019 or so, Oracle decided to force
a forking of this into "Jakarta" variant under
As of 2021 most frameworks still use the old API but if you do need/want to use newer one,
check out Jakarta-RS provider repo at jackson-jakarta-rs-providers
To use JAX-RS on Maven-based projects, use dependencies like:
<dependency> <groupId>com.fasterxml.jackson.jaxrs</groupId> <artifactId>jackson-jaxrs-json-provider</artifactId> <version>2.12.3</version> </dependency>
(above is for JSON provider; modify appropriately for other providers)
Usage: registering providers
Due to auto-registration, it should be possible to simply add Maven dependency (or include jar if using other build systems) and let JAX-RS implementation discover provider. If this does not work you need to consult documentation of the JAX-RS implementation for details.
Here are some links that may help:
- Configure Jackson as JSON Provider in JAX-RS 2.0
- JAX-RS and Open Liberty: BYO Jackson
- Using Jackson as JSON provider in Jersey 2.x
Usage: registering supporting datatypes module
Starting with Jackson 2.8, there is a small supporting datatype module,
It will not be auto-registered automatically (unless user calls
instead, user has to register it by normal means:
ObjectMapper mapper = JsonMapper.builder() // or whichever format backend we have .addModule(new Jaxrs2TypesModule()) .build(); // and then register mapper with JAX-RS provider(s)
and ensuring that configured mapper is used by JAX-RS providers.
It is possible that later versions of providers may offer additional ways to get datatype module registered.
Annotations on resources
In addition to annotation value classes, it is also possible to use a subset of Jackson annotations with provider.
Here is a short list of supported annotations that work with all formats:
@JsonViewcan be used to define active view for specific endpoint
@JsonRootNamecan be used to specify alternate rootname; most often used with XML, but possibly with JSON as well.
@JacksonAnnotationsInsidemeta-annotation may be used as a marker, to create "annotation bundles", similar to how they are used with value type annotations
com.fasterxml.jackson.jaxrs.annotation.JacksonFeaturescan be used with all provid to enable/disable
DeserializationFeaturefor data-binding configuration
JsonGenerator.Featurefor low(er) level Streaming read/write options
In addition there are format-specific annotations that may be used:
- JSON has:
JSONPwrapping for serialized result
The JSON/JAX-RS module has multiple names depending on the version in use. To enable modular usage, add the requires statement that pertains directly to the implementation you are using.
requires javax.ws.rs.api; //Older libraries requires jakarta.ws.rs; //Newer libraries
Starting with Jackson 2.13, there is a fully separate set of providers for "Jakarta-RS", see: jackson-jaxrs-providers.
But Jackson 2.12 also has (just for that version),
jakarta classifier variant of JAXB providers included here.
You MAY be able to use these variants by using dependency like:
<dependency> <groupId>com.fasterxml.jackson.jaxrs</groupId> <artifactId>jackson-jaxrs-json</artifactId> <classifier>jakarta</classifier> </dependency>
Jackson components are supported by the Jackson community through mailing lists, Gitter forum, Github issues. See Participation, Contributing for full details.
Available as part of the Tidelift Subscription.
The maintainers of
jackson-jaxrs-providers and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. Learn more.
For documentation, downloads links, check out Wiki