RESTEasy / Jettison, return Java object as JSON without the root node

Question

I'm using RESTEasy to return Java objects as JSON objects (which is using Jettison Mapped Convention for JSON marshelling).

But I don't want it to return the root node.

For example

@XmlRootElement
public class Car{
    private Integer id;
    private String name;
}

An object of this class would result in JSON:

{"Car":{"id":6,"name":"someName"}}

Because it's actually coming from

<Car>
    <id>6</id>
    <name>someName</name>
</Car>

But I don't want the root node. I just want:

{"id":6,"name":"someName"}

So I can use it with client libraries likes Backbone.js

Is there any way (some annotation) to force this on the JSON marshelling ?

Sam,

Sam, did you find any answer for your question? – Ali Shakiba Mar 05 '13 at 10:53 — Ali Shakiba, Mar 05 '13 at 10:53

score 3 · Accepted Answer · answered Dec 15 '11 at 07:50

I was faced with the exact same problem. After doing some research I found people suggested using resteasy-jackson-provider instead of jettison. It was claimed that jettison has a few issues and that what you're experiencing is one of them. I switched to Jackson and found that it solved this issue and probably a few others that I wasn't aware of. If you're using maven:

<dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-jackson-provider</artifactId>
    <version>2.1.0.GA</version>
</dependency>

If you do this, you may see some collisions between jettison. To avoid those make sure you don't have the jettison jars on your classpath.

score 1 · Answer 2 · answered May 08 '12 at 03:46

1

You can define you Backbone.Mode like this:

var Car = Backbone.Model.extend({
    defaults: function() {
        return {Car: {id: 0, name: 'bar'}};
    }
}

answered May 08 '12 at 03:46

Jian Lyu

11
3

score 1 · Answer 3 · edited May 23 '17 at 12:16

1

I found a jettison related solution on the answer "JAX-RS - JSON without root node in apache CXF".

Jettison has a parameter called dropRootElement that does what the name says. In my case, the following addition of a Configuration-object did the job:

Configuration configuration = new Configuration();
configuration.setDropRootElement(true);

new JettisonMappedXmlDriver(configuration)
    .createWriter(this.getOutputStream()));

Hope it helps...

edited May 23 '17 at 12:16

Community

1
1

answered Jan 22 '15 at 09:14

L-Ray

1,637
1
16
29

Thanks, that helps a lot when you need/want to stick up with the `JettisonMappedXmlDriver`! – Laimoncijus May 20 '16 at 15:43

RESTEasy / Jettison, return Java object as JSON without the root node

3 Answers3