Resteasy JAXB output Json field order - json

Question

My code is something like:
#XmlRootElement
#XmlType(propOrder = {"id", "name", "content", "disclaimer", "buttons"})
public class Product {
private String id;
private String name;
private String content;
private String disclaimer;
private List<ProductButton> buttons = new ArrayList<ProductButton>();}
Service code is:
#GET
#Produces(MediaType.APPLICATION_JSON)
#Path("/GetProduct")
public Response getProduct() {
try {
Product product = generateProductById(productId);
return Response.ok().entity(product).build();
}
catch (Exception e) {
log.error(e.getLocalizedMessage(), e);
return Response.serverError().build();
}
}
However the output json string is not in order.
My expected order is same as my object, however the result is: "name", "id", "content"...
Anyone got idea how i can achieve that?
--------------------------------------Updated--------------------------------
#JsonPropertyOrder({"id", "name", "content", "disclaimer", "buttons"})
public class Product {
private String id;
private String name;
private String content;
private String disclaimer;
private List<ProductButton> buttons = new ArrayList<ProductButton>();}

Answer 1

Use the resteasy-jackson-provider and then annotate your class with the #JsonPropertyOrder annotation.
Here is the Maven dependency for the provider. If you are not using Maven just add this jar to your classpath.
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jackson-provider</artifactId>
<version>${resteasy.version}</version>
</dependency>
Example:
#JsonPropertyOrder({
"user_id",
"user_name",
"email"
})
public class User
{
#JsonProperty("user_id")
private Long userId;
#JsonProperty("user_name")
private String username;
private String email;
//Getters and Setters Removed for Brevity
}