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Apache Wink provides a set providers that are capable of serializing a number of data models into JSON representations. There are currently 3 Apache Wink extensions that provide JSON support. Each has unique features that may make one more suitable for your particular application.

wink-json-provider (org.json)

The wink-json-provider extension is provided in the binary distribution and uses the JSON.org classes to provide JSON support. Include the wink-json-provider-<VERSION>.jar in the classpath and the providers will automatically be registered. You will also need the org.json JAR which is provided in the ext/wink-json-provider/lib folder.

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Examples

Producing and Consuming JSON

    @GET
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public JSONObject postJSON(JSONObject requestJSON) {
        String property = requestJSON.getString("property");
        JSONObject jobj = new JSONObject();
        return jobj;
    }

    /* Book is a JAXB annotated class */

    @GET
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public Book postJSONBook(Book requestBookEntity) {
        String title = requestBookEntity.getTitle();
        /* other code */
        Book response = new Book();
        return response;
    }

wink-jettison-provider (org.codehaus.jettison)

The wink-jettison-provider extension is provided in the binary distribution and uses the Jettison code to provide JSON support. Include the wink-jettison-provider-<VERSION>.jar in the classpath and the providers will automatically be registered. You will also need the Jettison library JARs which are provided in the ext/wink-jettison-provider/lib folder.

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Example

Producing and Consuming JSON

    /* Book is a JAXB annotated class */

    @GET
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public Book postJSONBook(Book requestBookEntity) {
        String title = requestBookEntity.getTitle();
        /* other code */
        Book response = new Book();
        return response;
    }

Jackson JSON Processor

Jackson JSON Processor may also suit your needs and can be used. They provide their own JAX-RS entity provider. See their documentation for more information.