Sending and Retrieving JSON data from Jersey API

[Ayan Biswas]

I am trying to send JSON object to and from a restful webservice implemented through a Jersey API
Here is my code for the service

   @Path("/hello")
    public class Hello {

    @POST
    @Path("{id}")
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.APPLICATION_JSON)
    public JSONObject sayPlainTextHello(@PathParam("id")JSONObject inputJsonObj) {
	  
    String input = (String) inputJsonObj.get("input");
    String output="The input you sent is :"+input;
    JSONObject outputJsonObj = new JSONObject();
    outputJsonObj.put("output", output);

    return outputJsonObj;
     }
    } 

Here is my code for the client

  ClientConfig config = new DefaultClientConfig();
    Client client = Client.create(config);
    WebResource service = client.resource(getBaseURI());
    JSONObject inputJsonObj = new JSONObject();
    inputJsonObj.put("input", "Value");
    System.out.println(service.path("rest").path("hello").accept(MediaType.APPLICATION_JSON).entity(inputJsonObj).post(JSONObject.class,JSONObject.class));

But this shows the following error

Exception in thread "main" com.sun.jersey.api.client.ClientHandlerException: com.sun.jersey.api.client.ClientHandlerException: A message body writer for Java type, class java.lang.Class, and MIME media type, application/octet-stream, was not found

Can anybody help?Is there any tutorial that explains how to do this?

[H Paul]

While looking for my issue Providers and MessageBodyWriter, I came across this article.
Hope it help if you read it.

http://www.ibm.com/developerworks/library/wa-jaxrs/

[kiran kanaparthi]

Here is the Server Side Code

@POST
@Path("/post/withresponse/onlystring")
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response createTrackInJSONFormString(String trackName) {
String result = "Track saved : " + trackName;
System.out.println("trackname from the User is : "+ trackName+" and result"+result);
Gson gson = new Gson();
Person person = new Person();
person.setName("Kiran");
person.setAge("21");
person.setAddress("123 Main Street");
String jsonString = gson.toJson(person);
System.out.println("This is the messagePost from Jersey Service SERVICE_NAME is 333333 /post/withresponse/onlystring");
return Response.status(201).entity(jsonString).build();

}

Here is the Sample JSP Client
<form id="postFormThree" action="./rest/shade/post/withresponse/onlystring"
method="post">
<input type="text" name="trackName" value="onlyStringStrackNameONLY">
<input type="submit" name="submitPost" value="submitPost-FORM-postFormThree" />
</form>


Both were working when I tested them on Jersey-bundle-1.16