var information = {
    "name": name,
    "mobile": mobile,
    "email": email
}

  $.ajax({
            type: 'POST',
         url: 'http://xxx:8080/PostEx/test/testservice',
            jsonpCallback: 'jsonCallback',
            cache: true,
            data: information,
            dataType: 'jsonp',
            jsonp: false,
            success: function (response) {

               alert(response);
            },
            error: function (e) {
                $("#divResult").html("WebSerivce unreachable");
            }
        });

package com.services;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
@Path("/testservice")
public class TestService {
    @POST
    @Consumes("application/json")
    @Produces("application/json")
    public String getData(@QueryParam("toppingid") String toppingid) {
        System.out.println("The toppingid is" + toppingid);
        String toppingobj = "SomeData";
    String  response = "jsonCallback(["+toppingobj.toString()+"])";
        return response;
    }
}