@RequestMapping("/activeSlots")
@ResponseBody
public String getTime(@RequestParam("date") String date){

    AvailableTimeSlot ts = new AvailableTimeSlot();
    List<String> bookedTime = ts.getInfo(date);
    LinkedHashMap<String,String> availTimeSlots = ts.availTime(bookedTime);
    Gson gson = new Gson();

    String json = gson.toJson(availTimeSlots);

        return json;
}`

$( "#idDateField" ).change(function() {
         var dateval = $( "#idDateField" ).val();
         var sendData = {dateval: dateval}
         $.ajax({

                //url :"/activeSlots?date="+dateval ,
                 url :"activeSlots?date=" + dateval ,
            //      method : GET,
            //  contentType: 'application/json',
                success: function (data) {
                    alert("coming..")

                    alert(obj.length);
                        $("#nameid").val(data);

                           $("#idTimefield").val(data);

                        },
                        error:function(data) {
                            alert("error:"+data.val);
                        }

            });
        });`