jQuery("#campTimetable").jqGrid({

url:'/admin/getTimetable',

datatype: 'json',

...

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

// TODO Auto-generated method stub

logger.info("TimetableServlet doGet");

HttpSession session = request.getSession(true);

try

{

timetableList = getListFromSomeWhere ...

JSONObject responcedata=new JSONObject();

net.sf.json.JSONArray cell=new net.sf.json.JSONArray();

net.sf.json.JSONArray cellarray=new net.sf.json.JSONArray();

net.sf.json.JSONObject cellobj=new net.sf.json.JSONObject();

responcedata.put("page", Long.parseLong("1"));

Iterator<Timetable> itr = timetableList.iterator();

while(itr.hasNext()){

Timetable t = itr.next();

cellobj.put("id", t.getId());

cell.add(t.field0().toString());

cell.add( StringUtil.StringToTime( t.field1()));

cell.add( StringUtil.StringToTime( t.field2()));

cellobj.put("cell", cell);

cell.clear();

cellarray.add(cellobj);

}

responcedata.put("rows", cellarray);

response.setContentType("applisation/json");

PrintWriter out = response.getWriter();

out.print(responcedata);

out.flush();

}

catch(Exception e)

{

logger.error("Error TimetableServlet goGet: " + e.toString());

}

}