String filterIdStr = request.getParameter("filterId");
UUID filterId = DataAccessFactory.getInstance().createUUID(filterIdStr);
DataAccessSession das = DataAccessFactory.getInstance().getSysDas();
Filter filter = das.queryFilter(filterId);
FilterField groupField = null;
List<FilterField> showList = new ArrayList<FilterField>();
List<FilterField> backList = new ArrayList<FilterField>();
List<String> showFieldId = new ArrayList<String>();