public NutMap data(int length, int start, int draw, List<DataTableOrder> orders, List<DataTableColumn> columns, Cnd cnd, String linkname) {
        NutMap re = new NutMap();
        if (orders != null && orders.size() > 0) {
            for (DataTableOrder order : orders) {
                DataTableColumn col = columns.get(order.getColumn());
                cnd.orderBy(Sqls.escapeSqlFieldValue(col.getData()).toString(), order.getDir());
            }
        }
        Pager pager = new OffsetPager(start, length);
        re.put("recordsFiltered", this.dao().count(getEntityClass(), cnd));
        List<?> list = this.dao().query(getEntityClass(), cnd, pager);
        if (!Strings.isBlank(linkname)) {
            this.dao().fetchLinks(list, linkname);
        }
        this.dao().fetchLinks(list, null);
        re.put("data", list);
        re.put("draw", draw);
        re.put("recordsTotal", length);
        return re;
    }

我改造的原始方式不知道对不对 ，因为我要在列表里面获取关联对象的值

ok ，谢谢！