将java后台的代码加载到前台页面select标签

java 后台代码：
List<SuperRecord> list = new ArrayList<SuperRecord>();
        list = this.resClassifyService.getChildeNodeList(nodeId);
        JSONArray jsonArray = new JSONArray();
        for (int i = 0; i < list.size(); i++)
        {
            JSONObject p_json = new JSONObject();
            p_json.put("id", list.get(i).get("nodeid"));
            p_json.put("name", list.get(i).get("nodename"));
            jsonArray.add(p_json);
        }
        this.getResponse().setContentType("text/html; charset=UTF-8");
        try
        {
            this.getResponse().getWriter().write(jsonArray.toString());
        } catch (IOException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


前台js处理：
jQuery.post("/system/classify/getDropDownList.action", {
            'nodeId' : nodeId
        }, function(data) {
            var sec = document.getElementById("sec");

            /*
             * 每次动态加载先清空下拉单，再添加新的选项
             */
            sec.options.length = 0;
            var myobj = eval(data);
            for ( var i = 0; i < myobj.length; i++) {
                sec.options.add(new Option(myobj[i].name, myobj[i].id));
            }

        });


页面
 <select id="sec" style="width: 120px;"
                        <option value="">请选择---</option>
                    </select>