浅谈js获取ModelAndView值的问题

 @RequestMapping(value="/diary")  public ModelAndView toDiaryList(HttpSession session){    ModelAndView view = new ModelAndView("/diary_list");    TbUser user = (TbUser)session.getAttribute(SystemConstant.CURRENT_USER);    //set info of current user    if(user!=null){      Integer id = user.getId();      view.addObject("userId",id);    }    return view;  }

<script type="text/javascript">    var path = '<%=basePath%>';    var author=${userId};    $(document).ready(function(){      queryList();    });    function queryList(){      $.ajax({        type : 'POST',        url : path+'queryDiaryList', //通过url传递name参数        data : {            author:author,            page:_currentPage,            pageSize:_pageSize,            type:$("#queryType").val()          },        dataType : 'json',        success:function(data){          if(data.status){            showTable(data.result);            //调用分页插件，初始化分页Div            pageShow("queryList",data.ext.total);          }else{            alert(data.description);          }        },        error:function(e){          alert("Net error ,try later.");        }      });    }    </script>

var result = eval("(" + responseText + ")");

var result = JSON.parse(responseText);

<input id="autoflag" type="hidden" value="${autoflag}"> 

var passflag=document.getElementById("autoflag");