This time I will bring you the steps required to obtain ModelAndView with js, and what are the precautions for obtaining ModelAndView with js. The following is a practical case, let's take a look.
1 Method 1 [Valid]
Yes, the access method is the same as elexpression.
Sample code, a userId is stored in the Action of a data display request:@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; }
Use this userId as a query condition in the js in the page jsp file:
<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p pageShow("queryList",data.ext.total); }else{ alert(data.description); } }, error:function(e){ alert("Net error ,try later."); } }); } </script>
2 Method 2
【Effective? 】Is the platform returning js or json? This must be clarified! Assume that thestring returned by the background is stored in responseText, then
If it is js, thenvar result = eval("(" + responseText + ")");
var result = JSON.parse(responseText);
3 Method Three [Effective]
Add hidden fields,<input id="autoflag" type="hidden" value="${autoflag}">
var passflag=document.getElementById("autoflag");
Detailed explanation of the steps for EL to obtain context parameters
Add ellipses when the text exceeds the specified number of lines
Detailed explanation of the steps to return to the previous page from the mini program sharing page
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