A brief discussion on the problem of obtaining ModelAndView value in js

Below I will share with you a brief discussion on the problem of obtaining the ModelAndView value with js. It has a good reference value and I hope it will be helpful to everyone.

Can't the return value of ModelAndView be received in JS? Does it have to be received in a JSP page?

1 Method 1 [valid]

#Yes, it is the same as the el expression access method .

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; }

in the js in the page jsp file Use this userId as the query condition:

##2 Method 2

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

var result = JSON.parse(responseText);

3 Method three [valid]

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

Ajax core XMLHttpRequest summary

Solving the problem of ajax cross-domain request data cookie loss

Use ajax to change page content and address bar URL without refreshing

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