How to access Spring MVC model object in javascript file?

Question

I am using spring 3 MVC and i have below classes.

External system would call my application using below URL:

http://somehost/root/param1/param2/param3

I have a spring MVC controller method as below:

public ModelAndView showPage(@PathVariable("param1") String paramOne, @PathVariable("param2") String paramTwo, @PathVariable("param3") String paramThree, HttpServletResponse response) {  
        SomeModel model = new SomeModel(paramOne, paramTwo, paramThree);
       return new ModelAndView("SomeJsp", "model", model);
    } 

SomeModel.java

public class SomeModel{
 private String paramOne;
 private String paramTwo;
 private String paramThree;
//constructor
 //setters and getters

}

SomeJsp.jsp

//In this Jsp i have a div with few elements. Div is not visible by default.
//This jsp has externalJavascript included.
//I enable div and set the data into div elements using jquery.
<script src="<c:url value="/resources/js/extjs.js" />" type="text/javascript"></script>

externalJs.js

$(document).ready(function() {

    //Here i need the model returned using ModelAndView
//I can get data from model and set into div elements.


});

In external java script file, is it possible to get the model content? If possible, how can i do that?

Thanks!

Answer 1

Another solution could be using in JSP: <input type="hidden" id="jsonBom" value='${jsonBom}'/>

and getting the value in Javascript with jQuery:

var jsonBom = $('#jsonBom').val();

Answer 2

JavaScript is run on the client side. Your model does not exist on the client side, it only exists on the server side while you are rendering your .jsp.

If you want data from the model to be available to client side code (ie. javascript), you will need to store it somewhere in the rendered page. For example, you can use your Jsp to write JavaScript assigning your model to JavaScript variables.

Update:

A simple example

<%-- SomeJsp.jsp --%>
<script>var paramOne =<c:out value="${paramOne}"/></script>