CODEWITHSUNDEEP
springjspspring-mvcmodel
PM 77-1
PM 77-1

Reputation: 13334

Spring Web MVC: How to retrieve model (passed as map) in a view?

When using ModelandView constructor with two parameters - String viewName, Map model - to pass multiple parameters to a view JSP, how do I then retrieve them?

If they are retrieved like map values, then what is the map name?

Let say, my controller code has the following:

    Map<String, Object> myModel = new HashMap<String, Object>();
    myModel.put("1", "one");
    myModel.put("2", "two");
    return new ModelAndView("view", myModel);

What do I need to put into JSP so "one" and "two" appear on the page?

I'm using Java EE 7, Spring 3.2.4, GlassFish 4 server

UPDATE:

SOLVED (See the accepted answer).

Since this post continues to receive downvotes I would like to point out that I posted what I unsuccessfully tried and what actually worked in my response to the accepted answer below on the same day the question was posted and answered.

Upvotes: 2

Views: 10654

Answers (2)

Larry.Z
Larry.Z

Reputation: 3724

If you really want to put "1" as model key, you can retrieve the value like this

  1. <%out.print(request.getAttribute("1"));%>
  2. using el like this ${requestScope['1']}

Note that put "1" as model key is really a bad idea.

Upvotes: 2

LaurentG
LaurentG

Reputation: 11757

The model objects will be exposed using their keys:

Map<String, Object> myModel = new HashMap<String, Object>();
myModel.put("myVar", "myValue");
return new ModelAndView("view", myModel);

In the JSP file:

...
<p>${myVar}</p>
...

I am not sure if it would work with your given variable names (1 and 2). But I would recommend to use real good names for your variable, as in your Java code.

Note that you could create the ModelAndView without to have to create a Map like this:

ModelAndView modelAndView = new ModelAndView("view");
modelAndView.add("myVar", "myValue");
return modelAndView;

Upvotes: 3

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