Anything you add to the model is made available to your view - that's the purpose of the model.
If your view is jsp, then I believe the model attributes are added as attributes to the request, and are available via request.getAttribute("var_name").
However, it is much simpler to use the JSTL standard tag library, in which case you can get the value by
or just by
depending on which version of servlet/JSP you are using.
Hope this helps. The examples that come with Spring should help further.