Re: how to iterate through a map in struts

From:

"ck" <chandankumar.r@gmail.com>

Newsgroups:

comp.lang.java.programmer

Date:

9 Apr 2007 03:36:05 -0700

Message-ID:

<1176114965.288543.305170@q75g2000hsh.googlegroups.com>

"vyshu" <vysh...@gmail.com> wrote:
i hav a form bean LoginForm.and a getter mathod getID(),which returns
the values of a map if passed the key as parameter....my code..
/*public String getId(String key)
        {
                return (String)mapelements(key);
        }
        public Object mapelements(String key)
        {
                Map x=new HashMap();
                x.put("1","vaisahk");
                x.put("2","jovin");
                x.put("3","praveen");
                x.put("4","subhash");
                return x.get(key);
        }
*/
now i want to print this in the jsp page where i am fowarding from
here..
this is my action code..
LoginForm obj=(LoginForm)form;
                sess=obj.getUser();
HttpSession session=req.getSession();
                session.setAttribute("usersession",form);

and in the forwarded jsp page i want to print the values of the
map....

Why not set the 'id' in the session scope rather than setting the
entire form?

HttpSession session=req.getSession();
session.setAttribute("usersession",form);

Instead of the above try this

session.setAttribute("userId",form.getId(key));

In jsp, use JSTL to get the Id like this

${userId}

Would this make it simpler?

By the way to access mapelements() method you would need to provide a
getter method.

--
Ck
http://www.gfour.net