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jsp and forms

kevin schmidt
Ranch Hand

Joined: Aug 24, 2001
Posts: 85
How do I retrieve information from a form in jsp. I'm using a <select> drop box. When the user selects something from it, I want the page to recognize what was selected immediately and reload the page. Also, how do I get the page to reload immediately? I guess you could say that the page is dynamic. TIA.
Chris Mathews
Ranch Hand

Joined: Jul 18, 2001
Posts: 2712
To retrieve form parameter in a JSP page use request.getParameter("param") where param is the name of the parameter.
To automatically submit a page when a item is selected in a drop-down use the onChange event of DHTML. Then use javascript to submit the form.
<form name="testForm" action="action.jsp">
<select name="testSelect" onChange="javascript:document.forms['testForm'].submit();">
<option value="1">One</option>
<option value="2">Two</option>
I didn't test it so if it doesn't work exactly... oh well.
Ryan Yeap

Joined: Apr 28, 2001
Posts: 28
Well, anyone tested? Does it work? =D

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kevin schmidt
Ranch Hand

Joined: Aug 24, 2001
Posts: 85
I managed to get something to work, still have a little bit of a problem though.
I agree. Here's the link:
subject: jsp and forms
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