JSTL: Check if Submit was clicked

Question

How can I check if the Submit button was clicked in JSTL?

Answer 1

Make sure the button has a name attribute so that when it's pressed, an associated request parameter will be submitted. For JSTL, it then becomes as simple as checking any other request param: ${param.nameOfTheButton}.

Answer 2

I dont think you can check if the submit button was clicked or not using JSTL. But you can know which submit button was clicked inside a servlet etc... for example if the button is

<input type="submit" name="Go"/>

for jsps use ${param.Go} for servlets use request.getParameter("Go");