How to Change init-parameters at Runtime?

Question

If I modify the XML to change the value of init parameter I see the changes only when web-app is redeployed.

My question is cant I get around this by setting the values at run time.Is there any API that allow me to change the values dynamically.

Answer 1

It's called init-parameter for a reason. So, you can't.

But you can change values at runtime, that's no problem.

1. After reading the init parameters put them as attributes of the ServletContext (ctx.setAttribute("name", value))
2. Create a small (password-protected) page that lists all attributes of the ServletContext and gives the ability to change them.