How do you call a controller method from an onchange event?

Question

How do you call a controller method from an onchange event?

I'm using Spring MVC.

I have a <form:list> and I wish to update the current page when an onchange event is triggered in the list.

Answer 1

Just submit the form to the server. You can use the inherited form.submit() function in JS for this.

onchange="submit()"

In the server side you can do your conditional thing based on the submitted input values.

As a modern alternative, you can also do this totally transparently by firing an asynchronous HTTP request using JS (also known as Ajax). But since you're using Spring MVC and I don't do Spring MVC, I can't suggest how to properly glue Ajax with Spring MVC. You can at least find some articles at Google, for example this one.