Question

I am trying to get multiple values from a multiple select option box in html.

I get in to my controller:

/test?t=1&t=2&t=3

In the controller, I try to get the int array:

@RequestParam(value = "t", required = true) int[] t

But when I check it using:

t.length

I only see 1, which means Spring only gets 1 parameter, but I expected 3.
Anybody have any idea?

Answer 1

I don’t think that spring will convert a parameter array to a specific type other than String, so you should try the following:

@RequestParam(value = "t", required = true) String[] t

and then use Integer.parseInt() to convert the String to an int.