@Nullable open static fun getDoubleParameter(request: ServletRequest, name: String): Double
Get a Double parameter, or null if not present. Throws an exception if it the parameter value isn't a number.
request - current HTTP request
name - the name of the parameter
ServletRequestBindingException - a subclass of ServletException, so it doesn't need to be caught
Return
the Double value, or null if not present
open static fun getDoubleParameter(request: ServletRequest, name: String, defaultVal: Double): Double
Get a double parameter, with a fallback value. Never throws an exception. Can pass a distinguished value as default to enable checks of whether it was supplied.
request - current HTTP request