In a Struts 2 application we use fileUpload
interceptor to get file from the user.
The fileUpload
has some configurations maximumSize
, allowedTypes
, allowedExtensions
that can be used as:
<interceptor-ref name="fileUpload">
<param name="maximumSize">200000</param>
<param name="allowedTypes">text/plain</param>
<param name="allowedExtensions">txt</param>
</interceptor-ref>
Is it possible to make these parameters dynamic !?
For example :
<param name="maximumSize">${maxsize}</param>
and let the action set its max file size.
It's not possible to make these parameters dynamic. But at runtime when interceptor is invoked you can get the value dynamically
String maxsize = TextParseUtil.translateVariables(maximumSize, actionInvocation.getStack());
The action is invoked after interceptors chain, so it can't set the value. However you can translate the value before chained result.