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https://issues.apache.org/jira/browse/WW-5285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17694333#comment-17694333
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Lukasz Lenart commented on WW-5285:
-----------------------------------
The current implementation is a global option, the same as
{{struts.multipart.maxSize}} which applies to whole request (and not to a
single file). The {{maximumSize}} option in interceptor applies to a single
file, and checking the number of files here is way too late as the request was
already parsed.
https://struts.apache.org/core-developers/file-upload.html#file-size-limits
> Upgrade commons-fileupload to ver 1.5 and add option to limit number of
> accepted files
> --------------------------------------------------------------------------------------
>
> Key: WW-5285
> URL: https://issues.apache.org/jira/browse/WW-5285
> Project: Struts 2
> Issue Type: Improvement
> Components: Core
> Reporter: Lukasz Lenart
> Assignee: Lukasz Lenart
> Priority: Major
> Fix For: 6.2.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> With a new version of commons-fileupload a new option has been added to limit
> number of uploaded files (not size, but number). It would be good to support
> this in Struts as well by adding a new constant "struts.multipart.maxFiles"
> [https://github.com/apache/commons-fileupload/pull/185]
>
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