MultipartHttpServletRequest cannot handle multiple file inputs with same name-attribute [SPR-3964]

[spring-projects-issues]

Eirik Lygre opened SPR-3964 and commented

MultipartHttpServletRequest tracks and exploses uploaded files in a java.util.Map (through setMultipartFiles() and getFileMap()), with the key of the map being the name-attribute from the html-form. This means that files uploaded from the html-code will only ever show a single file, even though the user may have selected more than one:

...
<input type="file" name="attachment" />
<input type="file" name="attachment" />
<input type="file" name="attachment" />
...

I haven't found anything in the relevant standard (rfc1867 et al) that prohibits this, and indeed the underlying Jakarta Commons FileUpload infrastructure supports this through it's use of a List rather than a Map.

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No further details from SPR-3964

[spring-projects-issues]

Eirik Lygre commented

This was fixed in Spring 3.0, ref http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/web/multipart/MultipartRequest.html#getMultiFileMap(). This issue can be closed.