how to upload multiple files in grails

Question

I have a form that contains multi file upload like this one

<g:form name="legalActionForm" controller="legalAction" action="save" enctype="multipart/form-data">
<input type='file' name='documentFile'/> <input type='text' name='documentDate'/>
<input type='file' name='documentFile'/> <input type='text' name='documentDate'/>
<input type='file' name='documentFile'/> <input type='text' name='documentDate'/>
<input type='file' name='documentFile'/> <input type='text' name='documentDate'/>
<input type='file' name='documentFile'/> <input type='text' name='documentDate'/>
<input type='submit' value='update'/>
</g:form>

user can add more if needed ... how to get each file using iterators ?

if only one file I use request.getFile('documentFile'); but if I tried with request.getFileNames().each{obj -> println("${obj}"); } I only got the first one ..

possible duplicate of How to iterate over uploaded files in Grails — Rob Hruska
– Rob Hruska, Commented Dec 10, 2010 at 16:41
The reason you only received the first 'documentFile' when using request.fileNames.each {} is because your names are not unique in your form. Jinesh's answer fixes this; I also addressed this when you asked this question a couple months ago. — Rob Hruska
– Rob Hruska, Commented Dec 10, 2010 at 16:43

Cassio Landim · Accepted Answer · 2012-05-03 06:15:10Z

9

request.getMultiFileMap().documentFile.each {
    println it.originalFilename
}

answered May 3, 2012 at 6:15

Cassio Landim

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1 Comment

Jake Over a year ago

This is the correct solution when using the multiple attribute of the input tag.

Jinesh Parekh · Accepted Answer · 2010-12-10 07:50:37Z

5

You want to do it like so

   <g:form action="save" method="post" enctype="multipart/form-data" >  
   <input type='file' name='documentFile.1' />  
   <input type='file' name='documentFile.2' />  
   <input type='file' name='documentFile.3' />  
   </g:form>

In your controller

def files = []  
params.documentFile.each {  
  files.add(it.value)  
 }

answered Dec 10, 2010 at 7:50

Jinesh Parekh

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1 Comment

Cassio Landim Over a year ago

When I use the multiple attribute I can't get it to work. <input type="file" id="files" name="arquivos[]" multiple />

Suganthan Madhavan Pillai · Accepted Answer · 2014-03-25 08:57:38Z

3

You try with this one

request.fileNames.each {
   MultipartFile file = request.getFile(it)
   //File file = request.getFile(it)
   //do what you want
}

answered Mar 25, 2014 at 8:57

Suganthan Madhavan Pillai

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