How to submit additional data along the file upload in dropzone.js?

Question

I have this form in my html code:

<form action="upload" id="upload-dropzone" class="dropzone">
    <input type="hidden" name="browser-path" id="browser-path" value="/">

    <div class="browser-buttons rrtl">
        <a id="browser-btn-upload">Upload</a>
    </div>

    <div class="lltr" id="browser-path-view"></div>
</form>

<script type="application/javascript">
    Dropzone.options.uploadDropzone = {
        clickable: "#browser-btn-upload",
    };
    loadBrowserContent();
</script>

As this document said, the hidden input field browser-path will automatically be submitted as POST data to server.

I have this code in my server side:

System.out.println(request.getParameter("browser-path"));

But this code always prints null to output!

How can I submit this hidden field to my server and how can I read it?

Edit:

Thanks to steeno, the form enctype is multipart/form-data so I have to read the fields from another way.

Community · Accepted Answer · 2017-05-23 12:29:26Z

1

I assume you use Java as backend language?

As mentioned in the following question: HttpServletRequest get JSON POST data the problem yould be the encoding of the post request. Maybe try to get the post data with getReader instead of getParameter.

edited May 23, 2017 at 12:29

CommunityBot

11 silver badge

answered Jun 30, 2014 at 13:27

steeno

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