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POHow to retrieve multiple values from the select field using Commons File Upload?
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  1. POHow to retrieve multiple values from the select field using Commons File Upload?
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    copied!<p><strong>Update:</strong> The problem ended up being the Flash component itself. It wasn't properly compiling the multiple values from the element. I notified the developers and they implemented a workaround. Commons FileUpload does support multiple values per the accepted answer.</p> <p>I have a form, <em>enctype="multipart/form-data"</em>, with one </p> <pre><code>&lt;select name="XX" multiple="multiple"&gt; </code></pre> <p>and a Flash upload component which allows the user to select multiple files. When handling the POST using Apache Commons FileUpload, I detect the <em>select</em> field via </p> <pre><code>item.isFormField() == true </code></pre> <p>and continue to extract the details via</p> <pre><code>// Process a regular form field if (item.isFormField()) { String name = item.getFieldName(); String value = item.getString(); } </code></pre> <p>The problem I'm having is that <strong>item.getString();</strong> returns only the first selected value from the <em>select</em> field; no matter how many items I pick, I only get the first item.</p> <p>Likewise, when I use the standard servlet method for parameter extraction, ie.</p> <pre><code>final String[] values = request.getParameterValues("XX"); </code></pre> <p>values is empty, which I assume is because the form is encoded multipart.</p> <p>How can I retrieve these multiple selected values from my multi-select field?</p> <p>This (unanswered) question has also been <a href="http://forums.sun.com/thread.jspa?threadID=5395587" rel="nofollow noreferrer">posed on the Sun forums</a> by another author.</p>
 

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