File upload portlet

[Fabio A Miranda, modificado hace 13 años.]

Hello,

I am programming a simple portlet that processes the upload of a file via a web browser.

However, the InputStream.read(request.getPortletInputStream()) always returns -1 but ContentLegth is > 0.

Can anyone provide a simple way to processes a file upload using Liferay framework ?

Thanks in advance,

fabio.

[Jim Klo, modificado hace 13 años.]

First make sure you're posting the form with enctype="multipart/form-data".

<portlet:actionurl var="submitFileAction" name="submitFile">
</portlet:actionurl>

<form action="<%= submitFileAction %>" method="post" [b]enctype="multipart/form-data" [ b]>
    <input type="file" id="file" name="<portlet:namespace />file" size="47" value="<%= HtmlUtil.escape(file,1) %>">
    <input type="submit" value="Submit">
</form>

Then assuming you're using an MVCPortlet:

public void submitFile(ActionRequest actionRequest, ActionResponse actionResponse) throws SystemException, PortalException {

	UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(actionRequest);
			
	if (uploadRequest != null) {
				
		String submissionFileName = uploadRequest.getFileName("file");
		File submissionFile = uploadRequest.getFile("file");

	}
}