Another example of multi upload and search container using JavaScript SDK and Java SDK Liferay 6.2

container-upload.jspf

<aui:script use="liferay-upload">
	var uploader = new Liferay.Upload(
		{
			boundingBox: '#<portlet:namespace />fileUpload',

			<%
			DecimalFormatSymbols decimalFormatSymbols = DecimalFormatSymbols.getInstance(locale);
			%>

			decimalSeparator: '<%= decimalFormatSymbols.getDecimalSeparator() %>',
			fallback: '#<portlet:namespace />fallback',
			fileDescription: '<%= StringUtil.merge(PrefsPropsUtil.getStringArray(PropsKeys.DL_FILE_EXTENSIONS, StringPool.COMMA)) %>',
			maxFileSize: '<%= PrefsPropsUtil.getLong(PropsKeys.DL_FILE_MAX_SIZE) %> ',
			namespace: '<portlet:namespace />',
			removeOnComplete: true,
			'strings.uploadsCompleteText': '<%= LanguageUtil.get(request, "all-files-are-saved") %>',
			uploadFile: '<liferay-portlet:actionURL doAsUserId="<%= user.getUserId() %>" name="/wiki/edit_page_attachment"><portlet:param name="<%= Constants.CMD %>" value="<%= Constants.ADD %>" /><portlet:param name="nodeId" value="<%= String.valueOf(node.getNodeId()) %>" /><portlet:param name="title" value="<%= wikiPage.getTitle() %>" /></liferay-portlet:actionURL>&ticketKey=<%= ticket.getKey() %><liferay-ui:input-permissions-params modelName="<%= WikiPage.class.getName() %>" />'
		}
	);

	uploader.on(
		'uploadComplete',
		function(event) {
			var searchContainer = Liferay.SearchContainer.get('<portlet:namespace />pageAttachments');

			if (searchContainer) {
				var rowColumns = [];

				var deleteURL = Liferay.PortletURL.createURL('<%= deleteURL.toString() %>');

				deleteURL.setParameter('fileName', event.name);

				rowColumns.push(event.name);
				rowColumns.push(uploader.formatStorage(event.size));
				rowColumns.push('<a href="' + deleteURL + '"><%= TrashUtil.isTrashEnabled(scopeGroupId) ? UnicodeLanguageUtil.get(resourceBundle, "move-to-the-recycle-bin") : UnicodeFormatter.toString(removeAttachmentIcon) %></a>');

				searchContainer.addRow(rowColumns, event.id);

				searchContainer.updateDataStore();
			}
		}
	)
</aui:script>