public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
if (req.getParameter("create") != null) {
batchCreateUsers(req.getParameter("prefix"), req.getParameter("suffix"), Integer.parseInt(req.getParameter("amount")), resp.getWriter());
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
if (req.getParameter("create") != null) {
batchCreateUsers(req.getParameter("prefix"), req.getParameter("suffix"), Integer.parseInt(req.getParameter("amount")), resp.getWriter());