根据索引jsp中表单中的按钮按下，尝试从servlet移动到不同的jsp

<form action="servletName" method="post">
  <input type="submit" name="buttonIndex" value="0">
  <input type="submit" name="buttonIndex" value="1">
  <input type="submit" name="buttonIndex" value="2">
</form>

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  String buttonIndex = request.getParameter("buttonIndex");

  if (buttonIndex.equals("0")) {
    request.getRequestDispatcher("page1.jsp").forward(request, response);
  } else if (buttonIndex.equals("1")) {
    request.getRequestDispatcher("page2.jsp").forward(request, response);
  } else if (buttonIndex.equals("2")) {
    request.getRequestDispatcher("page3.jsp").forward(request, response);
  }
}