Question

we have a classic JSP + Servlets application and would like to show “Content is loading” sort of message when data in the page takes a while to load.

Is there an easy way to do this via JS?

Scenario:

• Page1 (a.jsp) -> select drop downs ->
  click search //data is sent back to
  server for db
• URL changes to (b.jsp), white page is shown, then data load after 30ish seconds

for those 30 seconds I want to show a spinner or some message.

adding ajax or jquery would require a design change which we can not do right now. Though the application already uses jQuery for other stuff but b.jsp is making the DB call from that page…

Answer 1

calling DB in jsp would be very much frowned upon. given the premise of the question, you could

//b.jsp

<div id="msg">data is loading...</div>

<% 
   out.flush();
   db.performanLengthJob(); 
%>

<script> $("msg").remove(); </script>

<p>Data is loaded!</p>