Display processing data ... page when gettting data

I need to display a page which will display processing data please wait .... till i get the data from the database. How do i implement this in jsp ??

Instead of going directly to JSP/servlet performing time consuming task, go to an intermediate JSP that has this code...
<%
     String timeConsumingTask = "absolute URL to actual time consuming task";
%>
<META http-equiv="refresh" CONTENT="0; URL=<%= timeConsumingTask %>">
<br>please wait ....

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