Refresh the content of a page

Question

I' am developing a web monitoring console. Therefore I must be able to refresh the content of a page(table) and requery the underlying sql. Must I use a timer or are the other methods and alternatives.

Answer 1

I am creating a project in Java Studio Creator 2. It starts out with a login screen and depending on the user rights, it lists(in a listbox) the possible pages the user has access to. From here the user selects the page they want to go to and takes them there. Now the problem that I am having is that this final page they are taken too needs to be refreshed every 5 seconds.
I tried to add <meta http-equiv="refresh" content="5"/> in my <ui:head, but it just returned an error. After a little tweaking, I came up with <ui:meta httpEquiv="refresh" content="5"/>.
The problem that I'm now having is that the page will wait 5 sec, and then reloads the previous page with the listbox. What am I doing wrong?
The JSP head code that I have is as follows:
<ui:head binding="#{Page3.head1}" id="head1">
<ui:link binding="#{Page3.link1}" id="link1" url="/resources/stylesheet.css"/>
<ui:meta httpEquiv="refresh" content="5"/>
</ui:head>
Now another question that I have, is how can I get a different page to start refreshing every 5 seconds after pressing a button and have it stop after pressing a second button.
Thanks in advance,
Raimie