How to configure a page to display while server is in planned maintenance in Jboss?

问题

How to configure in Jboss, when server is in planned maintenance(not completely down), to display an error page? thanks.

回答1:

Two possibilities:

1. Inside JBoss: during the time your application, say myapp.war, is down, you can deploy another myapp.war with just a single HTML/JSP file, displaying that the server is under maintenance. See Hello, World! Web App as an example for a simple web app.
2. If your JBoss runs behind another webserver, such as Apache, you can enable a rewrite during maintenance:

   RewriteEngine on
   RewriteRule ^.*$ http://yourdoman.com/maintenance-info.html [L,R]
   

We use the second option because sometimes we also shutdown the JBoss instance.

来源：https://stackoverflow.com/questions/4320791/how-to-configure-a-page-to-display-while-server-is-in-planned-maintenance-in-jbo