Using JSP Hot deployment for application that need frequent update

Question

Is using JSP Hot deployment a solution to publish new or updated content to avoid restarting the Java EE server (cannot hot deploy jar)? I should not use JSP to code a lot of java, but do I have any other solution?

Answer 1

With Tomcat, you can use the Parallel Deployment method. You will be able to deploy your new version and keep older one running with every users that has a session on it.

It is really simple when you are using WAR files, I recommend a simple script to delete older versions after couple of days for exemple, just to keep only few running versions.

You can get more informations here : http://tomcat.apache.org/tomcat-7.0-doc/config/context.html#Parallel_deployment

Answer 2

Did you have a look at JRebel yet?