I just wanted to know whether is it necessary to redeploy a war file when we make some changes in the expanded web application.
I made some changes in the jsp page and it got reflected. But if I make a change in a Java class, compile it and replace it with the old one, the old one still persists. Restarting the web application, even the server does not affect.
I did not try to redeploy the war file but I suppose that is the only solution.
That depends on the server settings. There is usually a setting that allows JSP changes to be picked up automatically (though it's generally turned off in production). Same thing for classes, although reloading a class means to restart the webapp. Restarting the web app should pick up the altered class, unless all that does is to re-unpack the war file. All this is server-specific, so have a look at the documentation.
Joined: Oct 10, 2005
I am using Websphere 5.0. The JSP changes are picked up automatically. Changes made in class files are not picked up though.
In Tomcat, we used to specify the attribute, reloadable="true" to do the same. In WAS, what needs to be done. I am stuck because of this.