Create an xml file with this content to tell Tomcat to use seperate folder (can be any folder, even out of tomcat root) as a root folder of your application.

Copy this file into TomcatDir/conf/Catalina/localhost

<?xml version='1.0' encoding='utf-8'?>
<Context docBase="/path/to/youProjectDir/web" 
  path="/youProjectURL" 
  reloadable="true" 
  workDir="/path/to/youProjectDir/work">
 
	<!-- Contents -->
 
</Context>