Domain mapping for apache-tomcat-7.0.54 using virtual host
 1) Add below host to your server.xml file      for me it was on  /usr/local/apache-tomcat-7.0.54/conf/server.xml   path you might find it on location to which you have install your  apache-tomcat-7.0.54    prefix="localhost_access_log." suffix=".txt"  pattern="%h %l %u %t "%r" %s %b" />     2) Add your Domain name in  host name  field       2.1  appBase  is the path from were this host (a virtual server) is going to look for  .war  files       2.2 To have your application accessible by hitting @root of the domain  yourdomain.com  keep your war file name as " ROOT.war "    3) So when you start your server this will create a folder with your domain name  yourdomain.com  in below path     /usr/local/apache-tomcat-7.0.54/conf/Catalina/yourdomain.com   inside which you will find a ROOT folder which has your application