Web Archives file (WAR FILE)

A WAR file means Web application Archive file i.e all the component and file are used to make web page to make
together into a JAR file used to distribute
as a collection of jsp, servlets and Java class,it XML files, tag libraries, static Web resources are stored. etc . to take together into a
single unit for used to build a Web application.one major disadvantage to make war file they are not update at run time .
that why we move to more advanced technology to create file i.e EAR FILE