4.3. Deploying Web Applications in WAR Files
WAR (Web ARchive) files provide a convenient way of bundling Web apps in a single file. Having a single large file instead of many small files makes it easier to transfer the Web application from server to server.
A WAR file is really just a JAR file with a.war extension, and you use the normal jar command to create it. For example, to bundle the entire widgetStore Web app into a WAR file named widgetStore.war, you would just change directory to the widgetStore directory and execute the following command.
jar cvf widgetStore.war *
For simple WAR files, that’s it! However, in version 2.3 of the servlet API, you can create WAR files that designate that they need shared but nonstandard libraries installed ...
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