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The core configuration file for the framework is the default (struts.xml) file and should reside on the classpath of the webapp (generally /WEB-INF/classes).

• The default file may include other configuration files as needed

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An Example configuration file

{snippet:id=xworkSample|lang=xml|javadoc=false|url=action2/apps/showcase/src/main/webapp/WEB-INF/classes/xwork-person.xml}

For more about configuration details, see Struts Configuration Elements

The Struts 2 Document Type Definition (DTD)

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• A struts-plugin.xml file can be placed in a JAR and automatically plugged into an application, so that modules can be self-contained and automatically configured.
  • In the case of Freemarker and Velocity modules, the templates can also be loaded from the classpath, so the entire module can be plugged in as a single JAR.

FAQ

Can we break up a large struts.xml file into smaller pieces?

Next: struts.xml Examples