What is Struts actions, Action mappings and Action servlet ?

Struts Action

• An instance of a subclass of an Action class
• runs the perform or execute method returns a forward
• performs tasks (Business logic)

Action mapping

• A configuration file entry which associates an action name with an action.
• can contain a reference to a form bean that the action can use
• can define a list of local forwards that is visible only to the specific action

Action Servlet

• Primary component of the Controller
• A servlet that is started by the servlet container of a Web server
• process a request that invokes an action
• receives a forward from the action and asks the servlet container to pass the request to the forward's URL.
• must be an instance of an ActionServlet class or its subclass.