In action mapping is the mapping of the action performed by the user or client on the application.
-We specify the action class for a specific user’s action. Like we provide the path or URL and different view based on user event.
-We can also define where control of the page deviate in case of validation error in the form.
-We can include ActionMapping in code like this:
<action-mappings>
<action path="/a" type=myclasse.A name="myForm">
<forward name="Login" path="/login.jsp"/>
<forward name="error" path="/error.jsp"/>
</action-mappings>