What is the use of Action mapping in struts?
An action mapping is a configuration file entry that usually contains a reference to an Action class. This entry can contain a reference to a form bean that the action can use, and can also define local forwards and exceptions that are visible only to this action.
How do you create an action class in struts?
Create Multiple Actions struts2; import com. opensymphony. xwork2. ActionSupport; class MyAction extends ActionSupport { public static String GOOD = SUCCESS; public static String BAD = ERROR; } public class HelloWorld extends ActionSupport { public String execute() { if (“SECRET”.
What are the classes used in struts?
Core classes of the Struts Framework
- ActionServlet.
- ActionForm.
- Action.
- Action Mapping.
- ActionForward.
What is forward tag in Struts config XML?
name— The name of the forward to be performed. path— The full path to another action, local JSP page, or remote page.
What is struts ActionMapping?
An ActionMapping represents the information that the controller, RequestProcessor , knows about the mapping of a particular request to an instance of a particular Action class. Since Struts 1.1 this class extends ActionConfig .
How do Struts work?
Struts is an open source framework that extends the Java Servlet API and employs a Model, View, Controller (MVC) architecture. It enables you to create maintainable, extensible, and flexible web applications based on standard technologies, such as JSP pages, JavaBeans, resource bundles, and XML.
What is the action mapping in Apache Struts?
The Action mapping above also specified that if the execute method of class HelloWorldAction returns success then the view HelloWorld.jsp will be returned to the browser. This tutorial will introduce you to the basics of writing the controller logic in the Action class. Action classes act as the controller in the MVC pattern.
How to code a Struts 2 action in Java?
Coding a Struts 2 Action involves several parts: In the previous tutorials we covered how to configure Struts to map a URL such as hello.action to an Action class such as HelloWorldAction (specifically the execute method).
How is a relationship made in struts action config?
The relationship is made by the name attribute in the action config. So if you use name=”testForm” then form bean with the name testForm will be injected to the action’s execute method. Your request might be handled if the relative url match the path value in action config and you have mapped the action servlet to *.do in servlet mapping pattern.
How is the relative URL handled in struts?
Your request might be handled if the relative url match the path value in action config and you have mapped the action servlet to *.do in servlet mapping pattern. The type attribute of the is used to enter FQCN of the bean class that would probably extend the ActionForm.