Q 1. What is MVC?
Model-View-Controller (MVC) is a
design pattern put together to help control change. MVC decouples interface
from business logic and data.
Model: The model contains the core of the application's functionality. The model enca psulates the state of the application. Sometimes the only functionality it contains is state. It knows nothing about the view or controller.
View: The view provides the presentation of the model. It is the look of the application. The view can access the model getters, but it has no knowledge of the setters. In addition, it knows nothing about the controller. The view should be notified when changes to the model occur.
Controller: The controller reacts to the user input. It creates and sets the model.
Model: The model contains the core of the application's functionality. The model enca psulates the state of the application. Sometimes the only functionality it contains is state. It knows nothing about the view or controller.
View: The view provides the presentation of the model. It is the look of the application. The view can access the model getters, but it has no knowledge of the setters. In addition, it knows nothing about the controller. The view should be notified when changes to the model occur.
Controller: The controller reacts to the user input. It creates and sets the model.
Q 2. What is a framework?
Framework is made up of the set of
classes which allow us to use a library in a best possible way for a specific
requirement.
3. What is Struts framework?
Struts framework is an open-source
framework for developing the web applications in Java EE, based on MVC-2
architecture. It uses and extends the Java Servlet API. Struts is robust
architecture and can be used for the development of application
of any size. Struts framework makes it much easier to design scalable, reliable Web applications with Java. Struts provides its own Controller component and integrates with other technologies to provide the Model and the View. For the Model, Struts can interact with standard data access technologies, like JDBC and EJB, as well as most any third-party packages, like Hibernate, iBATIS, or Object Relational Bridge. For the View, Struts works well with JavaServer Pages, including JSTL and JSF, as well as Velocity Templates, XSLT, and other presentation systems.
of any size. Struts framework makes it much easier to design scalable, reliable Web applications with Java. Struts provides its own Controller component and integrates with other technologies to provide the Model and the View. For the Model, Struts can interact with standard data access technologies, like JDBC and EJB, as well as most any third-party packages, like Hibernate, iBATIS, or Object Relational Bridge. For the View, Struts works well with JavaServer Pages, including JSTL and JSF, as well as Velocity Templates, XSLT, and other presentation systems.
Q 4. What is Jakarta Struts Framework?
Jakarta Struts is open source
implementation of MVC (Model-View-Controller) pattern for the development of
web based applications. Jakarta Struts is robust architecture and can be used
for the development of application of any size. Struts framework makes it much
easier to design scalable, reliable Web applications with Java.
Q 5. What is ActionServlet?
The class
org.apache.struts.action.ActionServlet is the called the ActionServlet. In the
the Jakarta Struts Framework this class plays the role of controller. All the
requests to the server
goes through the controller. Controller is responsible for handling all the requests.
goes through the controller. Controller is responsible for handling all the requests.
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