The following article describes the Difference Between JSP and JSF.

JSP (JavaServer Pages) and JSF (JavaServer Faces) are both Java-based web technologies that are used to develop dynamic web applications. The following list shows the main differences between the above two technologies.

  • Architecture. Actually, JSP is a view technology that we use to generate HTML pages with dynamic content. It is based on the model-view-controller (MVC) architecture, where the JSP page serves as the view component. On the other hand, JSF is a component-based web framework that provides a set of reusable UI components, such as buttons, text fields, and data tables. It is based on the model-view-controller (MVC) design pattern, where the JSF component tree serves as the view component.
  • Tag libraries. Basically, JSP uses JSTL (JSP Standard Tag Library) and EL (Expression Language) to define custom tags and expressions. JSF, on the other hand, provides a rich set of pre-built UI components that can be easily customized and extended.
  • Event handling. JSP does not have built-in event handling capabilities. It relies on JavaScript or other client-side technologies to handle user interactions. JSF, on the other hand, provides a built-in event model that allows developers to handle user events on the server side.
  • AJAX support. JSP provides limited support for AJAX (Asynchronous JavaScript and XML) by using JavaScript and XMLHTTPRequest objects. JSF, on the other hand, provides built-in support for AJAX through its rich set of Ajax-enabled UI components.
  • Validation. JSP does not have built-in validation capabilities. It relies on JavaScript or other client-side technologies to perform validation. JSF, on the other hand, provides a built-in validation framework that can validate user input on the server side.

In summary, JSP is a view technology that generates HTML pages with dynamic content, while JSF is a component-based web framework that provides a set of reusable UI components. JSP uses JSTL and EL for custom tags and expressions, while JSF provides a rich set of pre-built UI components. JSF also provides built-in event handling, AJAX support, and validation capabilities, which are not available in JSP.

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