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Jakarta Server Pages (JSP)

Posted: June 6, 2023 | by Michael Bright

Jakarta Server Pages (JSP) is a technology that allows developers to create dynamic web pages using Java. It is a part of the Java Enterprise Edition (Java EE) platform, which provides a set of standardized specifications for building enterprise applications.

JSP combines HTML (Hypertext Markup Language) with embedded Java code to generate dynamic content that can be displayed in a web browser. It enables the separation of presentation logic (HTML) from business logic (Java code), promoting a more organized and maintainable approach to web development.

Here are some key aspects and features of Jakarta Server Pages:

  1. Dynamic Web Content: JSP enables the creation of dynamic web pages by allowing developers to embed Java code directly within HTML templates. This allows the generation of dynamic content, such as database-driven content, user-specific information, and server-side processing.
  2. Easy Integration with Java: JSP seamlessly integrates with the Java programming language, allowing developers to leverage the full power of Java within their web applications. They can use Java classes, methods, and libraries to perform complex operations, interact with databases, access external APIs, and more.
  3. Tag Libraries: JSP provides tag libraries that extend the capabilities of HTML and provide additional functionality for common web development tasks. These tag libraries allow developers to include reusable components, handle form processing, manage session state, and perform other tasks without writing extensive Java code.
  4. Expression Language (EL): JSP includes an Expression Language that simplifies the embedding of Java expressions within HTML templates. The EL provides a concise syntax for accessing and manipulating data stored in Java objects, making the code more readable and maintainable.
  5. JSP Standard Tag Library (JSTL): JSTL is a standard tag library that provides a collection of tags for common web development tasks, such as conditional rendering, looping, formatting, and internationalization. It simplifies the development process by reducing the need for custom Java code.
  6. Model-View-Controller (MVC) Architecture: JSP can be used as a View component in the MVC architectural pattern. In this pattern, the business logic resides in Java classes (Models), and JSP is responsible for rendering the data to the user (View), separating the presentation from the underlying logic.
  7. Deployment and Portability: JSP files are compiled into servlets by the web container at runtime, which ensures efficient execution and performance. JSP-based applications can be deployed on any Java EE-compliant web server, providing portability across different environments.

JSP is widely used in enterprise web development for building dynamic web pages and web applications. It provides a familiar syntax for Java developers and offers the flexibility and power of the Java language within the web development context. However, it’s worth noting that since Java EE 8, JSP has been moved to the Jakarta EE project under the name Jakarta Server Pages (JSP).

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