What is JSP and is it still relevant today?

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JavaServer Pages (JSP) is a server-side technology used for building dynamic web pages using Java. Introduced by Sun Microsystems in the late 1990s, JSP allows developers to embed Java code directly into HTML using special JSP tags. It is part of the Java EE (Enterprise Edition) platform and is typically used in conjunction with servlets.

How JSP Works:

When a JSP file is requested, the server compiles it into a servlet (a Java class), which is then executed to generate dynamic content—usually HTML—that is sent to the client’s browser.

Is JSP Still Relevant Today?

JSP was popular in the early 2000s, especially in enterprise environments. However, its relevance has declined in modern web development due to several reasons:

  • Outdated Development Model: Embedding Java code directly in HTML makes maintenance difficult and violates the separation of concerns principle.

  • Modern Alternatives: Frameworks like Spring Boot, JSF, Thymeleaf, and frontend frameworks (React, Angular, Vue) have largely replaced JSP in modern Java web apps.

  • Better Tools and Architectures: REST APIs with frontend-backend separation are now standard, moving away from monolithic JSP-based architectures.

Still in Use?

Yes, JSP is still used in legacy systems and some enterprise applications. However, for new projects, it's generally not recommended. Developers today prefer cleaner, more modular approaches with better tooling, performance, and maintainability.

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