Difference between Servlets and JSP in J2EE

Servlets and JSP are both important components of the J2EE architecture, but they serve different purposes:

Servlets:

Servlets are Java classes that are used to extend the capabilities of servers that host applications or to service requests from clients. Servlets are used to handle the backend logic of web applications and generate dynamic content.

JSP (JavaServer Pages):

JSP, on the other hand, is a technology that helps developers to create web pages that can be served to clients. JSP enables the separation of business logic from presentation logic by allowing the embedding of Java code in HTML pages.

Main Differences:

1. Servlets are Java classes that are compiled, loaded, and executed by the server, while JSP pages are text-based documents containing a mix of HTML and JSP elements that are compiled into servlets by the server before execution.
2. Servlets are used for backend processing and handling requests, while JSP is used for creating dynamic web content and presentation.
3. Servlets provide more control and flexibility in handling requests and responses programmatically, whereas JSP simplifies the design and maintenance of web pages by allowing the embedding of Java code within HTML.

Both servlets and JSP play complementary roles in developing web applications in the J2EE environment and are often used together to deliver dynamic and interactive web content.