Web Components

When a web browser executes a Java EE application, it deploys server-side objects known as web components. JSP and corresponding servlets are two such web components.

Servlets

Small Java programs that dynamically process requests and construct responses from a web browser. Servlets run within web containers.

Java Server Pages (JSPs)

Text-based documents that contain static template data such as HTML, Scalable Vector Graphics (SVG), Wireless Markup Language (WML), or eXtensible Markup Language (XML). JSPs also contain elements such as servlets that construct dynamic content.