Java Server Page represents a technology that allows you to create a dynamic web page. Originally, JSP (along with servlets) in the early days of Java EE were the dominant approach to web development in Java. And although they have now given way to another technology - JSF, nevertheless JSP continue to be widely used.

In fact, Java Server Page or JSP is html code interspersed with the code Java. At the same time, pages JSP are not standard html pages. When a request comes to a particular page JSP, the server processes it, generates code html from it, and sends it to the client. As a result, after accessing the page JSP, the user sees a regular html page in his browser.

Like regular static web pages, JSP files must be placed on a web server that can be accessed by ordinary users using the http protocol, for example, by typing the desired address in the address bar of the browser.