JSP technology is somewhat similar to ASP technology. It inserts Java Scriptlet and JSP tags into traditional webpage HTML (a subset of standard generalized markup language) files (*. htm，*。 Html) to form a suffix (* .jsp). Web applications developed with JSP are cross-platform and can run under operating systems such as Linux.
JSP pages can be divided into the following parts: static data, JSP instructions, JSP script elements and variables, JSP actions and user-defined tags.
Extended data:
JSP technology is to write XML-like tags and scriptlets in Java programming language to encapsulate the processing logic of generating dynamic web pages. Web pages can also access the application logic of existing resources on the server through tags and scriptlets.
JSP separates the webpage logic from the display of webpage design, supports reusable component-based design, and makes the development of web-based applications fast and simple. JSP(JavaServer Pages) is a dynamic page technology, and its main purpose is to separate the presentation logic from Servlet.
References:
Baidu encyclopedia -JSP