Overview
The full form of JSP API stands for JavaServer Pages Application Programming Interface. JavaServer Pages (JSP) is a technology used for developing web pages that support dynamic content. This technology helps developers insert Java code in HTML pages by making use of special JSP tags that start with <% and end with %>
JSP API
JSP API includes two packages:
- javax.servlet.jsp
- javax.servlet.jsp.tagext
| JSP API Package | Package Description |
| javax.servlet.jsp | This package contains classes and interfaces for the core JSP functionality. It includes the JspPage and HttpJspPage interfaces for creating JSP pages.
It contains classes such as JspEngineInfo, JSPFactory, JspWriter, and PageContext. JSP Engine is responsible for interpreting and executing JSP pages. When a request is made for a JSP page, the JSP engine processes the request, executes the appropriate JSP, and generates a response. The JspWriter class is used for outputting content to the client. It is similar to PrintWriter in servlets but has additional functionality suited for JSPs. PageContext provides a context for JSP pages, giving them access to various objects like the request, response, session, and application. |
| javax.servlet.jsp.tagext | This package provides classes and interfaces for developing custom tags, which are user-defined tags that extend the standard set of HTML and JSP tags. The Tag, TagSupport, BodyTag, and BodyTagSupport classes are part of this package, along with interfaces for tag handlers and classes for tag attributes. |
JSP also requires two servlet packages, javax.servlet and javax.servlet.http, in addition to these two. Both packages include classes and interfaces for writing servlets.
JSP is used in conjunction with Java Servlets, where servlets handle the business logic, and JSPs are used for presenting the data to the user. This separation of concerns makes the web application development process more efficient and maintainable.
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Java Tutorials
Java Tutorial on this website:
https://www.testingdocs.com/java-tutorial/
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