Special Edition Using Java™ Server Pages and Servlets

Chapter 14. Core Java Server Page Components

In this chapter

• The Built-In JSP Objects

• The JspWriter Class

• The PageContext Class

• The JspEngineInfo Class

The Built-In JSP Objects

Java Server Pages create a simplified layer on top of the servlet API. Aside from making it easy to create HTML output, the Java Server Pages API makes it easy to access common objects such as the request, response, and session. You access these objects through built-in object names.

The built-in object names and their associated implementation classes are shown in Table 14.1:

Table 14.1. Built-In JSP Objects and Their Implementation Classes

JSP Object	Implementation Class
request	HttpServletRequest
response	HttpServletResponse
out	JspWriter
session	HttpSession
application	ServletContext ...