JavaServer Pages Pocket Reference

Implicit Objects

When you use scripting elements in a JSP page, you always have access to a number of objects (listed in Table 1-12) that the web container makes available. These objects are instances of classes defined by the servlet and JSP specifications. Each class is described in detail in this section, following the table.

Table 1-12. Implicit JSP objects

Variable name	Java type
application	javax.servlet.ServletContext
config	javax.servlet.ServletConfig
exception	java.lang.Throwable
out	javax.servlet.jsp.JspWriter
page	java.lang.Object
pageContext	javax.servlet.jsp.PageContext
request	javax.servlet.http.HttpServletRequest
response	javax.servlet.http.HttpServletResponse
session	javax.servlet.http.HttpSession