JSP Declarations

A JSP declaration is always defined inside the class but outside the service (or any other) method. It’s that simple—declarations are for static and instance variables and methods. (In theory, yes, you could define other members including inner classes, but 99.9999% of the time you’ll use declarations for methods and variables.) The code below solves Pauline’s problem; now the counter keeps incrementing each time a client requests the page.

Variable Declaration

image with no caption

Method Declaration

image with no caption

Get Head First Servlets and JSP, 2nd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.