The Life Cycle of a Servlet
The life cycle of a Java servlet is a very simple object-oriented design. A servlet is constructed and initialized. It then services zero or more requests until the service that it extends shuts down. At this point the servlet is destroyed and garbage collected. This design explains why servlets are such a good replacement for CGI. The servlet is loaded only once and it stays resident in memory while servicing requests.
Figure 2.4. An HttpServlet request
The interface that declares this framework is the javax.servlet.Servlet interface. The Servlet interface defines the life cycle methods. These methods are init(), ...
Get Pure Java Server Pages™ now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
