ch2.servletController
Class Controller

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          ch2.servletController.Controller

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class Controller
extends javax.servlet.http.HttpServlet

A servlet controller contains all the Java code for an application. It is part of the MVC design pattern. MVC emphasizes the separation of the Java code from HTML.

See Also:

Serialized Form

Constructor Summary

Controller()

Method Summary

protected void

doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Handles the HTTP GET method.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Controller

public Controller()

Method Detail

doGet

protected void doGet(javax.servlet.http.HttpServletRequest request,
                     javax.servlet.http.HttpServletResponse response)
              throws javax.servlet.ServletException,
                     java.io.IOException

Handles the HTTP GET method. The controller has two basic functions.

1. Translate a button name into the address of a page
2. Forward the request and response objects to the page

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

request - Request information encapsulated in a Java object

response - Response information encapsulated in a Java object

Throws:

javax.servlet.ServletException

java.io.IOException