Are you sure what are you talking about?
On Java Servlet Specification, v2.2, 1.7 Changes Since Version 2.1, page 13, the last
paragraph:
Added the getAttribute, .....setAttribute.....The getValue, ...setValue...methods are
deprecated as part of this change.
"Reza U. Nabi" wrote:
> Its all fixed. Problem was ....there was no getAttribute method in Servlet 2.2 API.
>
> New version of Servlet (V 2.2) API replaced getAttribute() method with getValue()
> Also it replaced setAttribute() with putValue() method.
> Thanks guys,
>
> Reza
>
> Reza U. Nabi wrote:
>
> > Hi J-Gurus,
> > I was trying Shopping Cart application form PureJsp book.
> > When i compile ShopController.java, got the following error.
> > -----------------------------------------------------------------
> > classes /com/mednetrix/ShopController.java [27:1] No method found
> > mathcing getAttribute(String)
> > ShoppingCart cart = (ShoppingCart) session.getAttribute("cart");
> > classes /com/mednetrix/ShopController.java [27:1] Cannot parse
> > initializer
> > ShoppingCart cart = (ShoppingCart) session.getAttribute("cart");
> > 2 errors
> > ------------------------------------------------------
> >
> > I am using JWS 2.0 with Servlet 2.2 API running on Windows NT Server 4.0.
> >
> > Any point would be just great.......
> >
> > Thnaks,
> >
> > Reza Nabi
> > [EMAIL PROTECTED]
> >
> > ********************************************
> > BEGIN ShopController.java
> > ********************************************
> >
> > package com.mednetrix;
> > import javax.servlet.*;
> > import javax.servlet.http.*;
> > import java.io.*;
> > import java.util.*;
> >
> > import com.mednetrix.ShoppingCart;
> >
> > public class ShopController extends HttpServlet {
> >
> > //Initialize global variables
> > public void init(ServletConfig config)
> > throws ServletException {
> >
> > super.init(config);
> > }
> >
> > //Process the HTTP Post request
> > public void doPost(HttpServletRequest request,
> > HttpServletResponse response)
> > throws ServletException, IOException {
> >
> > String command = request.getParameter("command");
> > HttpSession session = request.getSession();
> > ShoppingCart cart = (ShoppingCart)session.getAttribute("cart");
> >
> > // Determine which command to perform
> > if ( command.equals("add") ) {
> >
> > // Get the item from the request
> > String id = request.getParameter("id");
> > if ( id != null ) {
> >
> > String desc = request.getParameter("desc");
> > Float price = new Float(request.getParameter("price"));
> >
> > // Add the selected item to the cart
> > cart.addItem(id, desc, price.floatValue(), 1);
> > }
> > }
> > // Redirect the response
> > // after adding an item to the cart.
> > response.sendRedirect("AddToShoppingCart.jsp");
> > }
> >
> > //Get Servlet information
> > public String getServletInfo() {
> >
> > return "ShopController Information";
> > }
> > }
> >
> > ********************************************
> > END ShopController.java
> > ********************************************
> >
> > ******************************
> > ShoppingCart.java
> > *******************************
> >
> > package com.mednetrix;
> > import java.lang.String;
> > import java.lang.Integer;
> > import java.lang.Float;
> > import java.util.Hashtable;
> > import java.util.Enumeration;
> > import java.io.*;
> >
> > public class ShoppingCart implements Serializable {
> >
> > protected Hashtable items = new Hashtable();
> >
> > public ShoppingCart() {
> >
> > }
> >
> > /**
> > * Add a new item to the shopping cart.
> > *
> > * attributes
> > * itemId - the unique key associted with the item
> > * desc - a text description of the item
> > * price - the unit price for this item
> > * quantity - number of this item to insert into the
> > * shopping cart
> > */
> > public void addItem(String itemId,
> > String desc,
> > float price,
> > int quantity) {
> >
> > String[] item = {itemId, desc, Float.toString(price),
> > Integer.toString(quantity)};
> >
> > if (items.containsKey(itemId)) {
> >
> > String[] tmpItem = (String[])items.get(itemId);
> > int tmpQuant = Integer.parseInt(tmpItem[3]);
> > quantity += tmpQuant;
> > tmpItem[3] = Integer.toString(quantity);
> > }
> > else {
> >
> > items.put(itemId, item);
> > }
> > }
> >
> > /**
> > * Remove an item from the shopping cart.
> > *
> > * attributes
> > * itemId - the unique key associated with the item to be
> > * removed
> > */
> > public void removeItem(String itemId) {
> >
> > if (items.containsKey(itemId)) {
> >
> > items.remove(itemId);
> > }
> > }
> >
> > /**
> > * Change the quantity of a specific item in the shopping cart.
> > * The item must have previously been added to perform this
> > * function.
> > *
> > * attributes
> > * itemId - unique key for the item to be updated
> > * quantity - the new quantity to be stored in the shopping
> > * cart
> > */
> > public void updateQuantity(String itemId, int quantity) {
> >
> > if (items.contains(itemId)) {
> >
> > String[] tmpItem = (String[])items.get(itemId);
> > tmpItem[3] = Integer.toString(quantity);
> > }
> > }
> >
> > /**
> > * Get an Enumeration to the list of items in the shopping cart.
> > */
> > public Enumeration getEnumeration() {
> >
> > return items.elements();
> > }
> >
> > /**
> > * Get the total cost of all of the items currently in the
> > * shopping cart.
> > */
> > public float getCost() {
> >
> > Enumeration enum = items.elements();
> > String[] tmpItem;
> > float totalCost = 0.00f;
> >
> > while (enum.hasMoreElements()) {
> >
> > tmpItem = (String[])enum.nextElement();
> > totalCost += (Integer.parseInt(tmpItem[3]) *
> > Float.parseFloat(tmpItem[2]));
> > }
> > return totalCost;
> > }
> >
> > /**
> > * Get the total number of items currently in the shopping cart.
> > */
> > public int getNumOfItems() {
> >
> > Enumeration enum = items.elements();
> > String[] tmpItem;
> > int numOfItems = 0;
> >
> > while (enum.hasMoreElements()) {
> >
> > tmpItem = (String[])enum.nextElement();
> > numOfItems += Integer.parseInt(tmpItem[3]);
> > }
> >
> > return numOfItems;
> > }
> > }
> >
> > ********************************************
> > END ShopingCart.java
> > ********************************************
> >
> > ===========================================================================
> > To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
> > Some relevant FAQs on JSP/Servlets can be found at:
> >
> > http://java.sun.com/products/jsp/faq.html
> > http://www.esperanto.org.nz/jsp/jspfaq.html
> > http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
> > http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
>
> --
> Reza U. Nabi
> Lead Programmer
> Mednetrix.com, Incorporated
>
> ===========================================================================
> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
> Some relevant FAQs on JSP/Servlets can be found at:
>
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
--
Best regards,
Yi Liu
Java Programmer
--
Invisible.Ink Corporation | http://www.inink.com
1400 Old Country Road Suite 408
Westbury, NY 11590
Phone: (516) 338 - 5283 Ext.148
Fax: (516) 876 - 8032
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Some relevant FAQs on JSP/Servlets can be found at:
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