Professional Java Server Programming J2EE Edition

Professional Java Server Programming J2EE Edition

Chapter 22 : Development and Deployment Roles

Robert David CowanCS486 April 9, 2001

Model-View-Controller Design

Model-View-Controller Design

Models

ViewsView1.jsp View2.jsp View3.jsp

ControllerMain.jsp

BrowserClient

Manufacturing App DesignManufacturing App Design

ModelsManageOrders Manufacture

ModelManager (proxy)

Viewscreateproduct.jsp createrouting.jsp

….and others

ControllerRequestProcessor

Main.jsp

BrowserClient

Choices.jspChoices.jsp

Choose one of the following actions:•Create a sample product •Place a sample order •Manage orders •Manufacture a product for an order

Code for Choices.jsp

Code for Choices.jsp

Choices<html><head><title>Wrox Sample Code / J2EE</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head>

<body bgcolor="#FFFFFF"><p>Choose one of the following actions:</p><ul> <li><a href="createproduct">Create a sample product</a></li> <li><a href="placeorder">Place a sample order</a></li> <li><a href="manageorders?ordertype=openorders">Manage orders</a></li> <li><a href="manufacturechoose">Manufacture a product for an order</a></li></ul><p> </p><p> </p></body></html>

Code for Main.jspCode for Main.jsp<%-- % The entry point for the manufacturing application --%> <jsp:useBean id="modelManager" class="ModelManager" scope="session" > <% modelManager.init(config.getServletContext(), session); %> </jsp:useBean>

<jsp:useBean id="rp" class="RequestProcessor" scope="session" > <% rp.init(config.getServletContext(), session); %> </jsp:useBean>

Model and request processor @ session scope.

Code for Main.jsp (cont.) Code for Main.jsp (cont.)

Forward request to RequestProcessor.java (class) = update model and return next view. <%String targetView = rp.processRequest(request);Dispatch the request to the appropriate view. getServletConfig().getServletContext(). getRequestDispatcher(targetView).forward(request, response);%>

Code for RequestProcessor.java

class

Code for RequestProcessor.java

classimport java.text.DateFormat;import java.util.Date;import javax.servlet.ServletContext;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import factory.manage_orders.NoSuchOrderException;import factory.manage_orders.NoSuchProductException;import factory.manage_orders.DuplicateOrderException;import factory.manufacture.BadStatusException;import factory.order.OrderNotCancelableException;

public class RequestProcessor { private ModelManager mm; private HttpSession session; private ServletContext context; private String stackURL;

private DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.SHORT);

Code for RequestProcessor.java (cont.)


public void init(ServletContext context, HttpSession session) { this.session = session; this.context = context; mm = (ModelManager)session.getAttribute("modelManager"); }

public String processRequest(HttpServletRequest req) { String selectedURL = req.getPathInfo();

if ((selectedURL == null) || selectedURL.equals( ScreenNames.CHOICES )) { return ScreenNames.CHOICES_URL;

} else if (selectedURL.equals( ScreenNames.CHOOSE_FOR_MANUFACTURE )) { String cellName = mm.getCurrentCell(); if (cellName == null) { // requires "log on" stackURL = ScreenNames.CHOOSE_FOR_MANUFACTURE_URL; return ScreenNames.CHOOSE_CELL_URL; }

Copy model proxy

Processing request


Code for RequestProcessor.java (cont.) } else if (selectedURL.equals( ScreenNames.CELL_CHOSEN )) {

String cellName = req.getParameter( ScreenNames.CELL_PARAM ); mm.setCurrentCell( cellName ); return stackURL; } else if (selectedURL.equals( ScreenNames.PRODUCT_CREATED )) { String prodID = req.getParameter( ScreenNames.PRODUCT_ID_PARAM ); String prodName = req.getParameter( ScreenNames.PRODUCT_NAME_PARAM ); mm.createProduct( prodID, prodName ); return ScreenNames.CREATE_ROUTING_URL;

} else if (selectedURL.equals( ScreenNames.CREATE_ROUTING )) { return ScreenNames.CREATE_ROUTING_URL;

} else if (selectedURL.equals( ScreenNames.ROUTING_CREATED )) { String sequence = req.getParameter( ScreenNames.ROUTING_SEQUENCE_PARAM ); String action = req.getParameter( ScreenNames.ROUTING_ACTION_STEP_PARAM ); mm.addRouting( Integer.parseInt(sequence), action ); return ScreenNames.CREATE_ROUTING_URL;



} else if (selectedURL.equals( ScreenNames.CANCEL_ORDER )) { String salesDivision = req.getParameter( ScreenNames.SALES_DIVISION_PARAM ); String orderNumber = req.getParameter( ScreenNames.ORDER_NUMBER_PARAM ); String orderType = (req.getParameter(ScreenNames.ORDER_TYPE_PARAM)); try { System.out.println("Request Processor cancel order");

mm.cancelOrder( Integer.parseInt(salesDivision), Integer.parseInt(orderNumber) ); prepareManageOrdersRequest( orderType, req ); return ScreenNames.MANAGE_ORDERS_URL; } catch (OrderNotCancelableException once) { req.setAttribute( ScreenNames.MESSAGE_ATTRIB, "This order is not cancelable." ); return ScreenNames.MESSAGE_URL; } catch (NoSuchOrderException nsoe) { req.setAttribute( ScreenNames.MESSAGE_ATTRIB, "This order does not exist." ); return ScreenNames.MESSAGE_URL; }


Code for RequestProcessor.java (cont.)} else if (selectedURL.equals( ScreenNames.MANAGE_ORDERS )) {

String orderType = (req.getParameter(ScreenNames.ORDER_TYPE_PARAM)); prepareManageOrdersRequest( orderType, req ); return ScreenNames.MANAGE_ORDERS_URL;

} else if (selectedURL.equals( ScreenNames.PLACE_ORDER )) { return ScreenNames.PLACE_ORDER_URL;

} else if (selectedURL.equals( ScreenNames.ORDER_PLACED )) { try { String salesDiv = req.getParameter( ScreenNames.ORDER_SALES_DIV_PARAM ); String orderNum = req.getParameter( ScreenNames.ORDER_NUM_PARAM ); String productID = req.getParameter( ScreenNames.ORDER_PROD_PARAM ); String dateDueString = req.getParameter( ScreenNames.ORDER_DUE_DATE_PARAM );

Date dateDue = dateFormat.parse( dateDueString );

mm.placeOrder(Integer.parseInt(salesDiv), Integer.parseInt(orderNum), productID, dateDue );



req.setAttribute(ScreenNames.MESSAGE_ATTRIB, "Thank you for placing this order." ); } catch (NoSuchProductException nspe) { req.setAttribute( ScreenNames.MESSAGE_ATTRIB, "There is no such product." ); } catch (DuplicateOrderException doe) { req.setAttribute( ScreenNames.MESSAGE_ATTRIB, "There is already an order in that sales division with that number." ); } catch (java.text.ParseException pe) { req.setAttribute( ScreenNames.MESSAGE_ATTRIB, "That is not a valid date." ); } return ScreenNames.MESSAGE_URL;

} else if (selectedURL.equals( ScreenNames.ROUTE_FOR_MANUFACTURE )) { if (mm.hasNextRouting()) return ScreenNames.ROUTE_FOR_MANUFACTURE_URL; else return ScreenNames.SHIP_URL;

} else if (selectedURL.equals( ScreenNames.SHIP_PRODUCT )) { String loadingDock = req.getParameter(



String loadingDock = req.getParameter( ScreenNames.SHIP_LOADING_DOCK_PARAM ); String carrier = req.getParameter(ScreenNames.SHIP_METHOD_PARAM ); mm.shipProduct( carrier, Integer.parseInt(loadingDock) ); return ScreenNames.CHOICES_URL; } else { return ScreenNames.CHOICES_URL; } }


prepareManageOrdersRequest



private void prepareManageOrdersRequest(String orderType, HttpServletRequest req) {

if (orderType.equals(ScreenNames.ORDER_TYPE_OVERDUE)) {

req.setAttribute(ScreenNames.ORDER_URL_ATTRIB, ScreenNames.ORDER_TYPE_OVERDUE); req.setAttribute(ScreenNames.ORDER_ALT_URL_ATTRIB, ScreenNames.ORDER_TYPE_OPEN); req.setAttribute(ScreenNames.ORDER_ALT_VIEW_ATTRIB, ScreenNames.ORDER_TYPE_OPEN_TEXT); req.setAttribute(ScreenNames.ORDER_VIEW_ATTRIB, ScreenNames.ORDER_TYPE_OVERDUE_TEXT);

Helper method to abstract out some functionality used twice





} else // orderType.equals(ScreenNames.ORDER_TYPE_OPEN) ) {

req.setAttribute(ScreenNames.ORDER_URL_ATTRIB, ScreenNames.ORDER_TYPE_OPEN); req.setAttribute(ScreenNames.ORDER_ALT_URL_ATTRIB, ScreenNames.ORDER_TYPE_OVERDUE); req.setAttribute(ScreenNames.ORDER_ALT_VIEW_ATTRIB, ScreenNames.ORDER_TYPE_OVERDUE_TEXT); req.setAttribute(ScreenNames.ORDER_VIEW_ATTRIB, ScreenNames.ORDER_TYPE_OPEN_TEXT); } }}

Code for ScreenNames.javaclass

Code for ScreenNames.javaclass

public interface ScreenNames { // paths public static final String CHOICES = "/choices"; public static final String CREATE_PRODUCT = "/createproduct"; public static final String CREATE_ROUTING = "/createrouting"; public static final String MANAGE_ORDERS = "/manageorders"; public static final String CHOOSE_FOR_MANUFACTURE = "/manufacturechoose"; public static final String ROUTE_FOR_MANUFACTURE = "/manufactureroute"; public static final String PLACE_ORDER = "/placeorder"; public static final String ORDER_PLACED = "/order_placed"; public static final String PRODUCT_CREATED = "/product_created"; public static final String ROUTING_CREATED = "/routing_created"; public static final String ORDER_CHOSEN = "/order_chosen"; public static final String CANCEL_ORDER = "/cancelorder"; public static final String CELL_CHOSEN = "/cell_chosen"; public static final String SHIP_PRODUCT = "/ship_product";

Constants defined

Code for ScreenNames.java (cont.)

Code for ScreenNames.java (cont.)

// jsps public static final String CHOICES_URL = "/choices.jsp"; public static final String CREATE_PRODUCT_URL = "/createproduct.jsp"; public static final String CREATE_ROUTING_URL = "/createrouting.jsp"; public static final String MANAGE_ORDERS_URL = "/manageorders.jsp"; public static final String CHOOSE_FOR_MANUFACTURE_URL = "/manufacturechoose.jsp"; public static final String ROUTE_FOR_MANUFACTURE_URL = "/manufactureroute.jsp"; public static final String PLACE_ORDER_URL = "/placeorder.jsp"; public static final String MESSAGE_URL = "/message.jsp"; public static final String CHOOSE_CELL_URL = "/cellid.jsp"; public static final String SHIP_URL = "/ship.jsp";

Code for ScreenNames.java(cont.)


// parameters public static final String ORDER_TYPE_PARAM = "ordertype"; public static final String ORDER_VIEW_ATTRIB = "order_view"; public static final String ORDER_ALT_VIEW_ATTRIB = "order_alt_view"; public static final String ORDER_ALT_URL_ATTRIB = "order_alt_url"; public static final String ORDER_URL_ATTRIB = "order_url"; public static final String ORDER_TYPE_OPEN = "openorders"; public static final String ORDER_TYPE_OVERDUE = "overdueorders"; public static final String ORDER_TYPE_OPEN_TEXT = "open orders"; public static final String ORDER_TYPE_OVERDUE_TEXT = "overdue orders";

public static final String SALES_DIVISION_PARAM = "salesdivision"; public static final String ORDER_NUMBER_PARAM = "ordernumber";

public static final String MESSAGE_ATTRIB = "message";



public static final String PRODUCT_ID_PARAM = "product_id"; public static final String PRODUCT_NAME_PARAM = "product_name";

public static final String ROUTING_SEQUENCE_PARAM = "sequence"; public static final String ROUTING_ACTION_STEP_PARAM = "routing";

public static final String ORDER_SALES_DIV_PARAM = "sales_div"; public static final String ORDER_NUM_PARAM = "order_num"; public static final String ORDER_PROD_PARAM = "prod"; public static final String ORDER_DUE_DATE_PARAM = "due_date";

public static final String CELL_PARAM = "cell";

public static final String SHIP_METHOD_PARAM = "shipping_company"; public static final String SHIP_LOADING_DOCK_PARAM = "loading_dock";

}

Code for ModelManager.javaclass

Code for ModelManager.javaclass import javax.ejb.EJBException;

import javax.naming.InitialContext;import javax.naming.NamingException;import javax.rmi.PortableRemoteObject;import javax.servlet.http.HttpSession;import javax.servlet.ServletContext;

import java.util.Date;import java.util.Iterator;import java.util.LinkedList;

import factory.manage_orders.DuplicateOrderException;import factory.manage_orders.OpenOrderView;import factory.manage_orders.OverdueOrderView;import factory.manage_orders.ManageOrders;import factory.manage_orders.ManageOrdersHome;import factory.manage_orders.NoSuchOrderException;import factory.manage_orders.NoSuchProductException;import factory.manufacture.BadStatusException;import factory.manufacture.Manufacture;import factory.manufacture.ManufactureHome;

import factory.order.OrderNotCancelableException;

Web-tier proxy for EJB-tier

Code for ModelManager.java (cont.)


public class ModelManager { private ServletContext context; private HttpSession session; Maintain references to session bean façade. Save persistent Manufacture (stateful) ManageOrder could be reaquired each time for load balancing.

private ManageOrders manageOrders; private Manufacture manufacture;

private String currentCellID; private String currentProductID;

public void init(ServletContext context, HttpSession session) { this.session = session; this.context = context;

manageOrders = getManageOrdersEJB(); }



public void createProduct( String productID, String productName ) { try { manageOrders.createProduct( productID, productName ); currentProductID = productID; } catch (java.rmi.RemoteException re ) { throw new EJBException( re ); } } public String getCurrentCell() { return currentCellID; }

public void setCurrentCell( String currentCell ) { currentCellID = currentCell; }

public String getCurrentProductID() { return currentProductID; }



public void addRouting( int sequence, String action ) { try { manageOrders.addRoutingInstruction( currentProductID, sequence, action ); } catch (java.rmi.RemoteException re ) { throw new EJBException( re ); } } public void placeOrder(int salesDivision, int orderNumber, String product, Date dateDue ) throws NoSuchProductException, DuplicateOrderException { try { manageOrders.placeOrder( salesDivision, orderNumber, product, dateDue ); } catch (java.rmi.RemoteException re ) { throw new EJBException( re ); } }



public void cancelOrder( int salesDivision, int orderNumber ) throws NoSuchOrderException, OrderNotCancelableException { try { manageOrders.cancelOrder( salesDivision, orderNumber ); } catch (java.rmi.RemoteException re) { throw new EJBException( re ); } } public synchronized Iterator getOrdersToManufacture() { try { LinkedList list = new LinkedList(); manufacture = getManufactureEJB(); OpenOrderView[] openOrders = manufacture.getOpenOrders(); for (int iter=0; iter<openOrders.length; iter++) { list.add( new OrderView(openOrders[iter]) ); } return list.iterator(); } catch (java.rmi.RemoteException re ) { throw new EJBException( re ); } }

synchronization of stateful session bean else illegal multiple concurrent access, stateless does not need it as each access would be directed to a different EJB instance



public synchronized void selectForManufacture(int salesDiv, int orderNum ) throws NoSuchOrderException, BadStatusException { try { manufacture.selectForManufacture( salesDiv, orderNum ); } catch (java.rmi.RemoteException re) { throw new EJBException( re ); } }

public synchronized boolean hasNextRouting() { try { return manufacture.hasNextRouting(); } catch (factory.manufacture.NoSelectionException nse) { throw new EJBException( nse ); } catch (java.rmi.RemoteException re) { throw new EJBException( re ); } }



public synchronized String getNextRouting() { try { return manufacture.getNextRouting(); } catch (factory.manufacture.NoSelectionException nse) { throw new EJBException( nse ); } catch (java.rmi.RemoteException re) { throw new EJBException( re ); } }

public synchronized void shipProduct( String carrier, int loadingDock ) { try { manufacture.ship( carrier, loadingDock ); } catch (factory.manufacture.NoSelectionException nse) { throw new EJBException( nse ); } catch (java.rmi.RemoteException re) { throw new EJBException( re ); } }



public Iterator getOrders(String type) { try { LinkedList list = new LinkedList(); if (type.equals( ScreenNames.ORDER_TYPE_OPEN_TEXT )) { OpenOrderView[] openOrders = manageOrders.getSchedulableOrders(); for (int iter=0; iter<openOrders.length; iter++) { list.add( new OrderView(openOrders[iter]) ); } } else if (type.equals( ScreenNames.ORDER_TYPE_OVERDUE_TEXT )) { OverdueOrderView[] overdueOrders = manageOrders.getOverdueOrders(); for (int iter=0; iter<overdueOrders.length; iter++) { list.add( new OrderView(overdueOrders[iter]) ); } } else throw new IllegalStateException(); return list.iterator(); } catch (java.rmi.RemoteException re) { throw new EJBException( re ); } }



helper methodsprivate ManageOrders getManageOrdersEJB() { try { InitialContext initial = new InitialContext(); Object objref = initial.lookup( "java:comp/env/ejb/ManageOrders" ); ManageOrdersHome home = (ManageOrdersHome) PortableRemoteObject.narrow( objref, ManageOrdersHome.class ); return home.create(); } catch (NamingException ne) { throw new EJBException(ne); } catch (java.rmi.RemoteException re) { throw new EJBException(re); } catch (javax.ejb.CreateException ce) { throw new EJBException(ce); } }



private Manufacture getManufactureEJB() { try { InitialContext initial = new InitialContext(); Object objref = initial.lookup( "java:comp/env/ejb/Manufacture" ); ManufactureHome home = (ManufactureHome) PortableRemoteObject.narrow( objref, ManufactureHome.class ); return home.create(currentCellID); } catch (NamingException ne) { throw new EJBException(ne); } catch (java.rmi.RemoteException re) { throw new EJBException(re); } catch (javax.ejb.CreateException ce) { throw new EJBException(ce); } }}

View.java

class

View.java

class

import java.util.Date;import factory.manage_orders.OpenOrderView;import factory.manage_orders.OverdueOrderView;

public class OrderView { private int salesDivision; private int orderNumber; private String product; private String status; private Date dateDue;

public OrderView(int salesDivision, int orderNumber, String product, String status, Date dateDue ) { this.salesDivision = salesDivision; this.orderNumber = orderNumber; this.product = product; this.status = status; this.dateDue = dateDue; } public OrderView(OpenOrderView view) { this(view.salesDivision, view.orderNumber, view.product, "open", view.dateDue ); } public OrderView(OverdueOrderView view) { this( view.salesDivision, view.orderNumber, view.product, view.status, view.dateDue ); }

Returns information from the model

View.java (cont.)View.java (cont.)

public OrderView() {}

public int getSalesDivision() { return salesDivision; }

public int getOrderNumber() { return orderNumber; }

public String getProduct() { return product; }

public String getStatus() { return status; }

public Date getDateDue() { return dateDue; }}

createrouting.jspcreaterouting.jsp

Create a routing for product :Sequence

Routing or you can be finished with creating routings for this product.

Submit

Code for createrouting.jspCode for createrouting.jsp

<jsp:useBean id="modelManager" class="ModelManager" scope="session" /><html><head><title>Wrox Sample Code - Create a Routing</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head><body bgcolor="#FFFFFF"><p>Create a routing for product <%= modelManager.getCurrentProductID()%>:</p><form method="post" action="routing_created"> <p>Sequence <input type="text" name="sequence"></p> <p>Routing <textarea name="routing" cols="75" rows="10"></textarea> </p> <p> <input type="submit" name="Submit" value="Submit"> </p></form><p>or you can be <a href="choices">finished with creating routings for this product</a>.</p></body></html>

placeorder.jspplaceorder.jsp

Place an order for a product:Sales division Order number Product Due date

Submit

Code for placeorder.jspCode for placeorder.jsp

<html><head><title>Wrox Sample Code - Place an Order</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head><body bgcolor="#FFFFFF"><p>Place an order for a product:</p><form method="post" action="order_placed" name="PlaceOrder"> <p>Sales division <input type="text" name="sales_div"></p> <p>Order number <input type="text" name="order_num"></p> <p>Product <input type="text" name="prod"></p> <p>Due date <input type="text" name="due_date"></p> <p><input type="submit" name="Submit" value="Submit"> </p></form><p> </p></body></html>

message.jspmessage.jsp

Thank you for placing this order. Return to main menu.

Thank you message

Code for message.jspCode for message.jsp

<html><head><title>Wrox Sample Code - Message</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head>

<body bgcolor="#FFFFFF"><p><%= request.getAttribute("message")%>. </p>

<p><a href="choices">Return to main menu.</a></p></body></html>

manageorders.jspmanageorders.jsp

Manage Your OrdersYou are currently viewing . ">Click here to view .

Sales Division

Order Number

Product Date DueClick to Cancel

">cancel

Return to main menu

Overdue Order and Open Order

Code for manageorder.jspCode for manageorder.jsp<jsp:useBean id="modelManager" class="ModelManager" scope="session" /><%@ page import="java.util.Iterator" %><%@ page import="OrderView" %><html><head><title>Wrox Sample Code - Manage Orders</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head><body bgcolor="#FFFFFF"><p>Manage Your Orders</p><p>You are currently viewing <%= request.getAttribute("order_view")%>. <a href="manageorders?ordertype=<%= request.getAttribute("order_alt_url")%>">Click here to view <%= request.getAttribute("order_alt_view") %>.</a></p>

Code for manageorder.jsp (cont.)

Code for manageorder.jsp (cont.)<table width="87%" border="1">

<tr> <td width="21%">Sales Division</td> <td width="23%">Order Number</td> <td width="19%">Product</td> <td width="16%">Date Due</td> <td width="21%">Click to Cancel</td> </tr> <% String orderView = (String) request.getAttribute("order_view"); Iterator iter = modelManager.getOrders( orderView ); while (iter.hasNext()) { OrderView view = (OrderView) iter.next(); %>

Code for manageorder.jsp (cont.)

Code for manageorder.jsp (cont.)<tr>

<td width="21%"><%=view.getSalesDivision()%></td> <td width="23%"><%=view.getOrderNumber()%></td> <td width="19%"><%=view.getProduct()%></td> <td width="16%"><%=view.getDateDue()%></td> <td width="21%"><a href="cancelorder?salesdivision=<%=view. getSalesDivision()%>&ordernumber=<%=view.getOrderNumber() %>&ordertype=<%=request.getAttribute("order_url")%>">cancel</a></td> </tr><% }%></table><p> <a href="choices">Return to main menu</a></p></body></html>

manufacturechoose.jspmanufacturechoose.jsp

Choose an order to manufacture:

Sales Division Order Number Product Date Due

Code for manufacturechoose.jsp

Code for manufacturechoose.jsp<jsp:useBean

id="modelManager" class="ModelManager" scope="session" /><%@ page import="java.util.Iterator" %><%@ page import="OrderView" %><html><head><title>Wrox Sample Code - Select for Manufacture</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head><body bgcolor="#FFFFFF"><p>Choose an order to manufacture:</p><table width="87%" border="1">

Code for manufacturechoose.jsp (cont.)

Code for manufacturechoose.jsp (cont.)<tr>

<td width="21%">Sales Division</td> <td width="23%">Order Number</td> <td width="19%">Product</td> <td width="16%">Date Due</td> </tr> <% Iterator iter = modelManager.getOrdersToManufacture(); while (iter.hasNext()) { OrderView view = (OrderView) iter.next(); %> <tr> <td width="21%"><%=view.getSalesDivision()%></td> <td width="23%"><a href="order_chosen?salesdivision=<%=view. getSalesDivision()%>&ordernumber=<%=view.getOrderNumber() %>"><%=view.getOrderNumber()%></a></td> <td width="19%"><%=view.getProduct()%></td> <td width="16%"><%=view.getDateDue()%></td> </tr><% }%></table></body></html>

cellid.jspcellid.jsp

Login:Enter your current manufacturing cell identification string: Submit

First time user will asked to log in

Code for cellid.jspCode for cellid.jsp<html><head><title>Wrox Sample Code - Enter Your Cell ID</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head>

<body bgcolor="#FFFFFF"><p>Login:</p><form method="post" action="cell_chosen"> <p>Enter your current manufacturing cell identification string: <input type="text" name="cell"> </p> <p> <input type="submit" name="Submit" value="Submit"> </p></form><p> </p></body></html>

manufactureroute.jspmanufactureroute.jsp

Here is the next step in the manufacture of this product:Solder the lid on the product.Click here when completed.

Code for manufactureroute.jsp

Code for manufactureroute.jsp

<jsp:useBean id="modelManager" class="ModelManager" scope="session" />

<html><head><title>Wrox Sample Code - Routing Step</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head>

<body bgcolor="#FFFFFF"><p>Here is the next step in the manufacture of this product:</p><p><jsp:getProperty name="modelManager" property="nextRouting"/></p><p><a href="manufactureroute">Click here when completed.</a></p><p> </p><p> </p></body></html>

ship.jspship.jsp

Ship the manufactured product:Shipping company: Loading dock:

UPS

Submit

Code for ship.jspCode for ship.jsp<html><head><title>Wrox Sample Code - Ship the Product</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head><body bgcolor="#FFFFFF"><p>Ship the manufactured product:</p><form method="post" action="ship_product"> <p>Shipping company: <select name="shipping_company"> <option>UPS</option> <option>Federal Express</option> <option>US Postal Service</option> <option>Private Carrier</option> </select></p> <p>Loading dock: <input type="text" name="loading_dock"></p> <p> <input type="submit" name="Submit" value="Submit"></p></form><p> </p></body></html>

index.htmlindex.html

Factory Demo for JSPs and EJBs

This web site provides a simple interface to the manufacturing example that we developed for the chapters on Enterprise JavaBeans in the Wrox Server Side Java book.

See the demo...

Welcome screen

Code for index.htmlCode for index.html<html> <head> <title>Wrox Sample Code - Manufacturing Application</title> </head> <body text="#000000" bgcolor="#FFFFFF" link="#0000EE" vlink="#551A8B" alink="#FF0000"> <center> <h1>Factory Demo for JSPs and EJBs</h1> </center> <center><hr width="100%"></center>

<p>This web site provides a simple interface to the manufacturing example that we developed for the chapters on Enterprise JavaBeans in the Wrox Server Side Java book.</p>

<p><a href="control/choices">See the demo...</a> </body></html>

Code for web.xmlCode for web.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE web-app PUBLIC '-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN' 'http://java.sun.com/j2ee/dtds/web-app_2.2.dtd'>

<web-app> <display-name>factoryWeb</display-name> <description>no description</description> <servlet> <servlet-name>entryPoint</servlet-name> <display-name>centralJsp</display-name> <description>no description</description> <jsp-file>main.jsp</jsp-file> </servlet> <servlet-mapping> <servlet-name>entryPoint</servlet-name> <url-pattern>/control/*</url-pattern> </servlet-mapping>

Web components collected into a JAR with .war (web archive) Archive has web.xml in WEB-INFO directory with welcome, serverlets, mappings and references to EJB

Code for web.xml (cont.)Code for web.xml (cont.)

<welcome-file-list> <welcome-file>/index.html</welcome-file> </welcome-file-list> <ejb-ref> <ejb-ref-name>ejb/ManageOrders</ejb-ref-name> <ejb-ref-type>Session</ejb-ref-type> <home>factory.manage_orders.ManageOrdersHome</home> <remote>factory.manage_orders.ManageOrders</remote> </ejb-ref> <ejb-ref> <ejb-ref-name>ejb/Manufacture</ejb-ref-name> <ejb-ref-type>Session</ejb-ref-type> <home>factory.manufacture.ManufactureHome</home> <remote>factory.manufacture.Manufacture</remote> </ejb-ref></web-app>

Directory StructureDirectory Structure

cellid.jpschoices.jsp createproduct.jsp createrouting.jsp index.html main.jsp manageorders.jsp manufacturechoose.jsp message.jsp placeorder.jsp ship.jsp WEB-INF/

web.xml classes/

ModelManager.classOrderview.classRequestProcessor.classScreenNames.class

Code for application.xmlCode for application.xml

<?xml version="1.0"?><!DOCTYPE application PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application 1.2//EN" "http://java.sun.com/j2ee/dtds/application_1_2.dtd">

<application><display-name>Factory sample</display-name><module>

<ejb>ejbs</ejb></module><module>

<web><web-uri>jsps</web-uri><context-root>/factory</context-root>

</web></module>

</application>

Web archive added at same level as EJB achive in EAR file.Added to application.xml, assuming EJB JAR in “ejbs” directory and web archive in “jsps”

Troubleshooting TipsTroubleshooting Tips

1. Place the jsps folder under the orion\applications\factory directory

2. Replace the application.xml file in orion\applications\factory\META-INF

3. Modify the default-web-site.xml file in orion\config to include a new entry for a web app:

<web-app application="factory" name="jsps" root="/factory" />

4. Start the orion server and browse to http://localhost/factory/

Good Luck with debuggers!

Questions ?

Documents

Professional Java Server Programming J2EE Edition