WebSphere Application Server - IBM Redbooks

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Note: To add items to the wishlist the HTTPSession class was used. For more information please see “HttpSession” on page 623. Figure C-5 Web site diagram view of wishlist component The table below lists the main files involved in this portion of the application. Table C-8 Wishlist items Item Folder/Package Description managewishlist.jsp wishlist This page is accessed from index.html and is used to display the contents of a user’s wishlist. The user can also remove the items from his wishlist if he wishes. It also allows the user to submit there wishlist if he is a current customer of the site, or he can register as a new customer. AddNewCustomer.html wishlist This page allows users to add a new customer to the SALESAPP database using an HTML form. The user submits customer information to NewCustomer.jsp for validation and processing. NewCustomer.jsp wishlist This page takes the customer information from AddNewCustomer.html for processing. The data is first validated. If the data passes the validation, it is submitted into the SALESAPP database. If the data does not pass validation then the user is informed of the error and then sent back to the previous page. 622 IBM WebSphere Application Server - Express V5.0.2 Developer Handbook
Item Folder/Package Description CurrentCustomer.jsp wishlist This page receives the user and password information from managewishlist.jsp. The page verifies that the user exists and submits the wishlist contents and customer information to the order table. Is also updates the quantity item table in the SALESAPP database and removes all the items from the wishlist. If the user does not exist then the user is informed of the error and is asked to try again or to register as a new customer using AddNewCustomer.html. HttpSession The HttpSession class supports built-in session tracking between the client and the server, by user. The Web container provides an implementation of the HTTPSession interface giving the application’s Web components access to the methods of the HTTPSession interface. The container recognizes a user by assigning him or her a unique session identifier. An object is associated with this identifier and the servlet may store, retrieve, and remove objects from this user session. The objects belong to a particular session and represent the session data for a particular user. Every time the client makes a request, the servlet gets the session object associated to him or her through the identifier (a new session is created if the user does not have any) and performs operations on it. The session identifiers are managed by the container which ensures that there is one session for each user. The API provides methods to destroy a session, typically used when a user logs out. The following shows an example of handling the HttpSession objects; this code can be included in the service method of a servlet. Example: C-1 Using the HttpSession interface HttpSession session = request.getSession(true); if (session.isNew()) { // perform actions for a new user ... // set an attribute in the user session Appendix C. Online Catalog application 623
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IBM WebSphere Application Server -
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Take Note! Before using this inform
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2.4.3 JavaServer Pages. . . . . . .
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8.3 Using JSPs in the Online Catalo
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13.1.1 Configuration and management
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16.5.1 Adding JAAS authentication t
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xii IBM WebSphere Application Serve
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Trademarks The following terms are
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Information Systems. His areas of e
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xviii IBM WebSphere Application Ser
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1.1 What is IBM WebSphere Applicati
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► A Web container ► Web service
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1.1.7 Roles and responsibilities In
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► Migrating Applications from IBM
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1.3 Bringing up Studio Site Develop
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illustrates techniques for internat
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Figure 1-4 Customer service example
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From a lower-level perspective, we
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2.1 Design considerations e-busines
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Note: WebSphere Application Server
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Note: WebSphere Application Server
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Actors can be identified by asking
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The maintain inventory use case has
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Input Page (View) Display Page (Vie
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In the following sections, we discu
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Figure 2-9 Dependencies allowed in
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2.4.4 Tag libraries ► Separation
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2.4.7 Struts Struts is an open-sour
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2.5.2 Indexes Third normal form In
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CUSTOMER CUSTOMER_ID :CHAR(10) CUST
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42 IBM WebSphere Application Server
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3.1 The workspace Studio Site Devel
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Figure 3-2 Compare with Local Histo
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Shortcut bar Figure 3-4 Web perspec
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3.2.2 Using fast views 1. From the
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New icon Figure 3-6 Designating a v
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3.3 Finding help ► Select a defau
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The online help is laid out in an e
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4.1 Enterprise application An enter
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Elements contained within a Web app
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► A set of initialization paramet
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Some elements of Example 4-1 on pag
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Although this wizard allows you to
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Figure 4-4 Creating a Web Project 5
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► WebContent: The location of all
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76 IBM WebSphere Application Server
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5.1 HTML support in Studio Site Dev
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Project Navigator view The Project
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2. From the Thumbnails view, drag t
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Colors view Figure 5-5 Setting colo
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Palette view The Web tools Palette
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► Double-Click Support: you can d
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Figure 5-9 Servers view When a serv
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Tip: When you place the cursor with
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Important: Using Web Site Designer
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Important: If a Web page icon has b
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Item Sub Item Category Description
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Figure 5-16 Associated page icon Pa
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Inserting a navigation trail You ca
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Example 5-1 spec.html [ < !-- site
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An example of a page template you w
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d. Select HTML or XHTML as the Mark
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header.html menu.html Figure 5-20 W
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5.1.7 Adding tables, links, text, a
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Figure 5-23 Adding a link These val
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5.1.9 Working with style sheets Sty
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5. Select the Link radio button fro
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the WebArt Gallery tab and the Gall
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Figure 5-27 Using the WebArt Design
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Figure 5-29 Grouping objects You wi
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Figure 5-30 Type of frames Creating
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The animation is played starting wi
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Figure 5-36 WebSphere Studio Animat
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3. To add our company name to the W
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Figure 5-39 Set Selector of New Sty
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Figure 5-41 Add Style dialog 17.Cli
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Figure 5-44 WebSphere Studio Art De
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Figure 5-46 Opening Web Site Design
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Figure 5-49 Creating an HTML page 7
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Figure 5-51 index.html opened in Pa
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Figure 5-53 Runtime of index.html 1
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152 IBM WebSphere Application Serve
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6.1 Java Database Connectivity (JDB
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Using databases in an application i
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6.2.2 Creating the database Althoug
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3. This will open the The New Datab
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Note that the class location points
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Figure 6-7 Create a schema 2. Enter
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SHIPPING_ORDER table The SHIPPING_O
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Figure 6-9 Create the table columns
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The next logical step is to create
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Figure 6-13 Execute the DDL - step
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To access the DB Output view: 1. Cl
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Java package: During the wizard you
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Note: You can use this same process
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Figure 6-20 Select the tables 9. Mo
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Figure 6-22 Database select conditi
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Figure 6-24 The generated SQL state
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Figure 6-26 Defining the controller
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Figure 6-27 Design the input form 7
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Figure 6-28 Design the master view
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Figure 6-30 Renaming the Web pages
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PRICE ASC This does two things.
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In order to run the application usi
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► How credentials are passed to t
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6.2.9 Testing We have not looked at
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Figure 6-36 Select database and dri
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Figure 6-38 Finished JDBC 8. With t
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Figure 6-40 Data source information
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Figure 6-41 JDBC connection paramet
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Figure 6-43 Server variables page 1
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SQL statement you want to build fro
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7.1 Servlet overview The servlet me
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The service() method is called with
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7.1.3 Servlets in an enterprise app
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Figure 7-3 Package wizard 7. Click
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7.2.2 Web perspective The Web persp
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Figure 7-6 Content assist Content a
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Figure 7-8 Quick Fix Outline view A
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Figure 7-11 Details - URL Mappings
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Figure 7-17 WebSphere extensions 7.
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Figure 7-19 Servlet wizard - screen
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Figure 7-21 Servlet wizard - screen
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Get data from HTML form String user
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7.4 References Some additional refe
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8.1 JSP overview In the early days
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In fact, in WebSphere’s JSP imple
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8.1.3 JSP 1.2 elements The JSP 1.2
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Directives Directives give a way to
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A point of note concerns the sessio
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Note: After deployment to a server,
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The syntax for expression tags is:
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The include action tag works in fas
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Note: You would not have the conten
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The list you see is relevant to the
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Figure 8-7 Outline view Palette vie
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5. You have three options for proce
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In this example, we will be buildin
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Figure 8-11 Adding tag files For ou
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Figure 8-13 Add the JSP to web.xml
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INSERT INTO DB2ADMIN.ITEM( ITE
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9.1 Custom tag library (taglibs) co
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9.1.2 When to use ► Controller lo
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These are: - TagExtraInfo: Provides
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This variable will store the name a
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The TLD contains two main elements,
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It is possible to avoid the need to
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9.2 Studio Site Developer and tag l
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Figure 9-3 Importing a tag library
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3. From the first Import window sel
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Figure 9-7 Adding the Validtag tagl
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9.2.3 Snippets view The Snippets vi
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Page tag library (from Jakarta) The
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Tip: If you want to see how the tag
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Each taglib is different and will h
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9.3.2 Step 2: Adding a taglib direc
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2. Select JSP- > Insert Custom... f
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As you are working with taglib code
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10.1 XML overview 10.1.1 XML markup
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Welcome to the ITSO SG24-6555
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10.1.4 Validation A DTD identifies
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It is worth noting that XSDs can be
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Note that the XSD file has to be a
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► Create XML documents from DTDs,
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10.2.2 Wizards Figure 10-3 XML pers
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XSL wizard This is a tool for creat
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Figure 10-4 XML editor The XML edit
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Figure 10-5 Using the XML schema ed
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When you first create a new DTD fro
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10.3 Using XML in the Online Catalo
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Example 10-1 FeaturedItem SQL state
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7. On the next page, select the Cre
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NAME DESCRIPTION PRICE
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Figure 10-13 Libraries tab 5. Click
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5. Verify that the Public modifier
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import java.util.*; import java.net
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Placeholder for xslContent // //Add
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if (paramValues != null) paramValue
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xslContent += ""; xslContent += "";
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Figure 10-18 Web site diagram 6. Cl
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11.1 Web services overview What is
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Service Requestor Internet Figure 1
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► UDDI (universal description, di
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Encoding rules Encoding rules defin
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service. A binding template points
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More information The Web site of th
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Code Generation The Code Generation
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Using the WSDL editor, you can do t
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11.3 Using Web services in the Onli
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Figure 11-8 Web services page a. Ve
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Figure 11-10 Web service selection
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Figure 11-12 Web service test page
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- Proxy: The proxy class makes the
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► WSDL 1.1 specification at: http
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12.1 Struts overview Struts is an o
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When a browser submits an HTML form
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When initialized, the action servle
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Note: Once Struts support has been
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3. Select Add Struts support and JS
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Struts tools You can set the follow
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► Evaluate conditional logic tags
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► Graphical connection format Spe
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► Forwards: A Struts forward is a
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Item Parent Function Icon Draw All
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12.2.5 Wizards To use an action, se
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Figure 12-11 Action wizard - In the
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- If you want to specify a form bea
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- If you want to reuse an existing
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g. If you want to create method stu
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c. Specify the name of the Java pac
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10.On the Design the Form page, you
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Note: The Exception wizard can also
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5. Type the name of the new Struts
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d. If you want to associate the Web
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12.2.8 Data Mappings view The Strut
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Note: We did not follow this sample
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Note: The Web diagram file (*.gph)
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Important: Notice that the icons ar
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Important: Notice that the connecti
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You will notice that there is a war
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Example 12-5 Adding a html text tag
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23.Save your changes and exit the P
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Admin2 page The admin2.jsp page wil
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Figure 12-31 Creating an ActionForm
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The method returns errors if either
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Example 12-13 LoginAction class pub
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Figure 12-35 Local forwards for the
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Example 12-14 LogoutAction class pu
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Important: If you use the Struts fr
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The ActionServlet handles the reque
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13.1 Application server overview We
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Application developer Internet user
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Note: The Web perspective also cont
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13.3 Defining servers and server co
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Figure 13-6 Creating servers and se
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3. Update the server configuration
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13.4.2 Publishing an application to
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Note: If you have not changed the s
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Figure 13-13 Check the console for
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Tip on setting a server preference:
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The following are the steps require
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Figure 13-18 Define the remote serv
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Figure 13-20 Defining the copy sett
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Figure 13-21 Deployed application f
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The server configuration can be ope
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► Trace: Allows you to enable Web
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Note: You can also start the server
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3. Enter the EAR file name to expor
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Example 13-2 IBM Agent settings
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14.1 Debugging in the Web perspecti
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Figure 14-2 500 page error These er
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14.1.4 Editors Note: The Tasks view
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► Standard output: Default color
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Figure 14-7 Debug perspective Break
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Note: For additional information on
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Figure 14-12 Breakpoint properties
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Figure 14-13 Setting a breakpoint i
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Note: For additional information ab
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Figure 14-17 Breakpoint view 14.3.3
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15.1 Team development with CVS CVS
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15.2 Team environment using Studio
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d. Select the connection type (auth
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Note: When you share a project you
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15.4.2 Copy (commit) the project to
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It makes sense to do this when you
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Figure 15-5 Viewing the project ver
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15.6 Working with the team using th
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Figure 15-8 Working with conflicts
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► Current change: In the Text Com
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If there is a conflict, use the Tex
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► Based on the project in your wo
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Tip: You can see existing branch na
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Developer 1 (maintenance developer)
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You will find the following informa
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When such a situation occurs, you w
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Figure 15-16 File (text) compare ed
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16.1 Terms Before starting this top
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Figure 16-1 Web module deployment d
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16.4 Securing applications with rol
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2. Define roles to represent a logi
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Figure 16-4 Add a role Define the c
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Figure 16-6 Adding a constraint 3.
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Assign a role to the constraint Wit
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Figure 16-10 Enterprise application
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Tip: If you are using Internet Expl
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} // get the principal from the req
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Page 606 and 607: Figure A-3 Template application pre
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Page 612 and 613: Figure A-9 Database connection page
Page 614 and 615: - Up moves the widget up within the
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Page 618 and 619: ► Different versions of a feature
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Page 626 and 627: Figure B-9 Feature install wizard -
Page 628 and 629: Figure B-11 Available updates searc
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Page 632 and 633: Online Catalog sample application o
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Page 644 and 645: session.setAttribute("att1", o); ..
Page 646 and 647: Figure C-7 Web site diagram view of
Page 648 and 649: Figure C-8 theme folder Deployment
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Page 654 and 655: Using the Web material The addition
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