WebSphere Application Server - IBM Redbooks

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2.4.3 JavaServer Pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 2.4.4 Tag libraries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 2.4.5 XML. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 2.4.6 Web services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 2.4.7 Struts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 2.5 Designing the database. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 2.5.1 Normalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 2.5.2 Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2.5.3 Datatypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 2.5.4 Deriving the data model from the use-case model . . . . . . . . . . . . . . 39 2.6 For more information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Chapter 3. Using Studio Site Developer . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.1 The workspace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.1.1 Recovering files from their local history . . . . . . . . . . . . . . . . . . . . . . 45 3.2 Perspectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 3.2.1 Editors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 3.2.2 Using fast views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 3.2.3 Customizing perspectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3.2.4 Setting perspective preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3.3 Finding help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Chapter 4. Working with Web applications . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1 Enterprise application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 4.1.1 Enterprise application deployment descriptor . . . . . . . . . . . . . . . . . . 58 4.2 Web application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 4.2.1 A Web application in an application server . . . . . . . . . . . . . . . . . . . . 64 4.3 Working with Web applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 4.3.1 Creating an enterprise application . . . . . . . . . . . . . . . . . . . . . . . . . . 65 4.3.2 Creating a Web project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 4.3.3 Web project directory structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 4.3.4 Application templates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Chapter 5. Working with HTML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 5.1 HTML support in Studio Site Developer . . . . . . . . . . . . . . . . . . . . . . . . . . 78 5.1.1 Using the Web perspective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 5.1.2 Editing with the Page Designer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 5.1.3 Building applications with Web Site Designer . . . . . . . . . . . . . . . . . . 93 5.1.4 HTML/XHTML wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 5.1.5 Using Page templates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 5.1.6 Working with framesets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 5.1.7 Adding tables, links, text, and images. . . . . . . . . . . . . . . . . . . . . . . 116 5.1.8 Working with forms, input fields, and buttons . . . . . . . . . . . . . . . . . 119 5.1.9 Working with style sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 iv IBM WebSphere Application Server - Express V5.0.2 Developer Handbook
5.1.10 Working with WebArt Designer . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 5.1.11 Working with animation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 5.2 Adding HTML pages to the Online Catalog sample . . . . . . . . . . . . . . . . 135 5.2.1 Creating HTML pages using Web Site Designer . . . . . . . . . . . . . . 135 5.2.2 Customizing a page template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 5.2.3 Creating HTML pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Chapter 6. Accessing databases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 6.1 Java Database Connectivity (JDBC) overview . . . . . . . . . . . . . . . . . . . . 154 6.1.1 Data source versus direct connection . . . . . . . . . . . . . . . . . . . . . . . 154 6.2 Working with databases in Studio Site Developer. . . . . . . . . . . . . . . . . . 155 6.2.1 Using the Data perspective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 6.2.2 Creating the database. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 6.2.3 Connecting Studio Site Developer to the database . . . . . . . . . . . . 159 6.2.4 Importing and working with the database design . . . . . . . . . . . . . . 162 6.2.5 DB output view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 6.2.6 Creating Web pages to access the database . . . . . . . . . . . . . . . . . 174 6.2.7 Database connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 6.2.8 Defining a resource reference for the data source (optional) . . . . . 197 6.2.9 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 6.2.10 Building SQL statements using the SQL Query Builder . . . . . . . . 211 Chapter 7. Working with servlets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 7.1 Servlet overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 7.1.1 A servlet’s life cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 7.1.2 The servlet’s environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 7.1.3 Servlets in an enterprise application . . . . . . . . . . . . . . . . . . . . . . . . 220 7.2 Studio Site Developer and servlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 7.2.1 Wizards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 7.2.2 Web perspective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 7.2.3 Deployment descriptor editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229 7.3 Using servlets in the Online Catalog sample. . . . . . . . . . . . . . . . . . . . . . 232 7.3.1 Creating a servlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 7.4 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 Chapter 8. Working with JSPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 8.1 JSP overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 8.1.1 JSP execution model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 8.1.2 Syntax for coding JavaServer Pages . . . . . . . . . . . . . . . . . . . . . . . 244 8.1.3 JSP 1.2 elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246 8.2 Building JSP pages with Studio Site Developer . . . . . . . . . . . . . . . . . . . 256 8.2.1 Preferences and properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 8.2.2 Web perspective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 8.2.3 JSP wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 Contents v
Page 1: IBM WebSphere Application Server -
Page 4 and 5: Take Note! Before using this inform
Page 8 and 9: 8.3 Using JSPs in the Online Catalo
Page 10 and 11: 13.1.1 Configuration and management
Page 12 and 13: 16.5.1 Adding JAAS authentication t
Page 14 and 15: xii IBM WebSphere Application Serve
Page 16 and 17: Trademarks The following terms are
Page 18 and 19: Information Systems. His areas of e
Page 20 and 21: xviii IBM WebSphere Application Ser
Page 22 and 23: 1.1 What is IBM WebSphere Applicati
Page 24 and 25: ► A Web container ► Web service
Page 26 and 27: 1.1.7 Roles and responsibilities In
Page 28 and 29: ► Migrating Applications from IBM
Page 30 and 31: 1.3 Bringing up Studio Site Develop
Page 32 and 33: illustrates techniques for internat
Page 34 and 35: Figure 1-4 Customer service example
Page 36 and 37: From a lower-level perspective, we
Page 38 and 39: 2.1 Design considerations e-busines
Page 40 and 41: Note: WebSphere Application Server
Page 42 and 43: Note: WebSphere Application Server
Page 44 and 45: Actors can be identified by asking
Page 46 and 47: The maintain inventory use case has
Page 48 and 49: Input Page (View) Display Page (Vie
Page 50 and 51: In the following sections, we discu
Page 52 and 53: Figure 2-9 Dependencies allowed in
Page 54 and 55: 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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Figure 16-13 JAAS security 6. Save
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This configuration allows access to
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Enabling security when installing D
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16.7 Using SSL with applications Th
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Note: For additional SSL informatio
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Wizard The Template application wiz
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Icon Name Description Web Pages Sec
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Figure A-3 Template application pre
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Figure A-5 Template selection 5. Cl
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Figure A-7 Application properties p
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Figure A-9 Database connection page
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- Up moves the widget up within the
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► Different versions of a feature
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Figure B-3 Install configuration vi
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Feature updates view The Feature up
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Figure B-7 Feature install wizard -
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Figure B-9 Feature install wizard -
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Figure B-11 Available updates searc
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Figure B-12 My computer folder 610
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Online Catalog sample application o
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SHIPPING_ORDER table The SHIPPING_O
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Homepage XST file calls Servlet Fig
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Item Folder/Package Description adm
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Catalog Item Folder/Package Descrip
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Note: To add items to the wishlist
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session.setAttribute("att1", o); ..
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Figure C-7 Web site diagram view of
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Figure C-8 theme folder Deployment
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Table C-11 Servlet login items Item
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Item Folder/Package Description Log
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Using the Web material The addition
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Update the FeaturedItemXMLServlet s
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15.On the Create a Resource Propert
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Other resources These publications
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► Java Authentication and Authori
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oker 357 BSF 32 buffer attribute 24
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host variable 184, 187 HTML 60 crea
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460, 466, 522, 527, 529, 540-541 XM
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Session 297-298, 300-301 Sslext 300
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XML schema editor graph view 328 xm
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