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SAP NetWeaver Developer's Guide

SAP NetWeaver Developer's GuideSAP NetWeaver Developer's Guide

SAP NetWeaver Developer's Guide

Release: SAP NetWeaver 2004s

Release: SAP NetWeaver 2004sRelease: SAP NetWeaver 2004s

Release: SAP NetWeaver 2004s

Tutorials

TutorialsTutorials

Tutorials

Document Version 1.00 – October 2005

SAP AG

Dietmar-Hopp-Allee 16

69190 Walldorf

Germany

T +49/18 05/34 34 24

F +49/18 05/34 34 20

www.sap.com

No part of this publication may be reproduced or transmitted in

any form or for any purpose without the express permission of

SAP AG. The information contained herein may be changed

without prior notice.

Some software products marketed by SAP AG and its distributors

contain proprietary software components of other software

vendors.

Microsoft, Windows, Outlook, and PowerPoint are registered

trademarks of Microsoft Corporation.

IBM, DB2, DB2 Universal Database, OS/2, Parallel Sysplex,

MVS/ESA, AIX, S/390, AS/400, OS/390, OS/400, iSeries,

pSeries, xSeries, zSeries, z/OS, AFP, Intelligent Miner,

WebSphere, Netfinity, Tivoli, and Informix are trademarks or

registered trademarks of IBM Corporation in the United States

and/or other countries.

Oracle is a registered trademark of Oracle Corporation.

UNIX, X/Open, OSF/1, and Motif are registered trademarks of

the Open Group.

Citrix, ICA, Program Neighborhood, MetaFrame, WinFrame,

VideoFrame, and MultiWin are trademarks or registered

trademarks of Citrix Systems, Inc.

HTML, XML, XHTML and W3C are trademarks or registered

trademarks of W3C

, World Wide Web Consortium,

Massachusetts Institute of Technology.

Java is a registered trademark of Sun Microsystems, Inc.

JavaScript is a registered trademark of Sun Microsystems, Inc.,

used under license for technology invented and implemented by

Netscape.

MaxDB is a trademark of MySQL AB, Sweden.

SAP, R/3, mySAP, mySAP.com, xApps, xApp, SAP NetWeaver,

and other SAP products and services mentioned herein as well as

their respective logos are trademarks or registered trademarks of

SAP AG in Germany and in several other countries all over the

world. All other product and service names mentioned are the

trademarks of their respective companies. Data contained in this

document serves informational purposes only. National product

specifications may vary.

These materials are subject to change without notice. These

materials are provided by SAP AG and its affiliated companies

("SAP Group") for informational purposes

only, without representation or warranty of any kind, and SAP

Group shall not be liable for errors or omissions with respect to

the materials. The only warranties for SAP Group products and

services are those that are set forth in the express warranty

statements accompanying such products and services, if any.

Nothing herein should be construed as constituting an additional

warranty.

Disclaimer

Some components of this product are based on Java™. Any code

change in these components may cause unpredictable and severe

malfunctions and is therefore expressively prohibited, as is any

decompilation of these components.

Any Java™ Source Code delivered with this product is only to be

used by SAP’s Support Services and may not be modified or

altered in any way.

Any software coding and/or code lines / strings ("Code") included

in this documentation are only examples and are not intended to

be used in a productive system environment. The Code is only

intended better explain and visualize the syntax and phrasing

rules of certain coding. SAP does not warrant the correctness and

completeness of the Code given herein, and SAP shall not be

liable for errors or damages caused by the usage of the Code,

except if such damages were caused by SAP intentionally or

grossly negligent.

Contents

TUTORIALS....................................................................................................................... 1

COMPONENT TUTORIAL................................................................................................. 2

2.1

Using Server-Side Eventing in Web Dynpro Components ....................................... 2

2.1.1

Eventing Example Application........................................................................ 3

2.1.2

Creating a Project Structure........................................................................... 4

2.1.3

Implementing the View Composition.............................................................. 6

2.1.4

Developing the Internal Web Dynpro Component........................................ 10

2.1.5

Developing the Web Dynpro Component..................................................... 18

2.1.6

Using External Context Mapping.................................................................. 25

MODEL TUTORIALS....................................................................................................... 31

3.1

Creating a Web Dynpro Application Accessing ABAP Functions........................... 31

3.1.1

Importing a Project Template ....................................................................... 34

3.2

Initial Project Structure............................................................................................ 35

3.2.1

Developing the Example Application – Steps .............................................. 36

3.2.2

Creating a Model .......................................................................................... 37

3.2.3

Creating a Custom Controller Context and Binding it to the Model ............. 40

3.2.4

Mapping Custom Context Elements to View Context Elements .................. 42

3.2.5

Creating Actions and Declaring Methods..................................................... 45

3.2.6

Editing the UI Elements................................................................................ 47

3.2.7

Adding the Implementation of the Backend Connection .............................. 49

3.2.8

Building, Deploying, Configuring, and Running Your Application ................ 52

3.3

Using the Car Rental Web Service with Web Dynpro............................................. 55

3.3.1

Importing a Project Template ....................................................................... 56

3.3.2

Creating a Model .......................................................................................... 57

3.3.3

Creating a Component Context and Binding It to the Model........................ 62

3.3.4

Mapping a View Context onto the Component Controller............................ 67

3.3.5

Defining Data Binding for UI Elements......................................................... 68

3.3.6

Implementing the Event Handler of the View............................................... 70

3.3.7

Building, Deploying, and Running Your Application..................................... 72

3.4

Creating an Email Client Using Web Dynpro and Web Services............................ 74

3.4.1

Creating a Project Structure......................................................................... 75

3.4.2

Creating a Web Service Model..................................................................... 77

3.4.3

Creating the Binding: Component Controller Context and Model................ 81

3.4.4

Mapping View Context Elements to Component Context Elements............ 86

3.4.5

Creating the SendEmail Action .................................................................... 88

3.4.6

Designing a View Layout.............................................................................. 89

3.4.7

Adding the Implementation for the Web Service Connection ...................... 92

3.4.8

Building, Deploying, and Running the Project.............................................. 97

VIEW TUTORIALS........................................................................................................... 99

4.1

Dialog Boxes in Web Dynpro Applications.............................................................. 99

4.1.1

Importing a Project Template ..................................................................... 100

4.1.2

Creating an External Window..................................................................... 103

4.1.3

Creating a Dialog Box ................................................................................ 105

4.1.4

Creating a Confirmation Dialog Box........................................................... 117

4.1.5

Executing the Complete Application........................................................... 119

4.2

Modeling View Compositions in Web Dynpro....................................................... 121

4.2.1

Importing a Project Template ..................................................................... 123

4.3

Initial Project Structure.......................................................................................... 124

4.3.1

Developing the Example Application for a View Composition ................... 126

4.3.2

Adding the ViewContainerUIElement......................................................... 126

4.6.1

Embedding a View Set in a ViewContainerUIElement............................... 128

4.6.2

Using a Web Dynpro Component............................................................... 131

4.6.3

Embedding an Inner View Set.................................................................... 132

4.6.4

Embedding Component Interface Views in a View Set.............................. 133

4.9.1

Controlling the Lifecycle of a Component Instance.................................... 137

4.10

Tutorial: Developing with Tables in Web Dynpro.................................................. 143

4.10.1

Importing the Project Template .................................................................. 144

4.10.2

Creating the Component Controller Context.............................................. 146

4.10.3

Mapping the View Context onto the Component Controller Context ......... 148

4.10.4

Enhancing the View Context ...................................................................... 150

4.10.5

Creating the Table...................................................................................... 152

4.10.6

Binding the Table to the Context................................................................ 152

4.10.7

Creating and Binding the Detailed Form.................................................... 154

4.10.8

Deleting Single or Several Rows................................................................ 155

4.10.9

Sorting ........................................................................................................ 156

4.10.10

Calculating the Total per Article.......................................................... 158

4.10.11

Calculating the Total........................................................................... 159

4.10.12

Setting and Changing the Currency.................................................... 161

4.10.13

Building, Deploying, and Running the Table Tutorial ......................... 162

4.11

Integration of a Tree Structure in a Web Dynpro Table........................................ 164

4.11.1

Importing a Project Template ..................................................................... 165

4.11.2

Further Procedure for Developing the Web Dynpro Application................ 167

4.11.3

Executing the Application........................................................................... 181

4.12

Constructing a Recursive and Loadable Web Dynpro Tree ................................. 182

4.12.1

Importing a Project Template ..................................................................... 183

4.13

Initial Project Structure.......................................................................................... 184

4.13.1

Recursive Context Nodes........................................................................... 185

4.13.2

Further Procedure for Creating the Web Dynpro Tree............................... 186

4.13.3

Building, Deploying, and Running the Project............................................ 198

4.14

Value Help Tutorials.............................................................................................. 200

4.14.1

A Simple Input Form................................................................................... 200

4.14.2

Value Help in Web Dynpro Applications .................................................... 225

4.14.3

Advanced Input Help - The Object Value Selector (OVS) ......................... 240

4.15

Developing International Web Dynpro Applications.............................................. 251

4.15.1

Importing a Project Template ..................................................................... 253

4.16

Tabular Project Structure ...................................................................................... 254

4.16.1

Creating Texts for the Original Language .................................................. 255

4.16.2

Translating Text Resources into Other Languages.................................... 266

4.16.3

Define language-specific application properties......................................... 270

剩余434页未读，继续阅读

晓罗

2018-08-23

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