wd a complete+example+with+screenshots

8/10/2019 WD A complete+Example+with+Screenshots

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(!ma#e copied from SAP content)

!n WD for ABAP mostly the same structure is used with the #enerated code 1 the custom

code processed for load #eneration to finally render the runnable application"

& Application scenarios with WD

he WD application can be used to access different %inds of data sources" From anABAP wor%bench, all %inds of re2usable components li%e function modules, BAP!s 1

methods can be directly accessed" his rules out the very possibility of the application

bein# disrupted abruptly to #ive an &P error when connection from the 0ava to theABAP stac% when wor%in# with the normal WD for 0ava scenarios" !t is even possible to

access the database usin# the ABAP S.3.4 statement (*ot recommended)"

(!ma#e copied from SAP content)

he Web services can be used usin# the standard S5AP protocol to business data in the

dynpro pa#e"


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he SAP 0ava connector (04o) can be used to call methods of an .0B residin# on the

SAP 06.. en#ine"

7odel ob8ects are yet *5 supported by SAP WD ABAP" !t is recommended to havereusable entities which will encapsulate the business lo#ic to create the ABAP classes

containin# the source code" he development of faceless WD components are also

supported which is later accessed by other WD components"

' Beneits o WD

he main #oal of WD is to provide applications usin# minimal development efforts

and devotin# ma'imum effort on the desi#n time"

By usin# a a declarative approach and meta model declarations, the lan#ua#eindependent !s can be developed with the least effort" hou#h the provision of hand

written code e'ists, the structure is desi#ned to manipulate the business data"

WD for ABAP supports !nternaliation, flic%er free screen and a clean separation of !sand business lo#ic" !t also supports value help, dynamic pro#rammin#, SAP 3ist 9iewer

and seamless inte#ration with the SAP Portal"

( De#elopin% an application usin% WD ABAP

Objective: he ob8ective of this application is to #et people started with thedevelopment of web based application in the SAP ABAP en#ine usin# the SAP

WebDynPro for ABAP pro#rammin# model"

Structure of the application:he re$uirement is to have 6 views, (SA: and :.S3 view)" ser enters the name in

the first view and clic%s on the submit button" he second view reco#nies the name andwelcomes the user"

STEPS

Step 1) Open ABAP Workbench (se80) select Web!"nPro #o$p%&nf enter a na$e for

"our W! co$ponent an' press enter


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Step ) Save the object in a transport packa*e or as a local object


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+ou shoul' no, *et the follo,in* screen A co$ponent controller co$ponent interface

an' ,in'o, is create' b" 'efault

Step -) #reate a W! vie, . S/A/ ie,


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Save "our application

Step 6) !ouble click on the Win'o, Select 3!&/ $o'e


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Step 7) i*ht click on the Win'o, Select 3B3! ie,

Step 9) Select "our vie,


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Step 8) epeat the sa$e process for 3S45/ ie,

Step ) Activate all objects

Step ) ;oto S/A/ ie, Select the 5a"out tab i*ht click on

OO/4&3533


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Step 10) #reate an 4& ele$ent of t"pe /e=tie, 3nter the /e=t for the ele$ent


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Step 11) epeat step > 10 for creatin* other 4& ele$ents as follo,s :


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Save > Activate

(+ou $i*ht *et this error on activation)


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( eason: /he error $eans that ,henever u 'efine an 4& ele$ent u nee' to 'o 'ata

bin'in* ,ith the vie, conte=t ,hich ,e have not 'one as of no,

/o avoi' this error u can re$ove the inputfiel' ele$ent no, an' a'' later )

Step 1) 10 to create the follo,in* 4& ele$ents

Save

+ou shoul' *et a screen as un'er for the 3S45/ ie,


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Step 1-) !ouble click on #o$ponent #ontroller ;oto 3!&/ $o'e

Step 12) #reate a


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Save

Step 16) #reate an Attribute


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SA3


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Step 17) #O


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Step 19) !o the sa$e for S/A/@&3W

SA3

Step 18) !efine


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Step 0) !efine an &nboun' Plu* in S/A/ &3W

SA3

Step 1) !A/A B&

Open S/A/ ie,


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Step ) !ouble click on &


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Step -)


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SA3

Step 2) Select the 3S45/S ie, Select the input fiel' an' bin' it to a conte=t as

before


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Attach a Plu* to the Action

Step 7) #reate


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Select the Outboun' Plu* of the S/A/ ie, i*ht click C#reate


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Step 9) epeat the sa$e process for the Outboun' Plu* of the 3S45/ ie,

SA3

Step 8)


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Save

+ou shoul' *et a screen as un'er

!ouble click on the Application


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wd a complete+example+with+screenshots

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