Important Configurations for Calling ABAP Function from Java

19 Pages·2007·0.59 MB·English

Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Important Configurations for Calling ABAP Function from Java
Web Dynpro Application

Summary
To use an ABAP Function Module (Remote Function Enabled) from a Java Webdynpro Application you have to
configure several systems like System Landscape Directory (SLD), SLD Data Supplier etc. This document
describes the configuration steps in details.

Author: Sudip Das
Company: HCL Technologies
Created on: 28 June 2007

Author Bio
Sudip Das is working as a Netweaver Consultant for HCL Technologies, Kolkata.

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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Table of Contents

Introduction......................................................................................................................................3
Configure SLD Data Supplier..........................................................................................................4
Prerequisite:.................................................................................................................................4
Procedure:....................................................................................................................................4
Configure System Landscape Directory..........................................................................................8
Prerequisite..................................................................................................................................8
Procedure.....................................................................................................................................8
Server Settings............................................................................................................................8
Data Supplier Bridge Settings....................................................................................................11
Import CIM Model Data..............................................................................................................12
Create New Technical System...................................................................................................13
Related Content.............................................................................................................................18
Disclaimer and Liability Notice.......................................................................................................19

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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Introduction

To use an ABAP Function Module (Remote Function Enabled) from a Java Webdynpro Application you have to
configure several systems like System Landscape Directory (SLD), SLD Data Supplier etc. The scenario is that,
we have two WAS, one is installed with Java Stack (let hostname hooghly) and another is installed with ABAP
Stack (let hostname sindhu, a R/3 system). The webdynpro application will be deployed in hooghly server and
the ABAP function modules are located in sindhu server. Some important information are needed for
configuration, these are listed below.

For hooghly server (Java Stack)
Hostname: hooghly
Remote login credential
Login credential to use Visual Administrator tool
Login credential to configure SLD
Login credential to use Webdynpro Content Administrator.

For sindhu server (ABAP Stack)
Hostname: sindhu
SID: DEV
System Number: 00
User name and password, which has the access to ABAP function module
Client: 200
Installation Number: 00
Database Hostname: sindhu
Logon group in which the user is assigned
SAP Logon PAD i.e SAP GUI (optional)

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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Configure SLD Data Supplier

Prerequisite:
Access for remote login to SAP J2EE Engine
Access to Visual Administrator

Procedure:
Open Visual Administrator using go.bat (for Windows) file of \\<server>\usr\sap\<SAPSID>\ JC00\j2ee\admin
folder
Go to SLD Data Supplier service under the Services node of Cluster tab.
Now open HTTP Settings tab and provide the following information and Save the information. Figure 1.1
shows the information visually.

Host hooghly
Port 500000
User administrator
Password user_password

Figure 1.1
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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Now under the RFC Setting (Figure 1.3) tab provide the R/3 System’s host name as Gateway Host and
sapgw00 as Gateway Service/Port. The convention of the value of Gateway Service/Port is
sapgw<system_number>. Now Save the information using save button. You can also find this value using the
transaction code RZ70 in your SAP GUI. Figure 1.2 shows the result.

Figure 1.2

Figure 1.3
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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Under the CIM Client Generation Settings (Figure 1.4) provide the following information, tabulated below.

Host Hooghly
Port (http/https) 50000
User administrator
Password user_password

Figure 1.4

Click Save button. Now test the CIM Client using CIMCleint Test button. A pop-up window will appears, if the
test is successful then a successful message will be displayed on the pop-up window. Figure 1.5 illustrate the
result.

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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Figure 1.5

You can also find the settings summery in the information tab. Figure 1.6 shows the settings summery. Restart
the SLD Data Supplier Service, if required.

Figure 1.6
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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Configure System Landscape Directory
To access Adaptive RFC (ABAP function module) from java webdynpro application you have to create a JCO
connection for that application. To create JCO connection first you have to configure SLD. The following section
describes the detailed procedure to configure SLD in step by step.

Prerequisite
Login credential to configure SLD.
Both SAP J2EE engine and R/3 System are running.
Login credential to connect R/3 System like client number, system number etc.

Procedure
Open SLD configuration screen via web browser using http://<hostname>:50000/sld/ URL. i.e in our case the
/. In the pop-up window provide the user name and password.http://hooghly:50000/sldURL will be
Now go to the Administration tab and click on the stop server button (Figure 1.7), if the server is already
running.

Figure 1.7

Server Settings
Now click the Server Settings link on the same web page. Provide some vital information in the server settings
page. Figure 1.8 shows the server settings page.
For Server Parameters:
Object Server: sindhu
Working Directory: "<X>:\usr\sap\<SAPSID>\SYS\global\sld
Now press Set Button.
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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Persistence:
Select Database option for persistence storage.
Now press Set Button.
ABAP Connection Parameters
Client: 200
System Number: 00
User: user_name
Host: sindhu
Password: user_pasword
Language: en
Now press Set Button.
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Important Configurations for Calling ABAP Function from Java Web Dynpro Application

Figure 1.8

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