UI_CreateWebServices_5min(2)

8/7/2019 UI_CreateWebServices_5min(2)

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Create SAP Web Service with SAP .Net

Connector in 5 minutes

Dennis Wang

Microsoft / EAS /SAP



What is SAP .NET Connector SAP product. Based on Microsoft .NET

Technology

Interact with SAP via RFC/SOAP Fully integrated with Visual Studio.NET

Managed Code



Feature Highlight

Generates C# Proxy Classes for any .NET

application integrations

Supports RFC and SOAP Supports qRFC, tRFC

Supports asynchronous SOAP calls

RFC client or RFC server



Common Language

Runtime

.NET

Connector

Runtime

Web

Services

VB C++ C# «

Visual Studio.NET

Microsoft .NET

Proxy

Class

Generator

SAP System

BOR

DDIC

Interface

repository

RFC

SOAP

RFC Layer Application

Run

time

.NET Connector

Component (generated)

Design

time

SOAP Layer



Feature of Web Service

It is ASP.Net Web Service

Hosted by IIS. Using HTTP protocol

Secure: SSL for connection. NTLM for

authentication. Role base authorization.

Single sign via NTLM GSSAPI

Platform Neutral. Can be accessed via http

protocol. Strong versioning via XML Namespace



Steps to Create Web Service for

RFC_Customer_Get Create a C# project for ASP.Net Web Service

Generate SAP Proxy via SAP .Net Proxy

Generator for RFC_Customer_Get

Open Proxy1.cs and change the following line

public void Rfc_Customer_Get(«) to

public virtual void Rfc_Customer_Get («)





Client

DomainA\dennisw

Run Window app and

Call Web Service

Web Service runs under

DomainA\ProcAcct

credential. This account

then calls SAP RFC

1. SAP check

DomainA\ProcAcct in

USRSYSACL

2. SAP check

DomainA\dennisw in

vusrextid

3. SAP check dennisw in

USRACL

4. Run SAP process under

dennisw account

How SAP Single Sign On work

under ASP.Net Web Service





Set up single sign on for web service -

Continue

GSS Library ± Requires on the server where Web Service is

located.

± Copy the GSSNTLM.DLL to c:\windows\system32 ± If the GSSNTLM.DLL was copied to a folder other

then within the environment search path, you needto add the following line in system environmentSNC_LIB=´file path\GSSNTLM.dll´

Make sure to replace the gssapi32.dll with thisGSSNTLM.dll if the old gssapi32.dll exists. Theold gssapi32.dll does not work.




Continue

Create Entry in Table SNCSYSACL via SNC0

This table contains a list of trusted domain accounts or SNC.

Start SAP and run SNC0

Make sure to enable the RFC/CPIC/Ext ID options




Continue

Make sure all users who access SAPwill have their User Accounts inUSRACL or via SU01

Mapping external users into SAPusers

Run SM30 and table VUSREXTID

Value: Work Area=NT. Value: External ID =

MYDomain\dennisw




Continue

Program The Connection String with thefollowing value:

± SNC_MODE=1;

± SNC_PARTNERNAME="p:" +System.Security.Principal.WindowsIdentity.GetCurrent().Name; µ Web Service Process

Account

± EXTIDDATA=User.Identity.Name; µCaller credential

± EXTIDTYPE=³NT´;



Access SAP Web Service via Microsoft

InfoPath

ERPERP ± ± RDBMSRDBMS ± ± HRHR -- CRMCRM

Information WorkersInformation Workers Enterprise ApplicationsEnterprise Applications

XMLXML

WebWeb

ServicesServices

You can use intelligent forms to interact with your existing applications You can use intelligent forms to interact with your existing applications



How does InfoPath 2003 connect to SAP?

Utilize SAP RFC and BAPI.

Generate RFC/BAPI proxy by using SAP .Net Connector

Create Web Service Wrapper around the proxy Hosting/Publish the web service via WSDL

InfoPath Consume the web service



Demo



Resource

SAP .Net Connector: https://websmp103.sap-ag.de/connectors InfoPath 2003 SDK

± Available on microsoft.com under downloads

InfoPath 2003, Technical Webcasts, Technical White Papers, Development

Guides

± MSDN ± http://msdn.microsoft.com/office/understanding/InfoPath 2003/

Visit http://microsoft-sap.com for information on:

± SAP at Microsoft

± SAP .Net Connector

± Upcoming customer workshops

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