1. 2014/3/3 Howard

2.  SAP
 是歐洲最大的軟體企業，世界上最大的商業應用、企業資源規劃（ERP）解決方案和獨立軟體
的供應商，在全球企業應用軟體的市場佔有率高達三成以上
 總部設於德國沃爾多夫。
 德文：Systeme, Anwendungen und Produkte in der Datenverarbeitung
 英文：systems applications and Products in Data Processing
 通常 SAP 指的是 SAP 提供的 ERP 系統 ( SAP R/3 )

3.  是一個基於客戶/服務機結構和開放系統的、集成的企業資源計劃系統 ( ERP )。
 其功能覆蓋企業的財務、後勤（工程設計、採購、庫存、生產銷售和質量等）和人力資源管理、
SAP業務工作流系統以及因特網應用鏈接功能等各個方面。
 SAP R/3 is architecture of ：
 database
 functional module
 client graphical user interface (GUI)
 respective hardware components

5.  RFC（Remote Function Call，遠程功能調用）
 是SAP系統之間以及SAP與外部系統之間程序通信的基本接口技術，諸多其他更高層的SAP接
口和通信技術，如BAPI、ALE等，都是基於RFC實現的。
 SAP所提供的外部接口包括：
 程序通信接口（communication interface）、
 文件I/O接口（file I/O interface）
 數據接口（data interface）。
 RFC位於程序通信接口中，以實現外部程序對 SAP
系統內部數據的訪問

7.  SAP .NET Connector 3.0 is the current version of SAP's development environment
for communication between the Microsoft .NET platform and SAP systems.
 This connector supports RFCs and Web services. It allows you to write different
applications such as Web form, Windows form, or console applications in the
Microsoft Visual Studio.Net.
 With the SAP .NET Connector, you can use all common programming languages,
such as Visual Basic. NET, C#, or Managed C++.

8.  Using the SAP .NET Connector you can:
 Write .NET Windows and Web form applications that have access to SAP business objects
(BAPIs).
 Develop client applications for the SAP Server.
 Write RFC server applications that run in a .NET environment and can be installed
starting from the SAP system.

10.  Install SAPDotNetConnector3 nuget package
 The SAP .Net Connector is a set of libraries that handle connections and abstractions between
.Net Framework code and SAP BAPIs and RFCs.
 Add reference：System.Web
 Prepare Connection Settings
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Name
AppServerHost
SystemNumber
Client
User
Password
Language

11.  Create RfcConfigParameters
public class RfcConfigParameters : Dictionary<string, string>
RfcConfigParameters configParams = new RfcConfigParameters();
configParams.Add(RfcConfigParameters.Name, opt.GetOptionArg("AppServerHost"));
configParams.Add(RfcConfigParameters.AppServerHost, opt.GetOptionArg("AppServerHost"));
configParams.Add(RfcConfigParameters.SystemNumber, opt.GetOptionArg("SystemNumber"));
configParams.Add(RfcConfigParameters.Client, opt.GetOptionArg("Client"));
configParams.Add(RfcConfigParameters.User, opt.GetOptionArg("User"));
configParams.Add(RfcConfigParameters.Password, opt.GetOptionArg("Password"));
configParams.Add(RfcConfigParameters.Language, opt.GetOptionArg("Language"));

12.  Create RfcDestination
RfcDestination rfcdest = RfcDestinationManager.GetDestination(configParams);
 Get RfcRepository
RfcRepository rfcRepo = rfcdest.Repository;
 Invoke RFC
IRfcFunction personoutoaFun = null;
personoutoaFun = rfcRepo.CreateFunction("ZOA_CALLSAP_RFC_NAME");
personoutoaFun.Invoke(rfcdest);
 Get RFC Table
IRfcTable personTable = personoutoaFun.GetTable(“OUTPUT_TABLE_NAME");

13.  Convert RFC Table To Data Table

14.  Wrapper library for the SAP .Net Connector 3.0.
 Adapts existing api to a more friendly form for the .Net developers.
 NSAPConnector tries to emulate an ADO.Net behavior and usage which is the most
common way of dealing with database data in the .Net world.
 NuGet
 NSAPConnector_x86
 NSAPConnector_x64

15.  有 input, output 資料夾
 填寫 Request XML 參數，放到 input 資料夾中，
 稍等幾分鐘，output 資料夾會產生 Response XML，即查詢結果

16.  http://www.thewireframecommunity.com/node/194
 http://zh.wikipedia.org/wiki/SAP_R/3
 http://www.sunchis.com/html/sap/2010/0504/153.html
 https://github.com/ion-sapoval/NSAPConnector/blob/master/README.md