C# 调用SAP RFC

结构：

安装NuGet包：

using SAP.Middleware.Connector;using System.Data;namespace DFDN.SDK.ServiceInterface{    public class RfcDemo    {        public void Loading()        {            RfcDestination SapRfcDestination = RfcDestinationManager.GetDestination(GetParameters()); //连接字符串            RfcDestination SapRfcDestinationForConfig = RfcDestinationManager.GetDestination("dad"); //连接字符串 从App.config配置            RfcRepository SapRfcRepository = SapRfcDestination.Repository;            DataTable dt = new DataTable();  //数据源            dt.Columns.Add("DATA1", typeof(string));            dt.Columns.Add("DATA2", typeof(string));            dt.Columns.Add("DATA3", typeof(string));            IRfcFunction func = SapRfcRepository.CreateFunction("Z_RFC_XXXX");            IRfcTable tSAP = func.GetTable("INPUT_TABLE");            for (int i = 0; i < dt.Rows.Count; i++)            {                string str1 = dt.Rows[i][0].ToString();                string str2 = dt.Rows[i][1].ToString();                string str3 = dt.Rows[i][2].ToString();                IRfcStructure struSAP = tSAP.Metadata.LineType.CreateStructure();                struSAP.SetValue("str1", str1);                struSAP.SetValue("str2", str2);                struSAP.SetValue("str3", str3);                tSAP.Append(struSAP);            }            func.SetValue("INPUT_TABLE", tSAP); //table 参数            func.SetValue("WERKS", "A");        //单个参数                func.SetValue("STATUS", "B");    //单个参数            func.Invoke(SapRfcDestination); //调用            IRfcTable SAPDataTable = func.GetTable("RETURN_TABLE"); //获取表格结果            DataTable table = ToDataTable(SAPDataTable);  //转换DataTable            string result = func.GetValue("X").ToString(); //获取指定返回结果        }        /// <summary>        /// RfcTable 转换为 DataTable        /// </summary>        /// <param name="myrfcTable"></param>        /// <returns></returns>        public DataTable ToDataTable(IRfcTable myrfcTable)        {            DataTable loTable = new DataTable();            int liElement;            for (liElement = 0; liElement <= myrfcTable.ElementCount - 1; liElement++)            {                RfcElementMetadata metadata = myrfcTable.GetElementMetadata(liElement);                loTable.Columns.Add(metadata.Name);            }            foreach (IRfcStructure Row in myrfcTable)            {                DataRow ldr = loTable.NewRow();                for (liElement = 0; liElement <= myrfcTable.ElementCount - 1; liElement++)                {                    RfcElementMetadata metadata = myrfcTable.GetElementMetadata(liElement);                    ldr[metadata.Name] = Row.GetString(metadata.Name);                }                loTable.Rows.Add(ldr);            }            return loTable;        }        /// <summary>        /// SAP RFC 连接信息设置        /// </summary>        /// <returns></returns>        public RfcConfigParameters GetParameters()        {            RfcConfigParameters parms = new RfcConfigParameters();            parms.Add(RfcConfigParameters.AppServerHost, "192.168.0.114");   //SAP主机IP            parms.Add(RfcConfigParameters.SystemNumber, "01");  //SAP实例            parms.Add(RfcConfigParameters.User, "RFC_EDI");  //用户名            parms.Add(RfcConfigParameters.Password, "init1");  //密码            parms.Add(RfcConfigParameters.Client, "300");  // Client             parms.Add(RfcConfigParameters.Language, "ZH");  //登陆语言            parms.Add(RfcConfigParameters.PoolSize, "10");            parms.Add(RfcConfigParameters.IdleTimeout, "600");            parms.Add(RfcConfigParameters.Name, "DAP");            return parms;        }     }}

<?xml version="1.0"?><configuration>  <configSections>    <sectionGroup name="SAP.Middleware.Connector">      <sectionGroup name="ClientSettings">        <section name="DestinationConfiguration" type="SAP.Middleware.Connector.RfcDestinationConfiguration,sapnco"/>      </sectionGroup>    </sectionGroup>  </configSections>  <SAP.Middleware.Connector>    <ClientSettings>      <DestinationConfiguration>        <destinations>          <add NAME="dad" USER="ddac" PASSWD="qwe" CLIENT="110" SYSNR="00" ASHOST="192.168.0.111" LANG="ZH" GROUP="PUBLIC" MAX_POOL_SIZE="10" IDLE_TIMEOUT="600"></add>        </destinations>      </DestinationConfiguration>    </ClientSettings>  </SAP.Middleware.Connector></configuration>