为黄朴整理！！！！！！！！！！！！！！！！！
在NuGet 添加 sapnco
一个简单的SAPCommand，方法 GetDataTableFromRFCTable 复制于 https://www.cnblogs.com/jamin/p/3374139.html
using System; using System.Collections.Generic; using System.Text; using SAP.Middleware.Connector; using System.Data; using System.Linq; namespace Blog.Core.Business.RFC { /// <summary> /// SAPCommand /// </summary> public static class SAPCommand { /// <summary> /// 获取连接SAP参数 /// </summary> /// <returns></returns> private static RfcConfigParameters GetRfcConfigParameters() { RfcConfigParameters pairs = new RfcConfigParameters(); pairs.Add(RfcConfigParameters.Name, "SAP连接名"); pairs.Add(RfcConfigParameters.AppServerHost, "SAP服务器地址"); pairs.Add(RfcConfigParameters.SystemNumber, "00"); pairs.Add(RfcConfigParameters.SystemID, "D01"); pairs.Add(RfcConfigParameters.User, "SAP账号"); pairs.Add(RfcConfigParameters.Password, "SAP密码"); pairs.Add(RfcConfigParameters.Client, "客户端"); pairs.Add(RfcConfigParameters.Language, "en"); pairs.Add(RfcConfigParameters.PoolSize, "5"); pairs.Add(RfcConfigParameters.MaxPoolSize, "10"); pairs.Add(RfcConfigParameters.IdleTimeout, "30"); return pairs; } /// <summary> /// 获取SAP连接 /// </summary> /// <returns></returns> private static RfcDestination GetRfcDestination() { RfcDestination destination = RfcDestinationManager.GetDestination(GetRfcConfigParameters()); return destination; } /// <summary> /// Get SAP Datatable Info /// </summary> /// <param name="rfcFuctionName">SAP Function Module</param> /// <param name="rfcTableName">SAP Function Group</param> /// <param name="keyValues">SAP所需参数</param> /// <returns>DataTable</returns> public static DataTable GetDatatableFromSAP(string rfcFuctionName, string rfcTableName, Dictionary<string, object> keyValues = null) => GetDataSetFromSAP(rfcFuctionName, new List<string> { rfcTableName }, keyValues)[rfcTableName]; /// <summary> /// Get SAP DataSet Info（SAP返回多个表） /// </summary> /// <param name="rfcFuctionName">SAP Function Module</param> /// <param name="rfcTableNameList">SAP Function Groups</param> /// <param name="keyValues">SAP所需参数</param> /// <returns>Dictionary<string ,DataTable></returns> public static Dictionary<string ,DataTable> GetDataSetFromSAP(string rfcFuctionName, List<string> rfcTableNameList, Dictionary<string, object> keyValues = null) { if (string.IsNullOrEmpty(rfcFuctionName) || rfcTableNameList == null || rfcTableNameList.Count <= 0) return null; List<string> rfcTableNames = rfcTableNameList.Distinct().ToList(); try { Dictionary<string, DataTable> result = new Dictionary<string, DataTable>(); Dictionary<string, IRfcTable> rfcTableDic = new Dictionary<string, IRfcTable>(); RfcDestination destination = GetRfcDestination(); IRfcFunction func = destination.Repository.CreateFunction(rfcFuctionName); if (keyValues != null && keyValues.Count > 0) { foreach (var item in keyValues) { func.SetValue(item.Key, item.Value); } } rfcTableNames.ForEach(item => { IRfcTable rfcTable = func.GetTable(item); rfcTableDic.Add(item, rfcTable); }); func.Invoke(destination); rfcTableNames.ForEach(item => { result.Add(item, GetDataTableFromRFCTable(rfcTableDic[item])); }); return result; } catch (Exception ex) { throw ex; } } /// <summary> /// 转换IRfcTable为Datatable /// </summary> /// <param name="myrfcTable"></param> /// <returns></returns> private static DataTable GetDataTableFromRFCTable(IRfcTable myrfcTable) { DataTable loTable = new DataTable(); int liElement = 0; 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; } } }