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C# 通過SAP提供COM組件進行SAP數據的訪問
步驟:
1. 新建C#工程
2. 在菜單中點擊“Project”--〉“Add Reference” ,在彈出窗口的COM列表中選擇SAP Component 組件
3.用SAPLogonCtrl 組件進行SAP的連接
4.連接后以SAPFunctionsOCX 進行SAP的 RFC Function的調用,傳入Function的Import 、Export Parameters,及Table Parameters
執行后以SAPTableFactoryCtrl 接收返回Table數據(注意此表數據無法直接賦予C#之DataTable)需自定義轉換函數
對於SAP之COM尚未深入了解,目前只能進行簡單數據的讀取,對於未能通過SAP以定義Function取得之數據,可在SAP中自定義Function來進行,注意自定義之Function 之 “Processing Type” 需選擇 “Remote Function Call Supported“ ,否則無法進行遠程使用。
以下為CODE:
public void LoginSAP()
{ SAPLogonCtrl.SAPLogonControlClass logon = new SAPLogonCtrl.SAPLogonControlClass(); logon.ApplicationServer = "IPadress"; //SAP系统IP logon.Client = "**"; //SAP客户端号 logon.Language = "ZF"; //SAP登陆语言 logon.User = "**"; //用户帐号 logon.Password = "**"; //用户密码 logon.SystemNumber = *; //SAP系统编号 SAPLogonCtrl.Connection Conn = (SAPLogonCtrl.Connection)logon.NewConnection(); if (Conn.Logon(0, true))
{ //登陆成功 } else { ; //登陆失败 } /// 调用SAP系统函数模块 /// </summary> /// <param name="strFunName">函数名称</param> /// <param name="strArgs">输入参数字典</param> /// <param name="strRetTabs">返回表结果字典</param> /// <param name="strResult">返回程序运行结果</param> /// <returns>返回表结果集</returns> ListDictionary strArgs = new ListDictionary() ;
ListDictionary strRetTabs = new ListDictionary(); ListDictionary strResult = new ListDictionary(); string strFunName="RFC_CUSTOMER_GET"; object customs= new object(); strArgs.Add("KUNNR","*"); strArgs.Add("NAME1","*"); strRetTabs.Add("CUSTOMER_T",customs); try
{ DataSet retDST = new DataSet(); string[] array = new string[strResult.Count]; strResult.Keys.CopyTo(array, 0); SAPFunctionsOCX.SAPFunctionsClass func = new SAPFunctionsOCX.SAPFunctionsClass(); func.Connection = Conn;
//(1) SAPFunctionsOCX.IFunction ifunc = (SAPFunctionsOCX.IFunction)func.Add(strFunName); //调用函数模块 foreach (string arg in strArgs.Keys) { SAPFunctionsOCX.IParameter gclient = (SAPFunctionsOCX.IParameter)ifunc.get_Exports(arg); //取得输入参数 string sssdfd=strArgs[arg].ToString(); gclient.Value = strArgs[arg]; //设置参数值 } ifunc.Call(); //调用函数模块 //(2) foreach (string ret in array) { SAPFunctionsOCX.IParameter NUMBER = (SAPFunctionsOCX.IParameter)ifunc.get_Imports(ret); //返回程序运行结果 strResult[ret] = NUMBER.Value; } //(3) SAPTableFactoryCtrl.Tables ENQs = (SAPTableFactoryCtrl.Tables)ifunc.Tables; //获取所有Tables // MessageBox.Show(ifunc.); foreach (string tab in strRetTabs.Keys) { SAPTableFactoryCtrl.Table ENQ = (SAPTableFactoryCtrl.Table)ENQs.get_Item(tab); //返回指定Tables // MessageBox.Show(ENQ.RowCount.ToString()); //MessageBox.Show(ENQ.ColumnCount.ToString()); //MessageBox.Show(ENQ.get_ColumnName(5)); //dataGrid1.DataSource=dat.Tables[0].DefaultView; DataSet dat = CoverTable(ENQ) ;
dataGrid1.SetDataBinding(dat,"TSIS_route"); func.RemoveAll(); Conn.Logoff(); } }
catch (Exception exc) { throw (new Exception(exc.Message)); } }
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