从WCF服务执行SSIS包

Question

我正在尝试从WCF服务执行SSIS包，我正在使用method(RunPackage(input1, input2))初始化SSIS变量。

• 输入1：Excel文件的路径，
• 输入2：包路径

当我在IIS上部署WCF并使用Web服务调用方法(RunPackage(input1, input2))时，我收到包失败的消息。

WCF和SSIS包位于Server1（DB服务器），Excel位于Sever2。 Server2可以访问Server1

以下是我在WCF中的RunPackage方法中的代码

    strXLPath = @"\\Server1\Excel1.xlsx";
    strPackagePath = @"E:\Package.dtsx";

    public static string RunPackage(string strXLPath, string strPackagePath)
    {
        string strResult = "Fail";

        try
        {
            Package pkg;
            Application app;
            DTSExecResult pkgResults;                
            //Microsoft.SqlServer.Dts.Runtime.Configuration cnfg;

            strPackagePath = strPackagePath.Replace("E:", "\\\\Server2");
            //Check if Excel exists
            System.IO.FileInfo fiXlFile = new System.IO.FileInfo(strXLPath);
            System.IO.FileInfo fiPkgFile = new System.IO.FileInfo(strPackagePath);

            //Impersonate.ImpersonateUser("Domain", "UserID", "PWD");
            if (fiXlFile.Exists)
            {
                strResult = "XL Exists";
                if (fiPkgFile.Exists)
                {
                    strResult = "Package Exists";                       
                    #region Call package as application

                    app = new Application();
                    pkg = app.LoadPackage(strPackagePath, null);

                    Variables pkgVars = pkg.Variables;
                    string excelpath = "";

                    #endregion

                    #region Package variables Initi
                    foreach (Variable pkgVar in pkgVars)
                    {
                        if (!pkgVar.SystemVariable)
                        {
                            if (pkgVar.Name == "ConnStr")
                            {
                                                                               pkgVar.Value = "Data Source=Server2;User ID=UserId;Initial Catalog=DBName;password=Password;Provider=SQLNCLI10.1;Persist Security Info=True;Auto Translate=False;";                                         
                            }
                            else
                                if (pkgVar.Name == "Excel_Path")
                                {
                                    pkgVar.Value = strXLPath;
                                    excelpath = pkgVar.Value.ToString();
                                }
                        }
                    }
                    #endregion

                    #region Run Package                                               
                    pkgResults = pkg.Execute();

                    Console.WriteLine(pkgResults.ToString());

                    strResult = "Package" + pkgResults.ToString();

                    #endregion                       
                }
                else
                {
                    strResult = "Package doesnt exists.";
                }
            }
            else
            {
                strResult = "XL doesnt exists";
            }
            //Impersonate.UndoImpersonation();
            return strResult;
        }
        catch (Exception)
        {
            return strResult = "Error In method";
        }
    }        
}

请帮帮我。