用于自动化的SSIS C#脚本任务

我有一个SSIS包，它以一个脚本任务开始，以检查指定目录是否包含三个文件。如果有2个文件，它会打印警告；如果有1个或更少的文件，我会打印错误消息并终止程序。其思想是SQL代理将注册我的包并在指定的时间执行它。但是，我的脚本中必须满足以下条件：

switch (numFiles)
            {
                case 0:
                    MessageBox.Show("Error: No files are in the directory C:\\Directory1\n Please restart execution.");
                    break;
                case 1:
                    MessageBox.Show("Error: Only one file was found in the directory C:\\Directory1\n Please restart execution.");
                    break;
                case 2:
                    MessageBox.Show("Warning: Only two files have been loaded into the directory C:\\Directory1\n Is this intended?.");
                    break;
            }

如何优雅地终止程序并打印警告消息？

---

在服务器上运行时，如何显示此消息？

在服务器上运行时，不能显示这样的消息框

您应该写入日志文件（）

要停止从脚本任务运行的包，请使用

RunningPackage.stop

方法

        static void Main(string[] args)
        {
            Application app = new Application();
            RunningPackages pkgs = app.GetRunningPackages("yourserver");

            int pkgsRunning = pkgs.Count;
            Console.WriteLine("Packages before stop: thas + pkgsRunning);

            foreach (RunningPackage p in pkgs)
            {
                Console.WriteLine("InstanceID: " + p.InstanceID);
                Console.WriteLine("PackageDescription: " + p.PackageDescription);
                Console.WriteLine("PackageID: " + p.PackageID);
                Console.WriteLine("PackageName: " + p.PackageName);
                Console.WriteLine("UserName: " + p.UserName);
            }

            pkgs = app.GetRunningPackages("yourserver");
            foreach (RunningPackage package in pkgs)
            {
                package.Stop();
            }

            pkgsRunning = app.GetRunningPackages("yourserver").Count;
            Console.WriteLine("Packages after stop " + pkgsRunning);
        }

---

我想，你最好还是挂上现有的网络。使用您的代码作为基线，我在包中添加了一个变量，然后部署到SQLServer中

        int numFiles = Convert.ToInt32(Dts.Variables["numFiles"].Value.ToString());
        switch (numFiles)
        {
            case 0:
                //MessageBox.Show("Error: No files are in the directory C:\\Directory1\n Please restart execution.");
                Dts.Events.FireError(0, "File count", "Error: No files are in the directory C:\\Directory1\n Please restart execution.", string.Empty, 0);
                break;
            case 1:
                //MessageBox.Show("Error: Only one file was found in the directory C:\\Directory1\n Please restart execution.");
                Dts.Events.FireError(0, "File count", "Error: Only one file was found in the directory C:\\Directory1\n Please restart execution.", string.Empty, 0);
                break;
            case 2:
                //MessageBox.Show("Warning: Only two files have been loaded into the directory C:\\Directory1\n Is this intended?.");
                Dts.Events.FireWarning(0, "File count", "Warning: Only two files have been loaded into the directory C:\\Directory1\n Is this intended?.", string.Empty, 0);
                break;
        }

从命令行运行

"DTExec.exe" /file /set .\so_RaiseEvents.dtsx /set \Package.Variables[User::numFiles];0

"DTExec.exe" /file /set .\so_RaiseEvents.dtsx /set \Package.Variables[User::numFiles];1

"DTExec.exe" /file /set .\so_RaiseEvents.dtsx /set \Package.Variables[User::numFiles];2

我看到了预期的产出

Error: 2012-08-09 08:53:58.77
   Code: 0x00000000
   Source: Script Task File count
   Description: Error: No files are in the directory C:\Directory1
 Please restart execution.
End Error

Error: 2012-08-09 08:51:56.75
   Code: 0x00000000
   Source: Script Task File count
   Description: Error: Only one file was found in the directory C:\Directory1
 Please restart execution.
End Error

Warning: 2012-08-09 08:51:51.82
   Code: 0x00000000
   Source: Script Task File count
   Description: Warning: Only two files have been loaded into the directory C:\Directory1
 Is this intended?.
End Warning

当您从代理运行时，警告应该显示，但如果没有显示，则需要向报告添加一个参数，以便

/report W

编辑 为了解决这些问题

“如何优雅地终止程序并打印警告消息”FireError将导致脚本任务返回失败代码

Microsoft.SqlServer.Dts.Runtime.dtseSecResult.Success

，从而结束包的执行。警告，如果您想停止包执行，那么您将修改脚本任务以指示它没有成功。为此，我添加了第三个ScriptResult警告枚举，该枚举被转换为.cancelled（唯一一个传达了与计划不符的内容的选项）。完整代码如下

[Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
{


    /// <summary>
    /// This method is called when this script task executes in the control flow.
    /// Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.
    /// To open Help, press F1.
    /// </summary>
    public void Main()
    {
        int numFiles = Convert.ToInt32(Dts.Variables["numFiles"].Value.ToString());
        switch (numFiles)
        {
            case 0:
                //MessageBox.Show("Error: No files are in the directory C:\\Directory1\n Please restart execution.");
                Dts.Events.FireError(0, "File count", "Error: No files are in the directory C:\\Directory1\n Please restart execution.", string.Empty, 0);
                break;
            case 1:
                //MessageBox.Show("Error: Only one file was found in the directory C:\\Directory1\n Please restart execution.");
                Dts.Events.FireError(0, "File count", "Error: Only one file was found in the directory C:\\Directory1\n Please restart execution.", string.Empty, 0);
                break;
            case 2:
                //MessageBox.Show("Warning: Only two files have been loaded into the directory C:\\Directory1\n Is this intended?.");
                Dts.Events.FireWarning(0, "File count", "Warning: Only two files have been loaded into the directory C:\\Directory1\n Is this intended?.", string.Empty, 0);
                Dts.TaskResult = (int)ScriptResults.Warning;
                break;
            default:
                Dts.TaskResult = (int)ScriptResults.Success;
                break;
        }

    }

    /// <summary>
    /// This enum provides a convenient shorthand within the scope of this class for setting the
    /// result of the script.
    /// 
    /// This code was generated automatically.
    /// </summary>
    enum ScriptResults
    {
        Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
        Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure,
        Warning = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Canceled,
    };

}

[Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
公共部分类ScriptMain:Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
{
/// 
///在控制流中执行此脚本任务时调用此方法。
///从该方法返回之前，请设置Dts.TaskResult的值以指示成功或失败。
///要打开“帮助”，请按F1。
/// 
公共图书馆
{
int numFiles=Convert.ToInt32（Dts.Variables[“numFiles”].Value.ToString（））；
开关（numFiles）
{
案例0：
//MessageBox.Show（“错误：目录C:\\Directory1\n请重新启动执行。”）；
Dts.Events.firererror（0，“文件计数”，“错误：目录C:\\Directory1\n请重新启动执行。”，string.Empty，0）；
打破
案例1：
//MessageBox.Show（“错误：在目录C:\\Directory1\n请重新启动执行中仅找到一个文件”）；
Dts.Events.FireError（0，“文件计数”，“错误：在目录C:\\Directory1\n请重新启动执行”中只找到一个文件”，string.Empty，0）；
打破
案例2：
//MessageBox.Show（“警告：只有两个文件已加载到目录C:\\Directory1\n这是预期的吗？）；
Dts.Events.FireWarning（0，“文件计数”，“警告：只有两个文件已加载到目录C:\\Directory1\n这是预期的吗？”，string.Empty，0）；
Dts.TaskResult=（int）ScriptResults.Warning；
打破
违约：
Dts.TaskResult=（int）ScriptResults.Success；
打破
}
}
/// 
///这个枚举在这个类的范围内提供了一个方便的速记来设置
///脚本的结果。
/// 
///此代码是自动生成的。
/// 
枚举脚本结果
{
Success=Microsoft.SqlServer.Dts.Runtime.dtsesecresult.Success，
Failure=Microsoft.SqlServer.Dts.Runtime.dtsesecresult.Failure，
警告=Microsoft.SqlServer.Dts.Runtime.dtsesecresult.cancelled，
};
}

似乎您希望有人在监视和响应程序包的运行。通常，这不是您希望SSI做的事情。它可以做这些事情，您可以有一个messagebox提示符来发现用户是否希望继续，但当它在服务器上运行时，该包将无法通过验证检查，因为它将发现它没有在交互模式下运行。这比DTS要好得多，因为人们会在服务器上留下消息框，并且由于没有人定期登录服务器，包会挂几个星期。如果需要同时为两个主机（有人值守和无人值守运行）提供服务，请使用System:：InteractiveMode变量，以便在无人值守运行期间不尝试显示UI代码

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在我看来，一个更好的选择是保持事件的触发如上所述，以便它在自动化环境中运行良好。然后，对于手动执行，为运行作业提供一个轻量级的.NET包装器。把文件检查也转移到这一点上。是的，工作会重复，但ETL和UI代码的分离会更清晰。

您希望如何打印消息<代码>MessageBox.Show将在visual studio中弹出，但在服务器上执行时会弹出。是的，这是我要做的事情之一。在服务器上运行此消息时，如何显示此消息？是否可以选择登录表？另一个选择是发送邮件。我只想停止某个包的运行。