ssis - SSIS 脚本组件上的 WATIN - 单线程单元

Question

您好，我需要从具有表单例份验证的站点下载文件，并使用集成服务进一步处理该文本文件。

对于文件下载，我选择使用 WATIN，因此我导入了 Watin 库并编写了浏览器步骤的脚本。但是，当我尝试运行代码时，我收到一 strip 有此消息的异常。

The CurrentThread needs to have it's ApartmentState set to ApartmentState.STA to be able to automate Internet Explorer.

所有这一切都使用 (使用方法属性)

如果我尝试使用这行代码将其设置为 STA

System.Threading.Thread.CurrentThread.SetApartmentState(Threading.ApartmentState.STA)

我得到这个异常

Error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: Failed to set the specified COM apartment state. at System.Threading.Thread.SetApartmentState(ApartmentState state)

如何更改 SSIS 脚本任务以使用此单线程单元？

Answer 1

我通过使用 STA ApartmentState 创建另一个线程解决了这个问题。

代码是这样的:

Private threadDelegate As ParameterizedThreadStart
Private filesdir As String

<STAThread()> _
Public Sub Main()
    Try
        threadDelegate = New ParameterizedThreadStart(AddressOf Me.DoSomething)
        StartBrowserRoutine(threadDelegate)
        Dts.TaskResult = ScriptResults.Success
    Catch
        Dts.TaskResult = ScriptResults.Failure
    End Try
End Sub

Private Sub StartBrowserRoutine(ByVal threadRoutine As ParameterizedThreadStart)
    Dim dialogThread As Thread = New Thread(threadRoutine)
    dialogThread.TrySetApartmentState(ApartmentState.STA)
    dialogThread.Start(Nothing)
    dialogThread.Join(System.Threading.Timeout.Infinite)
End Sub

Private Sub DoSomething()
    'Do Something
End Sub

希望这可以帮助遇到同样问题的人。