如何创建一个包,将所有文件从给定文件夹复制到新文件夹中?
我有一个名为“Data”的文件夹,其中包含文件名中包含当前日期的所有文件,例如“myfile 20-08-2011”。现在我想创建一个 SSIS 包,它收集 08 月份的所有文件,即,我想按月整理文件并将这些文件复制到名为“august”的新文件夹中。我怎样才能做到这一点?
I have one folder called 'Data' that contains all files with current date in filename like for example 'myfile 20-08-2011'. Now I want to create an SSIS package which collects all files which are from the month 08, that is, I want to sort out files by month wise and copy those files into a new folder called "august". How can I do that?
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下面是一种可能的解决方案,可以借助 Foreach 循环容器、脚本任务和文件系统任务来实现此目的。您可以在没有文件系统任务的情况下执行此操作。但是,我用它来利用内置的控制流任务来移动文件。该示例是使用
SSIS 2005
创建的。该示例假设文件将被统一命名。因此,该示例使用文件 DD-MM-YYYY 格式。例如,文件将命名为
File 29-07-2011
、File 15-08-2011
等。在 SSIS 包上,创建以下变量。在此示例中,源文件存储在文件夹位置
F:\Temp\
中,并且文件应移动到位置 *F:\Temp\Monthwise*。在目标文件夹中,每个月都会有文件夹,例如 7 月、8 月等。DestinationFolder 变量将保存最终的目标文件夹值,例如
F:\Temp\Monthwise\August< /code> 但该变量将被分配脚本任务中的实际值。现在,我们分配值
F:\Temp\Monthwise\
。此临时值是为了避免文件系统任务在设计时抛出错误消息。DestinationRoot 将包含实际的根文件夹,应根据月份名称在该根文件夹下创建“七月”、“八月”等文件夹。
SourceFolder 表示最初存储所有文件的文件夹。在此示例中,源文件夹将为
F:\Temp\
SourceFilePath 表示实际文件路径。当 Foreach 循环容器循环访问每个变量时,将为该变量分配各个文件值。为了避免文件系统任务在设计时抛出错误消息,我们为其分配一些虚拟值
F:\Temp\1.txt
。FilePattern 定义应在给定源文件夹路径中循环的文件模式。让我们分配
*.*
,这意味着所有文件都将被循环遍历。您还可以指定*.txt
或File*.txt
或My*.xls
等。这取决于您的要求。MonthStartPosition 表示月份值在文件名中开始的位置。因此,在文件名格式
File 29-07-2011
中,月份 07 从第 9 个字符开始。因此值 9。MonthLength 指定要提取的字符数。无论如何,这都是 2 个字符,但我不想硬编码。因此,我创建了一个变量。
MonthNameFormat 指定如何创建文件夹。值 MMMM 表示它将创建具有完整月份名称的文件夹,如一月、二月等。如果我们使用值 MMM,文件夹将创建为一月、二月等。仅当文件夹不存在时才会创建文件夹。
在 SSIS 包的控制流选项卡上,放置一个
Foreach 循环容器 并将其配置为使用文件模式变量
FilePattern
循环遍历变量SourceFolder
中指定的文件夹。当 Foreach 循环容器循环访问文件时,文件名将被分配给变量 SourceFilePath。我们将使用此变量来获取脚本任务中的月份值。在 Foreach 循环容器中,放置一个
脚本任务 和在脚本任务的脚本部分,单击设计脚本...按钮以打开 VSTA 编辑器并粘贴这些屏幕截图后提供的代码。由于该示例是在 VS 2005 中创建的,因此代码是用 VB.NET 编写的,因为这是
SSIS 2005
中唯一支持的语言。脚本任务代码: 代码获取完整文件路径值从变量
SourceFilePath
并仅提取文件名并将其存储在本地变量FileName
中。然后检查是否为
MonthStartPosition
和MonthLength
变量分配了正确的非零值。然后,它提取月份值并将其存储在本地变量MonthValue
中。通过
MonthValue
,它使用 DateTime 函数获取完整的月份名称值。值 1 分配给日和年,因为我们只需要月份名称。局部变量 FolderName 中的月份名称与 DestinationRoot 值相结合来检查文件夹是否存在。如果该文件夹不存在,将创建该文件夹,以便文件系统任务不会失败。
最后,完整的目标文件夹值被分配给包变量
DestinationFolder
。该变量将在文件系统任务中使用。SSIS 2005 的 VB.NET 代码
SSIS 2008 及更高版本的 C# 代码
在 Foreach 循环容器中,放置 < em>文件系统任务位于脚本任务之后。配置文件系统任务,如屏幕截图所示。
配置包任务后,“控制流”选项卡应如下所示。
让我们测试一下该包。在此之前,源文件夹F:\Temp 的内容如下所示。这些文件是虚拟的。因此,大小为 0 KB。
下面的屏幕截图显示了包的成功执行。
下面的屏幕截图显示了如何将文件移动到根据月份名称创建的相应目标文件夹中。各个文件夹的内容如下所示。
希望有帮助。
Here is one possible solution to achieve this with the help of
Foreach loop container
,Script Task
andFile System Task
. You can do this without File System Task. However, I have used it to make use of the in-built control flow task to move the files. The example was created usingSSIS 2005
.The example assumes that the files will be named uniformly. So, the example uses the format File DD-MM-YYYY. For example, the files will be named
File 29-07-2011
,File 15-08-2011
etc.On the SSIS package, create the following variables. In this example, the source files are stored in the folder location
F:\Temp\
and the files should be moved to the location *F:\Temp\Monthwise*. Within the destination folder, there will be folders for each month like July, August etc.DestinationFolder variable will hold the final destination folder value like
F:\Temp\Monthwise\August
but this variable will be assigned with the actual value inside the Script task. For now, let's assign the valueF:\Temp\Monthwise\
. This temporary value is to avoid File System Task from throwing error messages at design time.DestinationRoot will contain the actual root folder under which the folders like July, August should be created based on the month names.
SourceFolder denotes the folder in which all the files are initially stored. Here in this example, the source folder will be
F:\Temp\
SourceFilePath denotes the actual file path. This variable will be assigned with the individual file values when the Foreach loop container loops through each variable. To avoid the File System Task from throwing error messages at design time, let's assign it with some dummy value
F:\Temp\1.txt
.FilePattern defines the file pattern that should be looped through in the given source folder path. Let's assign
*.*
, which means all the files will be looped through. You can also specify*.txt
orFile*.txt
orMy*.xls
etc. It is upto your requirements.MonthStartPosition denotes the position where the month value starts in the file name. So, in the file name format
File 29-07-2011
, the month 07 starts at 9th character. Hence the value 9.MonthLength specifies the number of character to extract. This will anyways be 2 characters but I didn't want to hard code. So, I created a variable.
MonthNameFormat specifies how the folders should be created. Value MMMM denotes that it will create the folders with full month names like January, February etc. If we use the value MMM, the folders will be created as Jan, Feb etc. The folders will be created only if they didn't exist.
On the SSIS package's Control Flow tab, place a
Foreach loop container
and configure it to loop through the folder specified in the variableSourceFolder
using the file pattern variableFilePattern
. As the Foreach loop container loops through the files, the file names will be assigned to the variable SourceFilePath. We will use this variable to fetch the month value in Script Task.Within the Foreach loop container, place a
Script Task
and on the script task's Script section click the Design script... button to open the VSTA editor and paste the code provided after these screenshots. Since the example was created in VS 2005, the code is written in VB.NET because that is the only supported language inSSIS 2005
.Script Task Code: The code gets the full file path value from the variable
SourceFilePath
and extracts only the file name to store it in the local variableFileName
.Then checks to see if the
MonthStartPosition
andMonthLength
variables are assigned with proper non-zero values. It then extracts the month value to store it in the local variableMonthValue
.Uisng the
MonthValue
, it fetches the full month name value using the DateTime function. The values 1 are assigned to day and year because we only want the Month name.The month name in the local variable FolderName is combined with the DestinationRoot value to check if the folder exists or not. If the folder doesn't exist, the folder will be created so that the File System Task doesn't fail.
Finally the full destination folder value is assigned to the package variable
DestinationFolder
. This variable will be used in the File System Task.VB.NET code for SSIS 2005
C# code for SSIS 2008 and above
Within the Foreach loop container, place File System Task after the Script task. Configure the File System Task as shown in the screenshot.
Once the package tasks are configured, the Control Flow tab should look like as shown below.
Let's test the package. Before that, the contents of the source folder F:\Temp are shown below. The files are dummy. Hence, the size 0 KB.
Below screenshot shows the successful execution of the package.
Below screenshots show how the files have been moved to respective destination folder that have been created based on the month names. Contents of the individual folders are shown below.
Hope that helps.