SSIS脚本任务获取文件名并存储到SSIS对象变量

Question

我正在尝试构建一个将用于标准化文件系统归档过程的SSIS包.基本上,我将能够将信息添加到配置表,然后使用此表来存档指定文件夹中的某些文件.我的问题是很多文件都有动态命名,所以我需要获取所有文件的列表,然后查询以确定我应该触摸哪些文件.

在尝试编写包的一部分时,不是C#/ VB程序员会导致一些问题,它会抓取指定网络目录中的所有文件,然后将这些文件名反馈回SSIS对象变量.

我有一个字符串变量'User :: SourceNetworkFolderName',它将包含我想要读取所有文件的文件夹的UNC位置.我想将所有这些文件名(带扩展名)传递回名为'User :: SourceFilesInTheDirectory'的SSIS对象变量.一旦我将文件名列表放入对象变量中,我就会将它们循环到SQL表中.

有没有人对如何获取从我的变量目录到我的SSIS对象变量的所有文件名列表有任何具体建议？

先感谢您!

编辑: 这是我更新的代码:

using System;
using System.Data;
using Microsoft.SqlServer.Dts.Runtime;
using System.Windows.Forms;
using System.IO;
using System.Collections.Generic;
using System.Data.SqlClient;

namespace ST_f5e4ae71f14d40d8811af21fa2a9a622.csproj
{
    [System.AddIn.AddIn("ScriptMain", Version = "1.0", Publisher = "", Description = "")]
    public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
    {

        #region VSTA generated code
        enum ScriptResults
        {
            Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
            Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
        };
        #endregion

        public void Main()
        {
        //Setup Connection String to SQL
            SqlConnection SQLConnection = new SqlConnection(
                                       //"user id=username;" +                  //UserName
                                       //"password=password;" +                 //Password
                                       "Trusted_Connection=true;" +             //Windows Auth
                                       "server=SERVERNAME;" +                   //SQL Server
                                       "database=DATABASENAME; " +              //SQL Database
                                       "connection timeout=30;" +               //connection timeout
                                       "Network Library=dbmssocn");             //TCP/IP Connection ("dbnmpntw" = Name Pipes)


        //Open the SQL Connection and remove the error code
            try
            {
                SQLConnection.Open();
            }
            catch (Exception OpenConnectionError)
            {
                Console.WriteLine(OpenConnectionError.ToString());
            }


        //Fetch a list of files from 'SourceNetworkFolderName' SSIS variable to an array called array1.
            string[] ArrayFileName = Directory.GetFiles(Dts.Variables["SourceNetworkFolderName"].Value.ToString());


        //Set up sql variable for table population
            SqlParameter SQLFileNameParam = new SqlParameter("@FileName", SqlDbType.VarChar, 100);


        //Loop through the array and insert into an SQL table
            foreach (string strFileName in ArrayFileName)
            {
            //Update sql variable with file names from array
                SQLFileNameParam.Value = strFileName;
            //Make the table insert
                SqlCommand SQLInsertToTable = new SqlCommand("INSERT INTO Archive_Extract_Network_Folder_File_List (FileName) VALUES (@FileName)", SQLConnection);
            //This snippit allows the use of the variable in the sql script.
                SQLInsertToTable.Parameters.Add(SQLFileNameParam);
            //Execute SqlCommand
                SQLInsertToTable.ExecuteNonQuery();
            //Clear the parameters and set the object to null    
                SQLInsertToTable.Parameters.Clear();
                SQLInsertToTable = null;
            }


        //Close the SQL Connection and remove the error code
            try
            {
                SQLConnection.Close();
            }
            catch (Exception CloseConnectionError)
            {
                Console.WriteLine(CloseConnectionError.ToString());
            }


        //Set array to null since it is no longer required.
            ArrayFileName = null;


        //Exit on success
            Dts.TaskResult = (int)ScriptResults.Success;
        }
    }
}

Answer 1

在脚本中,只需构建一个文件名数组并将该数组设置为您的变量(确保在脚本任务中将变量设置为可写).如果变量是object类型,则可以在后续任务中使用for循环对其进行迭代,并对文件执行任何操作.你不应该只在一个脚本中处理任何奇迹.

将源目录下的所有文件放在数组中:

string[] array1 = Directory.GetFiles(Dts.Variables("SourceNetworkFolderName").Value.ToString());

将所有扩展名为"BIN"的文件放入数组中:

string[] array2 = Directory.GetFiles(Dts.Variables("SourceNetworkFolderName").Value.ToString(), "*.BIN");

您可能需要System.IO在脚本代码的顶部包含.

编辑:

将数组转换为List以供Loop任务处理.调用上面的代码后,请调用:

List<string> fileList = new List<string>(astrTest);
Dts.Variables["SourceFilesInTheDirectory"].Value = fileList;

您需要包含System.Collections.Generic在脚本文件的顶部.