在没安装OFFICE的服务器SSIS中进行EXCEL的ETL操作！

由于OFFICE 2010的安装包比较庞大，如果仅仅为了在服务器中实现操作EXCEL，完全没有必要安装整个OFFICE，是否可以不装OFFICE也实现与OFFICE文件的互相操作呢？答案是肯定的，在SSIS中只要安装Microsoft Access 2010 数据库引擎可再发行程序包即可实现2010 Microsoft Office System 文件与非 Microsoft Office 应用程序之间传输数据，支持现有的 Microsoft Office 文件（例如 Microsoft Office Access 2010（*.mdb 和 *.accdb）文件和 Microsoft Office Excel 2010（*.xls、*.xlsx 和 *.xlsb）文件）与其他数据源（例如 Microsoft SQL Server）之间传输数据。还支持与现有文本文件建立连接。 此外，还会安装 ODBC 和 OLEDB 驱动程序，供应用程序开发人员在开发与 Office 文件格式连接的应用程序时使用。该安装包下载地址：http://www.microsoft.com/zh-cn/download/details.aspx?id=13255 。

本人负责年初已上线的BI项目，一部分数据是需要自动采集在Sharepoint 2010上的Excel文档库数据，但SSIS服务器并没有安装OFFICE，就是通过此组件实现互操作！对于简单的EXCEL直接通过数据流的方式实现，对于负责的EXCEL则通过脚本实现，具体如下：

1.简单的EXCEL，数据流的实现方式。









2.负责的EXCEL，主要通过脚本实现。

连接Excel并返回所有SHEET脚本示例如下：

string strConn, ls_pjname = string.Empty,strsqlconn=string.Empty;

strConn = @"Provider=Microsoft.Ace.OleDb.12.0;Data Source="+@as_xlspath+";Extended Properties='Excel 12.0; HDR=NO;IMEX=1'";

OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
DataTable sheetNames = conn.GetOleDbSchemaTable
(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
conn.Close();

对于表内的数据可以通过SQL语句进行，脚本示例如下：

/// <summary>
/// 獲取Excel文件中指定Sheet的內容到DataSet，以Sheet名做DataTable名
/// </summary>
/// <param name="FileFullPath">Excel物理路径</param>
/// <param name="no_HDR">第一行不是標題：true;第一行是標題：false;</param>
/// <param name="SheetName">第一行不是標題：true;第一行是標題：false;</param>
/// <returns>DataSet</returns>
public static DataSet GetExcelToDataSet(string FileFullPath, bool no_HDR, string SheetName)
{
try
{
string strConn = GetExcelConnectionString(FileFullPath, no_HDR);
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
DataSet ds = new DataSet();
OleDbDataAdapter odda = new OleDbDataAdapter(string.Format("SELECT * FROM [{0}]", SheetName), conn);                    //("select * from [Sheet1$]", conn);
odda.Fill(ds, SheetName);
conn.Close();
return ds;
}
catch (Exception ee)
{
throw new Exception(ee.Message);
}
}

通过SSIS可以实现很强大的ETL操作，但前提是根据需求，可能还需要安装一些额外的安装包或组件。

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