public bool GetFiles(string equipName)
    {
      //choose all sheet? or all data in sheet?
      string strExcel = "select * from [Sheet1$]";
      //初始化system.IO的配置（路徑)
      DirectoryInfo directoryInfo1 = new DirectoryInfo(WPath + equipName + "\\Working");
      //用文件流來獲取文件夾中所有文件，存放到
      FileInfo[] files1 = directoryInfo1.GetFiles();
      foreach (FileInfo file in files1) // Directory.GetFiles(srcFolder)
      {
        // 連接到excel 數(shù)據(jù)源,  xlsx要用ACE
        string strConn = ("Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source= " + file.FullName + "; Extended Properties='Excel 12.0';");
        OleDbConnection OledbConn = new OleDbConnection(strConn);
        if (IsUsed(file.FullName))
        {
          flag = IsUsed(file.FullName);

          continue;
        }
        try
        {
          OledbConn.Open();
          // 存入datatable
          OleDbDataAdapter dAdapter = new OleDbDataAdapter(strExcel, strConn);　　　　　　　　　　　　//寫入ds中的一個table
          dAdapter.Fill(ds);
          OledbConn.Dispose();
          OledbConn.Close();
        }
        catch (Exception ex)
        {

        }
      }
    }

using System.IO;
using System.Data;
using System.Configuration;
using System.ServiceProcess;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Timers;using System;

namespace DataCollection_model_HD
{
  public partial class Service1 : ServiceBase
  {
    public Service1()
    {

      InitializeComponent();
      InitTimer();
    }
    #region 各種配置的全局定義
    //定義一個dataset 用于暫時存放excel中的數(shù)據(jù),后續(xù)要存入datatable
    DataSet ds = new DataSet();
    Timer TimModel = new Timer();

    public static string LogPath = ConfigurationManager.AppSettings["LogPath"].ToString();
    public static string WPath = ConfigurationManager.AppSettings["WorkingPath"].ToString();
    public static string APath = ConfigurationManager.AppSettings["ArchivePath"].ToString();
    //數(shù)據(jù)庫登錄
    //注意Integrated Security不寫（false）表示必須要用pwd登錄，true表示不用密碼也能進入數(shù)據(jù)庫
    public static string ConnStr = ConfigurationManager.AppSettings["ConnStr"].ToString();
    //用于記錄log的時候，機臺名字
    public static string machineName = "test";
    #endregion
    #region 定時器的初始化，及其事務(wù)
    //這個按鈕用于模擬服務(wù)(定時器）啟動
    public void InitTimer()
    {
      //DFL的定時器 
      TimModel.Interval = 15 * 1000;
      //定時器的事務(wù)
      TimModel.Elapsed += new ElapsedEventHandler(ElapsedEventDFL);
      TimModel.Enabled = true;
      TimModel.AutoReset = true;
    }
    private void ElapsedEventDFL(object source, ElapsedEventArgs e)
    {
      
      if (GetFiles("test"))
      {
        //多次讀取數(shù)據(jù)，存在多個文件時但其中某個文件在使用的bug
        ds.Tables.Clear();
        Log4App.WriteLine(" ---- End the collect ! ----", LogPath, machineName, System.Threading.Thread.CurrentThread.ManagedThreadId.ToString(), Log4AES.Type.Information);
      }
      else
      {
        DataToSql("test");
        BackupData("test");
        Log4App.WriteLine(" ---- End the collect ! ----", LogPath, machineName, System.Threading.Thread.CurrentThread.ManagedThreadId.ToString(), Log4AES.Type.Information);
      }
      
    }
    #endregion
    //log初始化設(shè)置
    Log4Application Log4App = new Log4Application();

    /*用于移動源文件到指定文件夾，也就是備份源數(shù)據(jù)文件
    copy all file in folder Working to Achieve*/
    public void BackupData(string equipName)
    {
      //需要存放（備份）的文件夾路徑（Achieve）
      string ArchivePath = APath + equipName + " Equipment Temp. monitoring by third tool\\Archive";
      //讀取數(shù)據(jù)源文件的文件夾路徑（Working）
      string WorkingPath = WPath + equipName + " Equipment Temp. monitoring by third tool\\Working";
      //初始化system.IO的配置（路徑)
      DirectoryInfo directoryInfo = new DirectoryInfo(WorkingPath);
      //用文件流來獲取文件夾中所有文件，存放到
      FileInfo[] files = directoryInfo.GetFiles();
      //循環(huán)的把所有機臺數(shù)據(jù)備份到Achieve文件夾
      try
      {
        foreach (FileInfo file in files) // Directory.GetFiles(srcFolder)
        {
          //使用IO中的Moveto函數(shù)進行移動文件操作
          file.MoveTo(Path.Combine(ArchivePath, file.Name));


        }
      }
      catch (Exception ex)
      {

      }
    }
    //判斷Excel是否在被人使用
    public bool IsUsed(String fileName)
    {
      bool result = false;

      try
      {
        FileStream fs = File.OpenWrite(fileName);
        fs.Close();
      }
      catch
      {
        result = true;
      }
      return result;
    }

    //將xls文件投入datatable ， 返回一個datatable為 ds.table[0]
    public bool GetFiles(string equipName)
    {
      bool flag = false;
      //choose all sheet? or all data in sheet?
      string strExcel = "select * from [Sheet1$]";
      //初始化system.IO的配置（路徑)
      DirectoryInfo directoryInfo1 = new DirectoryInfo(WPath + equipName + " Equipment Temp. monitoring by third tool\\Working");
      //用文件流來獲取文件夾中所有文件，存放到
      FileInfo[] files1 = directoryInfo1.GetFiles();
      foreach (FileInfo file in files1) // Directory.GetFiles(srcFolder)
      {
        // 連接到excel 數(shù)據(jù)源,  xlsx要用ACE
        string strConn = ("Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source= " + file.FullName + "; Extended Properties='Excel 12.0';");
        OleDbConnection OledbConn = new OleDbConnection(strConn);
        if (IsUsed(file.FullName))
        {
          flag = IsUsed(file.FullName);

          continue;
        }
        try
        {
          OledbConn.Open();
          // 存入datatable，Excel表示哪一個sheet，conn表示連接哪一個Excel文件（jet、ACE）
          OleDbDataAdapter dAdapter = new OleDbDataAdapter(strExcel, strConn);
          dAdapter.Fill(ds);
          OledbConn.Dispose();
          OledbConn.Close();

        }
        catch (Exception ex)
        {

        }
      }
      return flag;
    }

    // 將datatable中的數(shù)據(jù)存入SQL server
    public void DataToSql(string equipName)
    {
      //初始化配置 sqlserver的服務(wù)器名用戶等

      SqlConnection Conn = new SqlConnection(ConnStr);
      Conn.Open();

      //配置SQLBulkCopy方法，真正用于復(fù)制數(shù)據(jù)到數(shù)據(jù)庫的方法
      SqlBulkCopy bulkCopy = new SqlBulkCopy(ConnStr, SqlBulkCopyOptions.UseInternalTransaction)
      {
        DestinationTableName = "ModelTest_HD"
      };
      try
      {
        foreach (DataColumn item in ds.Tables[0].Columns)
        {
          //只復(fù)制所選的相關(guān)列
          bulkCopy.ColumnMappings.Add(item.ColumnName, item.ColumnName);
        }
        //開始復(fù)制到sql,每次在數(shù)據(jù)庫中添加
        bulkCopy.WriteToServer(ds.Tables[0]);
        bulkCopy.Close();
        //copy完了，要清空ds的內(nèi)容，不然會引起循環(huán)寫入上一個內(nèi)容
        ds.Tables.Clear();

      }
      catch (Exception ex)
      {

      }
      finally
      {
        //關(guān)閉數(shù)據(jù)庫通道
        Conn.Close();
      }
    }

    protected override void OnStart(string[] args)
    {
      //啟動服務(wù)時做的事情

    }
    protected override void OnStop()
    {
      //停止服務(wù)時做的事情

    }
  }
}

foreach (DataColumn item in ds.Tables[0].Columns)
{
//只復(fù)制所選的相關(guān)列
bulkCopy.ColumnMappings.Add(item.ColumnName, item.ColumnName);
}