asp.net实现将Excel中多个sheet数据导入到SQLSERVER中的方法

public DataSet GetDataSet(string filePath){  string Connstr = string.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + filePath + "';Extended Properties='Excel 8.0;HDR=Yes;IMEX=1'");  OleDbConnection Conn = new OleDbConnection(Connstr);  //创建ArrayList对象 存放所有sheetname   ArrayList sheetNamelist = new ArrayList();  //获取配置Excel中sheet总数(这里是根据项目需求配置的) 如果需要导入Excel表格所有sheet数据则将此代码删除  int sheetCount = Convert.ToInt32(ConfigurationManager.AppSettings["sheetCount"].ToString());  DataSet dsExcel = new DataSet();  try  {   if (Conn.State == ConnectionState.Closed)   {    Conn.Open();   }   DataTable dtExcelSchema = Conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" });   string sheetName = string.Empty;   if (dtExcelSchema.Rows.Count > sheetCount)   {    Page.RegisterStartupScript("", "<mce:script type="text/javascript"><!--alert('很抱歉!你上传Excel文件sheet总数过多不能大于10个sheet..!! ')// --></mce:script>");    return;   }   else   {    for (int j = 0; j < dtExcelSchema.Rows.Count; j++)    {     sheetName = String.Format("Sheet{0}$", j + 1);     sheetNamelist.Add(sheetName);    }   }  }  catch (Exception ex)  {   throw new Exception(ex.Message.ToString(), ex);  }  finally  {   Conn.Close();  }  try  {   string strSQL = string.Empty;   for (int i = 0; i < sheetNamelist.Count; i++)   {    strSQL = "select * from [" + sheetNamelist[i].ToString() + "]";    OleDbDataAdapter da = new OleDbDataAdapter(strSQL, Conn);    DataTable dtExcel = new DataTable(sheetNamelist[i].ToString());    da.Fill(dtExcel);    dsExcel.Tables.Add(dtExcel);   }   return dsExcel;  }  catch (Exception ex)  {   throw new Exception(ex.Message.ToString(), ex);  } } //从Excel 表中取出数据 将取出来的数据插入到数据库中 public void InsertData(DataSet ds) {   string strSQL=string.Empty;   if (ds.Tables[0].Rows.Count > 0)   {    for (int j = 0; j < ds.Tables.Count; j++)     {     for(int i=0;i<ds.Tables[j].Rows.Count;i++)    {     DataRow dr=ds.Tables[j].Rows[i];     //组名     string groupname = dr["组名"].ToString().Trim();     //联系人     string contactName = dr["联系人"].ToString().Trim();     //手机号码     string mobile = dr["手机号码"].ToString().Trim();     //公司名称     string companyName = dr["公司名称"].ToString().Trim();     //公办号码     string officeNum = dr["办公号码"].ToString().Trim();     //家庭号码     string homeNum = dr["家庭号码"].ToString().Trim();     //邮箱     string Email = dr["邮 箱"].ToString().Trim();     //联系地址     string address = dr["联系地址"].ToString().Trim();     //创建时间     string createtime = dr["创建时间"].ToString().Trim();     //性别     string Sex = dr["性别"].ToString().Trim();     //手机套餐类型     string mobileType = dr["手机套餐类型"].ToString().Trim();     //是否开通通信助理     string isOpen = dr["是否开通通信助理"].ToString().Trim();     //SQL 语句     strSQL = "insert into msm_Excel(groupName,Mobile,Name,companyName,officeNum,homeNum,Emial,address,Createtime,Sex,mobileType,isOpen)values('" + groupname + "','" + mobile + "','" + contactName + "','" + companyName + "','" + officeNum + "','" + homeNum + "','" + Email + "','" + address + "','" + createtime + "','" + Sex + "','" + mobileType + "','" + isOpen + "')";     try     {      int n = SQLHelper.SqlDataExecute(strSQL);      if (n > 0)      {       Page.RegisterStartupScript("", "<mce:script type="text/javascript"><!--alert('数据插入成功!')// --></mce:script>");       Label1.Text = "一共成功插入" + ds.Tables[j].Rows.Count.ToString() + "条数据";      }      else      {       Page.RegisterStartupScript("", "<mce:script type="text/javascript"><!--alert('服务器繁忙！请稍候再试..!')// --></mce:script>");      }     }     catch (Exception ex)     {      throw ex;     }    }   }      }  else {   Page.RegisterStartupScript("", "<mce:script type="text/javascript"><!--alert('此Excel文件中无数据!!!')// --></mce:script>");  } }//调用//获取上传文件名  string fileName = FileUpload1.FileName;   //判断是否存在上传文件  if (FileUpload1.PostedFile.FileName.Length == 0) {   Page.RegisterStartupScript("", "<mce:script type="text/javascript"><!--alert('请选择你要上传的Excel文件!!')// --></mce:script>");  }   //判断上传的文件类型是否正确  else if (!Path.GetExtension(FileUpload1.PostedFile.FileName).ToLower().Equals(".xls") && !Path.GetExtension(FileUpload1.PostedFile.FileName).ToLower().Equals(".xlsx"))  {   Page.RegisterStartupScript("", "<script>alert('很抱歉!你上传的文件类型不正确!只能上传Excel类型的文件!')</script.");  }  else  {   //获取上传的文件路径   filePath = Server.MapPath("TxtFiles//") + DateTime.Now.ToString("yyyyMMddhhmmss") + fileName;   this.FileUpload1.PostedFile.SaveAs(filePath);   ds = GetDataSet(filePath);   InsertData(ds);  }