从Excel 电子表格中读取数据并插入到数据库的简单方式

             using (FileStream fileStreamRead = new FileStream("new.xls" , FileMode.Open ))
            {
                //创建工作簿
                IWorkbook wk = new HSSFWorkbook (fileStreamRead );
                //获得工作表的个数
                int sheetCount = wk.NumberOfSheets;
                for (int i = 0; i < sheetCount; i++)
                {
                    //获得当前工作表
                    ISheet sheet = wk.GetSheetAt (i);
                    string strSql =
                        "insert into  T_Customers(CC_CustomerName, CC_CellPhone, CC_Landline,CC_CarNum ,CC_BracketNum,CC_BuyDate) values(@CC_CustomerName, @CC_CellPhone, @CC_Landline,@CC_CarNum ,@CC_BracketNum,@CC_BuyDate)";
                    //获取当前工作表的总行数
                    int rowCount = sheet.LastRowNum ;
                    for (int j = 1; j <= rowCount; j++)
                    {
                        SqlParameter[] parameters = new SqlParameter []
                                                      {
                                                          new SqlParameter ("@CC_CustomerName", SqlDbType .NVarChar,50),
                                                          new SqlParameter ("@CC_CellPhone",SqlDbType .VarChar,50),
                                                          new SqlParameter ("@CC_Landline",SqlDbType .VarChar,50),
                                                           new SqlParameter ("@CC_CarNum",SqlDbType .VarChar,50),
                                                              new SqlParameter ("@CC_BracketNum",SqlDbType .VarChar,50),
                                                               new SqlParameter ("@CC_BuyDate",SqlDbType .DateTime),
                                                      };

                        //获得当前行
                        IRow row = sheet.GetRow (j);
                        //获得当前行的单元格数
                        int cellCount = row.LastCellNum;
                        for (int k = 0; k < cellCount; k++)
                        {
                            //获得当前单元格
                            ICell cell = row.GetCell (k);

                            if (cell == null)
                            {
                                //当前单元格的数据为空 则给数据库传入空
                                parameters[ k].Value = DBNull.Value;
                            }
                            else
                            {
                                //判断读到的数据类型
                                switch (cell.CellType)
                                {
                                    //数字类型
                                    case CellType .NUMERIC:
                                        if (k == 5 )
                                        {
                                            parameters[ k].Value = cell.DateCellValue;
                                        }
                                        else
                                        {
                                            parameters[ k].Value = cell.NumericCellValue;
                                        }

                                        break;
                                       //空值
                                    case CellType .BLANK:
                                        parameters[ k].Value = DBNull.Value;
                                        break;
                                    default:
                                        parameters[ k].Value = cell.ToString();
                                        break;
                                }
                            }
                        }
                        int r = Alian_SQL_Helper.SQL_Helper .ExecuteNonquery(strSql, CommandType .Text, parameters);
                    }
                }
            }