/// <summary>/// 读取Excel中数据/// </summary>/// <param name="strExcelPath"></param>/// <param name="tableName"></param>/// <returns></returns>public static DataTable GetExcelTableByOleDB(string strExcelPath, string tableName){try{DataTable dtExcel = new DataTable();//数据表DataSet ds = new DataSet();//获取文件扩展名string strExtension = System.IO.Path.GetExtension(strExcelPath);string strFileName = System.IO.Path.GetFileName(strExcelPath);//Excel的连接OleDbConnection objConn = null;switch (strExtension){case ".xls":objConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + strExcelPath + ";" + "Extended Properties=\"Excel 8.0;HDR=yes;IMEX=1;\"");break;case ".xlsx":objConn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + strExcelPath + ";" + "Extended Properties=\"Excel 12.0;HDR=yes;IMEX=1;\"");//此连接可以操作.xls与.xlsx文件 (支持Excel2003 和 Excel2007 的连接字符串)  备注： "HDR=yes;"是说Excel文件的第一行是列名而不是数，"HDR=No;"正好与前面的相反。"IMEX=1 "如果列中的数据类型不一致，使用"IMEX=1"可必免数据类型冲突。 break;default:objConn = null;break;}if (objConn == null){return null;}objConn.Open();//获取Excel中所有Sheet表的信息//System.Data.DataTable schemaTable = objConn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);//获取Excel的第一个Sheet表名// string tableName1 = schemaTable.Rows[0][2].ToString().Trim();string strSql = "select * from [" + tableName + "$]";//获取Excel指定Sheet表中的信息OleDbCommand objCmd = new OleDbCommand(strSql, objConn);OleDbDataAdapter myData = new OleDbDataAdapter(strSql, objConn);myData.Fill(ds, tableName);//填充数据
                objConn.Close();//dtExcel即为excel文件中指定表中存储的信息dtExcel = ds.Tables[tableName];return dtExcel;}catch (Exception ex){Console.WriteLine(ex.Message + "\r\n" + ex.StackTrace);return null;}}

string excelFilePath = @"C:\Users\Administrator\Desktop\OpQuoteDefinition\ExcelOLEDBopDemo\bin\Debug\20171102价格导入表格物料信息.xls";
string excelSheetName = @"Sheet1";
DataTable tb= GetExcelTableByOleDB(excelFilePath, excelSheetName);