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using System; using System.Collections.Generic; using System.Linq; using System.Text; using FS.Extend; using System.Data; using System.Data.OleDb; namespace Tag.Logic { public static class UploadFileLogic { /// <summary> /// 获取链接字符串 /// </summary> /// <param name="filePath">文件路径</param> /// <returns></returns> private static string GetConectionString(string filePath) { var strSuffix = ""; if (filePath.IsNullOrEmpty()) { return ""; } strSuffix = filePath.Substring(filePath.LastIndexOf(".")); var strConectionString = ""; switch (strSuffix) { case ".xls": { strConectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties=\"Excel 8.0\""; break; } case ".xlsx": { strConectionString = "Provider=Microsoft.Jet.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=\"Excel 12.0\""; break; } } return strConectionString; } /// <summary> /// 获取表数据 /// </summary> /// <param name="filePath">文件路径</param> /// <param name="sheetName">名称</param> /// <returns></returns> public static DataTable GetDataTable(string filePath, string sheetName) { string strConn = GetConectionString(filePath); string strSql = "select * from [" + sheetName + "$]"; OleDbConnection conn = new OleDbConnection(strConn); conn.Open(); DataTable dt = new DataTable(); OleDbDataAdapter ole = new OleDbDataAdapter(strSql, conn); ole.Fill(dt); return dt; } } }
var licenseDT = new DataTable();
licenseDT = UploadFileLogic.GetDataTable(pathfile, "证书信息");
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原文地址:http://www.cnblogs.com/sll-fuling/p/5033383.html