003. 连接access数据库代码

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1. 前端aspx中的代码

 <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 <html xmlns="http://www.w3.org/1999/xhtml" >

 <head id="Head1" runat="server">

     <title>配置Access数据库连接</title>

 </head>

 <body>

     <form id="form1" runat="server">

     <div>

         &nbsp;</div>

     </form>

 </body>

 </html>

2. 后台.cs文件中的代码

 using System;

 using System.Collections.Generic;

 using System.Web;

 using System.Web.UI;

 using System.Web.UI.WebControls;

 using System.Configuration;

 using System.Data.OleDb;

 public partial class _Default : System.Web.UI.Page

 {

     protected void Page_Load(object sender, EventArgs e)

     {

         string con_access = ConfigurationManager.AppSettings["accessCon"].ToString();//获取配置文件中的数据库连接字符串

         Response.Write("Aceess数据库连接字符串：" + con_access);//输出获取的数据库字符串信息

         OleDbConnection oCon = new OleDbConnection(ConfigurationManager.AppSettings["accessCon"]);

         try

         {

             oCon.Open();//打开数据库连接

             Response.Write("<script>alert('连接成功')</script>");

             oCon.Close();//关闭数据库连接

         }

         catch (Exception ex)

         {

             Response.Write("<script>alert(" + ex.ToString() + ")</script>");

         }

     }

 }

3. web.config中的部分代码

   </configSections>

   <appSettings>

     <add key="accessCon" value="Provider=Microsoft.Jet.OLEDB.4.0;  Data Source=|DataDirectory|db_access.mdb"/>

   </appSettings>

   <connectionStrings/>