asp.net 连接 Access 的几种方法

 

web.config

1

 

   <?xml version= 
  " 
  1.0 
  " encoding= 
  " 
  utf-8 
  "?> 
  
 
  
<!-- 
  
  有关如何配置 ASP.NET 应用程序的详细消息，请访问 
  
  http: 
  // 
  go.microsoft.com/fwlink/?LinkId=169433 
  
  --> 
  
 
  
<configuration> 
  
  <appSettings> 
  
    <add key= 
  " 
  AccessConnString 
  " value= 
  " 
  provider=microsoft.jet.oledb.4.0;data source= 
  "/> 
  
    <add key= 
  " 
  AccessDbPath 
  " value= 
  " 
  ~/App_Data/guestbook.mdb 
  "/> 
  
  </appSettings> 
  
  <connectionStrings> 
  
    <add name= 
  " 
  AccessConnectionString 
  "  connectionString= 
  " 
  Provider=Microsoft.Jet.OleDb.4.0;Data Source= 
  " providerName= 
  " 
  System.Data.OleDb 
  "/> 
  
    <add name= 
  " 
  Access_Path 
  " connectionString= 
  " 
  ~/App_Data/guestbook.mdb 
  "/> 
  
    <add name= 
  " 
  SqlConnectionString 
  " connectionString= 
  " 
  Data Source=localhost;Initial Catalog=guestbook;User ID=sa;password=123456; 
  " providerName= 
  " 
  System.Data.SqlClient 
  "/> 
  
    <add name= 
  " 
  OracleConnectionString 
  " connectionString= 
  " 
  Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=xp2008)(PORT=1521)))(CONNECT_DATA=(SID=guandb)(SERVER=DEDICATED)));User ID=system;Password=k2763826;Unicode=True 
  " providerName= 
  " 
  System.Data.OracleClient 
  "/> 
  
  </connectionStrings> 
  
  <system.web> 
  
        <compilation debug= 
  " 
  true 
  " targetFramework= 
  " 
  4.0 
  " /> 
  
    </system.web> 
  
 
  
</configuration> 
 

 

 

2

 

   <?xml version= 
  " 
  1.0 
  " encoding= 
  " 
  utf-8 
  "?> 
  
 
  
<!-- 
  
  有关如何配置 ASP.NET 应用程序的详细消息，请访问 
  
  http: 
  // 
  go.microsoft.com/fwlink/?LinkId=169433 
  
  --> 
  
 
  
<configuration> 
  
  <appSettings> 
  
    <add key= 
  " 
  AccessConnString 
  " value= 
  " 
  provider=microsoft.jet.oledb.4.0;data source= 
  "/> 
  
    <add key= 
  " 
  AccessDbPath 
  " value= 
  " 
  ~/App_Data/guestbook.mdb 
  "/> 
  
  </appSettings> 
  
  <connectionStrings> 
  
    <add name= 
  " 
  AccessConnectionString 
  " connectionString= 
  " 
  Provider=Microsoft.Jet.Oledb.4.0;data source= 
  "/> 
  
    <add name= 
  " 
  Access_Path 
  " connectionString= 
  " 
  ~/App_Data/guestbook.mdb 
  "/> 
  
    <add name= 
  " 
  SqlConnectionString 
  " connectionString= 
  " 
  Data Source=localhost;Initial Catalog=HuaRunDb;User ID=sa;password=123456; 
  " providerName= 
  " 
  System.Data.SqlClient 
  "/> 
  
  </connectionStrings> 
  
  <system.web> 
  
        <compilation debug= 
  " 
  true 
  " targetFramework= 
  " 
  4.0 
  " /> 
  
    </system.web> 
  
 
  
</configuration> 
 

 

 

后台 aspx.CS

 

 

 
  using System; 
  
 
  using System.Collections.Generic; 
  
 
  using System.Linq; 
  
 
  using System.Web; 
  
 
  using System.Web.UI; 
  
 
  using System.Web.UI.WebControls; 
  
 
  using System.Web.Configuration; 
  
 
  using System.Configuration; 
  
 
  using System.Data.OleDb; 
  
 
  using System.Data; 
  
 
  
 
  namespace TestOracle 
  
{ 
  
     
  public  
  partial  
  class TestConnect : System.Web.UI.Page 
  
    { 
  
         
  public  
  static  
  readonly  
  string connStr1 = System.Web.Configuration.WebConfigurationManager.ConnectionStrings[ 
  " 
  AccessConnectionString 
  "].ConnectionString+ HttpContext.Current.Server.MapPath(WebConfigurationManager.ConnectionStrings[ 
  " 
  Access_Path 
  "].ConnectionString); 
  
         
  public  
  static  
  readonly  
  string connStr2 = System.Configuration.ConfigurationManager.AppSettings[ 
  " 
  AccessConnString 
  "].ToString() + System.Web.HttpContext.Current.Server.MapPath(ConfigurationManager.AppSettings[ 
  " 
  AccessDbPath 
  "]) +  
  " 
  ; 
  "; 
  
         
  public  
  static  
  readonly  
  string connStr3 =  
  " 
  Provider = Microsoft.Jet.OLEDB.4.0 ;Data Source= 
  " + HttpContext.Current.Server.MapPath( 
  " 
  ~/App_Data/guestbook.mdb 
  "); 
  
         
  protected  
  void Page_Load( 
  object sender, EventArgs e) 
  
        { 
  
 
  
        } 
  
 
  
         
  protected  
  void Button1_Click( 
  object sender, EventArgs e) 
  
        { 
  
            OleDbConnection conn =  
  new OleDbConnection(connStr1); 
  
             
  try 
  
            { 
  
                conn.Open(); 
  
                 
  string sql =  
  " 
  select * from GtContent 
  "; 
  
                OleDbDataAdapter myadapter =  
  new OleDbDataAdapter(sql, conn); 
  
                DataSet ds =  
  new DataSet(); 
  
                myadapter.Fill(ds); 
  
 
  
                 
  this.GridView1.DataSource = ds; 
  
                 
  this.GridView1.DataBind(); 
  
                 
  this.Label1.Text =  
  " 
  数据库连接成功！ 
  "; 
  
            } 
  
             
  catch (Exception ee) 
  
            { 
  
                 
  this.Label1.Text = ee.ToString(); 
  
            } 
  
 
  
 
  
 
  
        } 
  
    } 
  
} 
 

 

 

connStr1 ,connStr2 ，connStr3

用这三个连接字符串哪 个都可以。