myconnoracledb.aspx.cs

ASP C#代码实例 适合初学人士学习使用

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.OracleClient;
using System.Configuration;

namespace Example_4_4
{
	/// <summary>
	/// Summary description for ConnOracleDB.
	/// </summary>
	public class MyConnOracleDB : System.Web.UI.Page
	{
		private readonly String ORACLECONNECTIONSTRING = ConfigurationSettings.AppSettings["ORACLECONNECTIONSTRING"].ToString();

		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!Page.IsPostBack)
			{
				///调用函数链接Oracle数据库
				ConnectionOracleDB();
			}
		}

		private void ConnectionOracleDB()
		{
			///创建链接Oracle数据库的链接对象
			OracleConnection oracleConnection = new OracleConnection(ORACLECONNECTIONSTRING);
			try
			{
				///打开Oracle数据库的链接
				oracleConnection.Open();
//				Response.Write("<script>alert('" + oracleConnection.ConnectionString.Replace(";","\\n") +"\\n数据库的连接成功！！！');</script>");
				//显示链接成功信息
				Response.Write("<br>ORACLE数据库连接的链接字符串：" + oracleConnection.ConnectionString);
				Response.Write("<br>ORACLE数据库连接的数据源：" + oracleConnection.DataSource);
				Response.Write("<br>ORACLE数据库连接的服务器版本：" + oracleConnection.ServerVersion);
				Response.Write("<br>ORACLE数据库连接的打开状态：" + oracleConnection.State.ToString());

				///执行数据库的操作
				///如选择、插入、删除和更新等

				///关闭ORACLE数据库的链接
				oracleConnection.Close();
				Response.Write("<br><br>ORACLE数据库连接的关闭状态：" + oracleConnection.State.ToString());
			}
			catch(Exception ex)
			{
				Response.Write("数据库的连接失败！！！原因如下：<br>" + ex.Message);
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);
		}
		#endregion
	}
}