计算机网络编程做一个带数据库超连接的网站
来源:百度知道 编辑:UC知道 时间:2024/09/25 00:40:51
高分求做,比较满意就给分了.知道这个需要点专业知识
这是.net写的!
连接数据库
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
namespace MyBookShop.DAL
{
public static class DBHelper
{
private static SqlConnection connection;
public static SqlConnection Connection
{
get
{
string connectionString = "Data Source=.;Initial Catalog=MyBookShop; uid=sa;Password=";
if (connection == null)
{
connection = new SqlConnection(connectionString);
connection.Open();
}
else if (connection.State == System.Data.ConnectionState.Closed)
{
connection.Open();
}