如何使用隐藏代码通过 Microsoft sql 服务器建立连接？

Question

我的 asp.net 项目在设置与 ms sql 服务器的连接时遇到问题。这是我的 aspx 代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="OnlineAppSyss.aspx.cs" Inherits="SoftwareAnalysisAndDesign.SAD.OnlineAppSyss" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Online AppSyss System</title>
    <meta charset="utf-8"/>
    <link rel="stylesheet" href="css/style.css" />
    <script src="js/index.js"></script>
    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
</head>
<body bgcolor="#339966">
    <div class="wrapper">
        <div class="container">
            <h1>Welcome to Online AppSess System</h1>
            <form id="form1" runat="server">
                <input type="text" id="Username" runat="server" placeholder="Username" />
                <input type="text" id="Password" runat="server" placeholder="Password" />
                <button type="submit" id="login-button" onserverclick="Button1_Click">Login</button>
            </form>
        </div>
    </div>
    <ul class="bg-bubbles">
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
    </ul>
</body>
</html>

还有我后面的aspx代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Text;
using System.Threading.Tasks;

namespace SoftwareAnalysisAndDesign.SAD
{
    public partial class OnlineAppSyss : System.Web.UI.Page
    {
        public class MSConnector
        {
            public String ConnectionString { get; set; }
            public DataSet ExecuteQuery(String sqlStatement)
            {
                try
                {

                    DataSet results = new DataSet();

                    using (SqlConnection conn = new SqlConnection(ConnectionString))
                    {
                        if (conn.State == System.Data.ConnectionState.Closed)
                        {
                            conn.Open();
                        }

                        using (SqlDataAdapter da = new SqlDataAdapter(sqlStatement, conn))
                        {
                            da.Fill(results);
                        }

                        if (conn.State == System.Data.ConnectionState.Open)
                        {
                            conn.Close();
                        }
                    }

                    return results;
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
        }

        public static string query = null;
        private DataSet selectedData;
        private DataTable dt;
        private MSConnector connector = new MSConnector();
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            Login();
        }
        public void Login()
        {
            //ConnectionString for accessing into MSSql
            connector.ConnectionString = "SERVER=KEITH;UID=KEITH/LaurenceKeith;Password=;DATABASE=Student;";

            string username = (this.Username.Value);
            string password = (this.Password.Value);

            if (username == "" && password == "")
            {
                query = "select * from Student where StudentID = 2011017997'";
                query = "select * from Student where Password = 'lalbano' '";
            }

        }
    }
}

这是我使用 class MSConnector

建立连接的代码

public class MSConnector
        {
            public String ConnectionString { get; set; }
            public DataSet ExecuteQuery(String sqlStatement)
            {
                try
                {

                    DataSet results = new DataSet();

                    using (SqlConnection conn = new SqlConnection(ConnectionString))
                    {
                        if (conn.State == System.Data.ConnectionState.Closed)
                        {
                            conn.Open();
                        }

                        using (SqlDataAdapter da = new SqlDataAdapter(sqlStatement, conn))
                        {
                            da.Fill(results);
                        }

                        if (conn.State == System.Data.ConnectionState.Open)
                        {
                            conn.Close();
                        }
                    }

                    return results;
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
        }

即使我的代码背后没有错误，我也无法在我的数据库中检索我的数据。

我的连接字符串有问题吗？不过，我的 ms sql 服务器中没有密码。这是连接字符串的正确代码吗？请帮助。

//ConnectionString for accessing into MSSql
connector.ConnectionString = "SERVER=KEITH;UID=KEITH/LaurenceKeith;Password=;DATABASE=Student;";

Answer 1

试试这个作为连接字符串，将使用 Windows 登录身份验证。

connector.ConnectionString = "data source=KEITH;initial catalog=Student;Integrated Security=SSPI;providerName=System.Data.SqlClient";

这是假设 Keith 是您的 SQL 服务器并且数据库是 Student

如何使用隐藏代码通过 Microsoft sql 服务器建立连接？

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