ASP.NET連接SQLServer簡(jiǎn)單測(cè)試實(shí)例

小億
128
2024-01-08 17:52:13
欄目: 云計(jì)算

以下是ASP.NET連接SQL Server的簡(jiǎn)單測(cè)試實(shí)例:

using System;
using System.Data.SqlClient;

namespace DemoApp
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string connectionString = "Data Source=(local);Initial Catalog=DemoDB;Integrated Security=True";
            string query = "SELECT * FROM Customers";

            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand command = new SqlCommand(query, connection))
                {
                    connection.Open();
                    using (SqlDataReader reader = command.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            string customerName = reader["CustomerName"].ToString();
                            string contactName = reader["ContactName"].ToString();
                            string city = reader["City"].ToString();

                            // 做你想做的事情,比如把數(shù)據(jù)顯示在頁(yè)面上
                            Response.Write($"CustomerName: {customerName}, ContactName: {contactName}, City: {city}<br/>");
                        }
                    }
                }
            }
        }
    }
}

上述代碼假設(shè)你已經(jīng)創(chuàng)建了一個(gè)名為DemoDB的數(shù)據(jù)庫(kù),并且在該數(shù)據(jù)庫(kù)中已經(jīng)創(chuàng)建了一個(gè)名為Customers的表。

在ASP.NET應(yīng)用程序中,創(chuàng)建一個(gè)名為"Default.aspx"的頁(yè)面,并將上述代碼放在該頁(yè)面的代碼文件中。

當(dāng)訪問該頁(yè)面時(shí),它將連接到SQL Server數(shù)據(jù)庫(kù),從Customers表中檢索數(shù)據(jù),并將數(shù)據(jù)顯示在頁(yè)面上。

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