asp.net查询mysql数据库

using MySql.Data.MySqlClient;
using System;

public class DatabaseHelper
{
    private static string connectionString = "Server=localhost;Database=mydatabase;Uid=myuser;Pwd=mypassword;";

    public static void Connect()
    {
        try
        {
            using (MySqlConnection connection = new MySqlConnection(connectionString))
            {
                connection.Open();
                Console.WriteLine("Connected to the database!");
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

using MySql.Data.MySqlClient;
using System;

public class DatabaseHelper
{
    private static string connectionString = "Server=localhost;Database=mydatabase;Uid=myuser;Pwd=mypassword;";

    public static void ExecuteQuery()
    {
        try
        {
            using (MySqlConnection connection = new MySqlConnection(connectionString))
            {
                connection.Open();
                string query = "SELECT * FROM users WHERE age > @age";
                using (MySqlCommand command = new MySqlCommand(query, connection))
                {
                    command.Parameters.AddWithValue("@age", 25);
                    using (MySqlDataReader reader = command.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            Console.WriteLine(reader["name"]);
                        }
                    }
                }
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}