FIC_Solar/SolarPower/Helper/DatabaseHelper.cs

using Microsoft.Extensions.Options;
using MySql.Data.MySqlClient;
using SolarPower.Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Threading.Tasks;

namespace SolarPower.Helper
{

    /// <summary>
    /// Database 介面
    /// </summary>
    public interface IDatabaseHelper
    {
        /// <summary>
        /// 取得連線
        /// </summary>
        /// <returns></returns>
        IDbConnection GetConnection();
    }

    public class DatabaseHelper : IDatabaseHelper
    {
        private readonly string _connectionString;

        public DatabaseHelper(DBConfig dbConfig)
        {
            EDFunction ed = new EDFunction();

            var serverStr1 = ed.AESEncrypt(dbConfig.Server);
            var databaseStr1 = ed.DESEncrypt(dbConfig.Database);
            var rootStr1 = ed.DESEncrypt(dbConfig.Root);
            var passwordStr1 = ed.DESEncrypt(dbConfig.Password);

            var serverStr = ed.AESDecrypt(serverStr1);
            var databaseStr = ed.DESDecrypt(databaseStr1);
            var rootStr = ed.DESDecrypt(rootStr1);
            var passwordStr = ed.DESDecrypt(passwordStr1);

            //var connStr = $"server={serverStr};database={databaseStr};user={rootStr};password={passwordStr};charset=utf8;";
            var connStr = $"server=127.0.0.1;database=solar_power;user=root;password=000000;charset=utf8;";

            //var connStr = @"data source=127.0.0.1;initial catalog=SolarPower;integrated security=true;";

            this._connectionString = connStr;
        }

        public IDbConnection GetConnection()
        {
            var conn = new MySqlConnection(this._connectionString);

            return conn;
        }
    }
}