mp-admin/Controllers/HomeController.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Data;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using MySystem.Models;
using Library;

namespace MySystem.Controllers
{
    public class HomeController : Controller
    {
        private readonly ILogger<HomeController> _logger;

        public HomeController(ILogger<HomeController> logger)
        {
            _logger = logger;
        }

        public IActionResult Index()
        {
            return View();
        }

        public IActionResult Error()
        {
            string isapi = Request.Headers["Api"].ToString();
            if (isapi != "1")
            {
                if (Response.StatusCode == 500)
                {
                    return Redirect("/public/errpage/pc/500.html");
                }
                else if (Response.StatusCode == 502)
                {
                    return Redirect("/public/errpage/pc/502.html");
                }
                else if (Response.StatusCode == 404)
                {
                    return Redirect("/public/errpage/pc/404.html");
                }
            }
            return View();
        }



        public string makerSn()
        {
            WebCMSEntities db = new WebCMSEntities();
            for (int i = 1; i <= 200; i++)
            {
                string EndNo = i.ToString();
                for (int j = 0; j < 6 - i.ToString().Length; j++)
                {
                    EndNo = "0" + EndNo;
                }
                string PosSn = "KXS01220300102" + EndNo;
                db.PosMachinesTwo.Add(new PosMachinesTwo()
                {
                    CreateDate = DateTime.Now,
                    StoreId = 1,
                    SourceStoreId = 1,
                    SourcePosSn = PosSn,
                    PosSn = PosSn,
                });
                db.SaveChanges();
            }
            db.Dispose();
            return "ok";
        }
    }
}