[C#/ASP.NET MVC/.NETCORE] ActionFilterAttribute 클래스 : 액션 필터 사용하기

TestProject.zip

다운로드

▶ SessionCheckActionFilterAttribute.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.AspNetCore.Routing;

namespace TestProject
{
    /// <summary>
    /// 세션 체크 액션 필터 어트리뷰트
    /// </summary>
    public class SessionCheckActionFilterAttribute : ActionFilterAttribute
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 액션 실행시 처리하기 - OnActionExecuting(context)

        /// <summary>
        /// 액션 실행시 처리하기
        /// </summary>
        /// <param name="context">컨텍스트</param>
        public override void OnActionExecuting(ActionExecutingContext context)
        {
            if(context.HttpContext.Session.GetString("Name") == null)
            {
                context.Result = new RedirectToRouteResult
                (
                    new RouteValueDictionary
                    (
                        new
                        {
                            action     = "Index",
                            controller = "Home"
                        }
                    )
                );
            }

            base.OnActionExecuting(context);
        }

        #endregion
    }
}

 

728x90

 

▶ Controllers/HomeController.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace TestProject.Controllers
{
    /// <summary>
    /// 홈 컨트롤러
    /// </summary>
    public class HomeController : Controller
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 인덱스 페이지 처리하기 - Index()

        /// <summary>
        /// 인덱스 페이지 처리하기
        /// </summary>
        /// <returns>액션 결과</returns>
        public IActionResult Index()
        {
            HttpContext.Session.SetString("Name", "James");

            return View();
        }

        #endregion
        #region 개인 페이지 처리하기 - Private()

        /// <summary>
        /// 개인 페이지 처리하기
        /// </summary>
        /// <returns>액션 결과</returns>
        [SessionCheckActionFilter]
        public IActionResult Private()
        {
            return View();
        }

        #endregion
    }
}

 

300x250

 

▶ Views/Home/Index.cshtml

<p>인덱스 페이지</p>
<hr />

 

▶ Views/Home/Private.cshtml

@using Microsoft.AspNetCore.Http
<p>개인 페이지</p>
<hr />
<p>@Context.Session.GetString("Name")</p>

 

▶ Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

namespace TestProject
{
    /// <summary>
    /// 시작
    /// </summary>
    public class Startup
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Property
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 구성 - Configuration

        /// <summary>
        /// 구성
        /// </summary>
        public IConfiguration Configuration { get; }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - Startup(configuration)

        /// <summary>
        /// 생성자
        /// </summary>
        /// <param name="configuration">구성</param>
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 서비스 컬렉션 구성하기 - ConfigureServices(services)

        /// <summary>
        /// 서비스 컬렉션 구성하기
        /// </summary>
        /// <param name="services">서비스 컬렉션</param>
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSession();

            services.AddControllersWithViews();
        }

        #endregion
        #region 구성하기 - Configure(app, environment)

        /// <summary>
        /// 구성하기
        /// </summary>
        /// <param name="app">애플리케이션 빌더</param>
        /// <param name="environment">웹 호스트 환경</param>
        public void Configure(IApplicationBuilder app, IWebHostEnvironment environment)
        {
            if(environment.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");

                app.UseHsts();
            }

            app.UseHttpsRedirection();

            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthorization();

            app.UseSession();

            app.UseEndpoints
            (
                endpoints =>
                {
                    endpoints.MapControllerRoute
                    (
                        name    : "default",
                        pattern : "{controller=Home}/{action=Index}/{id?}"
                    );
                }
            );
        }

        #endregion
    }
}

 

※ 패키지 설치 : Microsoft.AspNetCore.Session

 

1. 비주얼 스튜디오를 실행한다.

2. 비주얼 스튜디오에서 [도구] / [NuGet 패키지 관리자] / [패키지 관리자 콘솔] 메뉴를 클릭한다.

3. [패키지 관리자 콘솔]에서 아래 명령을 실행한다.

Install-Package Microsoft.AspNetCore.Session