如何將啟動代碼從 asp.net core 2.1 轉換為 Startup Code asp.net Core 3.1

Question

我想將我的項目從 asp.net 核心 2.1 升級到 asp.net 核心 3.1，我已經將 SDK 更改為 3.1，如下面的代碼，但我不知道根據啟動代碼 3.1 的需要在我的啟動代碼中更改什么

<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
    <TargetFramework>netcoreapp3.1</TargetFramework>
</PropertyGroup>

現在我想將我的啟動代碼從 asp.net core 2.1 更新為 asp.net core 3.1 請根據 asp.net core 3.1 的需要修改以下啟動代碼

這是我的啟動代碼版本 asp.net Core 2.1

    public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        var connection = Configuration.GetConnectionString("DBconnection");
        services.AddDbContext<HoshmandDBContext>(option => option.UseSqlServer(connection));
        services.AddAuthentication(option =>
        {
            option.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;
            option.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
            option.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme;
        })
        .AddCookie(options =>
        {
            options.LoginPath = "/Logins/UserLogin/";
            options.AccessDeniedPath = "/AccessDenied";
            options.Cookie.Expiration = new TimeSpan(10,00,00);
        });

        services.AddDistributedMemoryCache();
        services.AddSession(options =>
        {
            options.IdleTimeout = TimeSpan.FromHours(2);
            options.Cookie.HttpOnly = true;
            options.Cookie.IsEssential = true;

        });
        
        services.ConfigureApplicationCookie(option =>
        {
            option.ExpireTimeSpan = TimeSpan.FromMinutes(540);
        });

        services.AddAuthorization(options =>
        {
            options.AddPolicy("HasAccess", policy => policy.AddRequirements(new HasAccessRequirment()));
        });
        services.AddTransient<IAuthorizationHandler, HasAccessHandler>();
        services.AddTransient<IMvcControllerDiscovery, MvcControllerDiscovery>();

        services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
    }

    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            app.UseExceptionHandler("/Home/Error");
            app.UseHsts();
        }
        app.UseHttpsRedirection();
        app.UseStaticFiles();
        app.UseAuthentication();
        app.UseCookiePolicy();
        app.UseSession();
        app.UseMvc(routes =>
        {
            routes.MapRoute(
                name: "default",
               template: "{controller=UserProfiles}/{action=Index}/{id?}");
        });
    }
}

Package Manger Reference Code asp.net core 2.1 需要更新到asp.net core 3.1

    <ItemGroup>
    <PackageReference Include="BCrypt-Core" Version="2.0.0" />
    <PackageReference Include="ClosedXML" Version="0.97.0" />
    <PackageReference Include="Magick.NET-Q16-AnyCPU" Version="7.8.0" />

    <PackageReference Include="Microsoft.AspNetCore" Version="2.1.7" />
    <PackageReference Include="microsoft.aspnetcore.app" Version="2.1.4" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.1.3" />
    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.1.1" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.1.14" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.1.14" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.1.14">
        <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
        <PrivateAssets>all</PrivateAssets>
    </PackageReference>
    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.1.1" />
    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.1.1" />
    <PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink" Version="2.1.1" />
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.1.10" />
    <PackageReference Include="System.Configuration.ConfigurationManager" Version="5.0.0" />
    <PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.7" />
</ItemGroup>

<ItemGroup>
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.3" />
</ItemGroup>

這是我的 UserProfile Controller 代碼，默認情況下從 Startup EndpointRouting 用戶會來到這個頁面，如果用戶沒有登錄它會重定向到登錄頁面

 [Authorize]
    public async Task<IActionResult> Index(bool? passIsChanged = null) // userId
    {
        if (passIsChanged != null)
        {
            ViewBag.isSuccessed = passIsChanged;
        }
        int id = Convert.ToInt32(User.Identity.Name);
        var user = _context.UserAccountTbs.FirstOrDefault(a => a.UserId == id);
        if (user == null)
        {
            return RedirectToAction("UserLogin", "Logins");
        }
            userprofile = new UserProfile
            {
                UserId = user.UserId,
                Name = users.FirstName,
            };


        return await Task.FromResult(View(userprofile));
    }

這是我的登錄 Controller 代碼，如果用戶未登錄，則返回新登錄 model，如果用戶已登錄，則將檢查其密碼和用戶名並進行驗證，

  public LoginsController(HoshmandDBContext context) : base(context)
    {
    }

    [HttpGet]
    public async Task<IActionResult> UserLogin()
    {
        return await Task.Run(() => View(new Login()));
    }

    [HttpPost]
    [AllowAnonymous]
    public async Task<IActionResult> UserLogin([FromForm] Login currentUser)
    {
        if (ModelState.IsValid)
        {
            var properties = new AuthenticationProperties
            {
                IsPersistent = currentUser.RememberMe,
                AllowRefresh = false,
                ExpiresUtc = DateTimeOffset.UtcNow.AddDays(10)
            };

            UserAccountTb user = _context.UserAccountTbs.FirstOrDefault(a => a.UserName.Equals(currentUser.UserName));
            if (user == null)
            {
                TempData["UserLoginFailed"] = "Login Failed: Please Enter Correct Credential";
                return View();
            }
            else
            {
                // validate the password and login if not validate 
                show a message that enter correct password 
            }

Answer 1

首先，您需要更改 SDK in.csproj 文件：

<TargetFramework>netcoreapp3.1</TargetFramework>

並刪除這一行：

<PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.2" PrivateAssets="All" />

二、更新你添加到3.1對應版本的Nuget package：

然后，您可以更改您的 Startup.cs：

1. .net 3.1不支持options.Cookie.Expiration ，需要用options.ExpireTimeSpan代替。
2. 更改services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1) ; 到services.AddMvc(); .
3. app.UseMvc(); .net 3.1 將不再支持定義端點。 你需要使用app.UseRouting(); 和app.UseEndpoints(); .

最后，您的 Startup.cs 應該如下所示：

public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            var connection = Configuration.GetConnectionString("DBconnection");
            services.AddDbContext<HoshmandDBContext>(option => option.UseSqlServer(connection));
            services.AddAuthentication(option =>
            {
                option.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                option.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                option.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme;
            })
            .AddCookie(options =>
            {
                options.LoginPath = "/Logins/UserLogin/";
                options.AccessDeniedPath = "/AccessDenied";
                options.ExpireTimeSpan = new TimeSpan(10, 00, 00);
            });

            services.AddDistributedMemoryCache();
            services.AddSession(options =>
            {
                options.IdleTimeout = TimeSpan.FromHours(2);
                options.Cookie.HttpOnly = true;
                options.Cookie.IsEssential = true;

            });

            services.ConfigureApplicationCookie(option =>
            {
                option.ExpireTimeSpan = TimeSpan.FromMinutes(540);
            });

            services.AddAuthorization(options =>
            {
                options.AddPolicy("HasAccess", policy => policy.AddRequirements(new HasAccessRequirment()));
            });
            services.AddTransient<IAuthorizationHandler, HasAccessHandler>();
            services.AddTransient<IMvcControllerDiscovery, MvcControllerDiscovery>();
            services.AddMvc();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthentication();
            app.UseAuthorization();
            app.UseCookiePolicy();
            app.UseSession();

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

另外，我在UserProfilesController的Index方法中添加了[Authorize]屬性來驗證重定向：

public class UserProfilesController : Controller
    {
        [Authorize]
        public IActionResult Index()
        {
            return View();
        }
    }

登錄控制器：

public class LoginsController : Controller
    {
        public IActionResult UserLogin()
        {
            return View();
        }
    }

然后運行項目：

右鍵單擊您的項目和 select “管理 NuGet 包”，您可以看到所有包的引用。 然后select對應package並更新到合適的版本：