一.概述
接着上篇的WebAppIdentityDemo项目，将自定义用户数据添加到Identity DB，自定义扩展的用户数据类应继承IdentityUser类， 文件名为Areas / Identity / Data / {项目名称}User.cs。自定义的用户数据模型属性需要使用[PersonalData]来修饰，以便自动下载和删除。使数据能够下载和删除有助于满足GDPR要求。
1.1 自定义用户数据类 WebAppIdentityDemo.Areas.Identity.Data。
public class WebAppIdentityDemoUser:IdentityUser { /// /// Full name /// [PersonalData] public string Name { get; set; } /// /// Birth Date /// [PersonalData] public DateTime DOB { get; set; } } 使用属性修饰PersonalData特性是：
使用Areas/Identity/Pages/Account/Manage/DeletePersonalData.cshtml 页调用UserManager.Delete
使用Areas/Identity/Pages/Account/Manage/DownloadPersonalData.cshtml 页下载用户数据
1.2 修改IdentityHostingStartup
将Startup中有关identity的服务移到该文件中，好集中管理。
public class IdentityHostingStartup : IHostingStartup { public void Configure(IWebHostBuilder builder) { builder.ConfigureServices((context, services) => { services.AddDbContext (options => options.UseSqlServer( context.Configuration.GetConnectionString("DefaultConnection"))); services.AddDefaultIdentity () .AddDefaultUI() .AddEntityFrameworkStores (); services.Configure (options => { // Password settings. options.Password.RequireDigit = true; options.Password.RequireLowercase = true; options.Password.RequireNonAlphanumeric = true; options.Password.RequireUppercase = true; options.Password.RequiredLength = 6; options.Password.RequiredUniqueChars = 1; // Lockout settings. options.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(5); options.Lockout.MaxFailedAccessAttempts = 5; options.Lockout.AllowedForNewUsers = true; // User settings. options.User.AllowedUserNameCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._@+"; options.User.RequireUniqueEmail = false; }); services.ConfigureApplicationCookie(options => { // Cookie settings options.Cookie.HttpOnly = true; options.ExpireTimeSpan = TimeSpan.FromMinutes(5); options.LoginPath = $"/Identity/Account/Login"; options.LogoutPath = $"/Identity/Account/Logout"; options.AccessDeniedPath = $"/Identity/Account/AccessDenied"; }); }); } }
1.3 修改DbContext上下文
// public class ApplicationDbContext : IdentityDbContext public class ApplicationDbContext : IdentityDbContext{ public ApplicationDbContext(DbContextOptions options) : base(options) { } protected override void OnModelCreating(ModelBuilder builder) { base.OnModelCreating(builder); // Customize the ASP.NET Core Identity model and override the defaults if needed. // For example, you can rename the ASP.NET Core Identity table names and more. // Add your customizations after calling base.OnModelCreating(builder); } }
1.4 数据库版本迁移
PM> Add-Migration IdentitySchema2 PM> Update-Database IdentitySchema2
1.5 更新注册页面
在开发中，会员系统要重用修改的页面，把IdentityUser 改成WebAppIdentityDemoUser。如果没改将报错：未解析到服务IdentityUser。红色部分为修改的代码
[AllowAnonymous] public class RegisterModel : PageModel { // private readonly SignInManager _signInManager; //private readonly UserManager _userManager; private readonly SignInManager _signInManager; private readonly UserManager _userManager; private readonly ILogger _logger; private readonly IEmailSender _emailSender; public RegisterModel( UserManager userManager, SignInManager signInManager, ILogger logger, IEmailSender emailSender) { _userManager = userManager; _signInManager = signInManager; _logger = logger; _emailSender = emailSender; } [BindProperty] public InputModel Input { get; set; } public string ReturnUrl { get; set; } public class InputModel { [Required] [DataType(DataType.Text)] [Display(Name = "Full name")] public string Name { get; set; } [Required] [Display(Name = "Birth Date")] [DataType(DataType.Date)] public DateTime DOB { get; set; } [Required] [EmailAddress] [Display(Name = "Email")] public string Email { get; set; } [Required] [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)] [DataType(DataType.Password)] [Display(Name = "Password")] public string Password { get; set; } [DataType(DataType.Password)] [Display(Name = "Confirm password")] [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")] public string ConfirmPassword { get; set; } } public void OnGet(string returnUrl = null) { ReturnUrl = returnUrl; } public async Task OnPostAsync(string returnUrl = null) { returnUrl = returnUrl ?? Url.Content("~/"); if (ModelState.IsValid) { // var user = new IdentityUser { UserName = Input.Email, Email = Input.Email }; var user = new WebAppIdentityDemoUser { UserName = Input.Email, Email = Input.Email, Name = Input.Name, DOB = Input.DOB }; var result = await _userManager.CreateAsync(user, Input.Password); if (result.Succeeded) { _logger.LogInformation("User created a new account with password."); var code = await _userManager.GenerateEmailConfirmationTokenAsync(user); var callbackUrl = Url.Page( "/Account/ConfirmEmail", pageHandler: null, values: new { userId = user.Id, code = code }, protocol: Request.Scheme); await _emailSender.SendEmailAsync(Input.Email, "Confirm your email", $"Please confirm your account by clicking here."); await _signInManager.SignInAsync(user, isPersistent: false); return LocalRedirect(returnUrl); } foreach (var error in result.Errors) { ModelState.AddModelError(string.Empty, error.Description); } } // If we got this far, something failed, redisplay form return Page(); } }
@page@model RegisterModel@{ ViewData["Title"] = "Register";}@ViewData["Title"]
@section Scripts { 启动程序，运行注册页，保存成功后，查看数据库，如下所示：
1.6 其它相关页修改
下面这些最基本的页面，都需要把IdentityUser 改成WebAppIdentityDemoUser。
登录页 /Identity/Account/Login
注册页 Identity/Account/Register
会员管理后台主页 /Identity/Account/Manage/index
个人资料页 /Identity/Account/Manage/PersonalData
个人资料删除 /Identity/Account/Manage/DeletePersonalData
个人资料下载/Identity/Account/Manage/ DownloadPersonalData.cshtml
分部页 _ManageNav.cshtml
下面是 Account/Manage/Index.cshtml 页，已经加上自定义的二个用户字段信息，具体更新代码见官网
下面是/Identity/Account/Manage/PersonalData.cshtml 页，已经可以下载和删除用户数据
参考文献