使用C#ASP.NET MVC身份以编程方式创建用户 [英] Create user programmatically using C# ASP.NET MVC Identity

问题描述

我正在尝试以编程方式将用户添加到ASP.NET MVC身份.

I'm trying to add a user programmatically to ASP.NET MVC Identity.

我遇到的错误是:UserManager threw an exception of type 'System.NullReferenceException'

此功能是通过不源自此站点的POST调用的.它位于AccountController中public async Task<ActionResult> Register(RegisterViewModel model)的正下方.

This function is called through a POST not originating from this site. It sits right below public async Task<ActionResult> Register(RegisterViewModel model) in the AccountController.

[AllowAnonymous]
public async Task<bool> GenerateUser(string email)
{
        var user = new ApplicationUser { UserName = email, Email = email };
        string password = System.Web.Security.Membership.GeneratePassword(12, 4);
        var result = await UserManager.CreateAsync(user, password);

        if (result.Succeeded)
        {
           // Omitted
        }
        else { AddErrors(result); }

        return true;
 }

我也试图使用下面的代码执行相同的操作，但是我得到一个错误，即用户名中不能包含特殊字符(我使用的是电子邮件地址)，但是绝对可以这样做，因为我所有的用户都是使用public async Task<ActionResult> Register(RegisterViewModel model)创建的.

I have also attempted to use the below code to perform the same action, but I get the error that special characters can't be in the UserName (I am using an email address), but this is definitely allowed as it's how all my users are created using public async Task<ActionResult> Register(RegisterViewModel model).

string password = System.Web.Security.Membership.GeneratePassword(12, 4);
var store = new Microsoft.AspNet.Identity.EntityFramework.UserStore<ApplicationUser>();
var manager = new ApplicationUserManager(store);
var user = new ApplicationUser() { Email = email, UserName = email };
var result = manager.Create(user, password);

用户对象与我填写表单以在网站上创建新用户(使用public async Task<ActionResult> Register(RegisterViewModel model))相同，并且密码只是一个字符串，也相同.

The user object is the same as if I had filled a form to create a new user on the site (using public async Task<ActionResult> Register(RegisterViewModel model)), and the password is just a string, also the same.

public async Task<ActionResult> Register(RegisterViewModel model)是根据脚手架的默认设置，但无论如何它在下面以供参考:

public async Task<ActionResult> Register(RegisterViewModel model) is as per the scaffolded default but here it is below anyway for reference:

// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model)
{
        if (ModelState.IsValid)
        {
            var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
            var result = await UserManager.CreateAsync(user, model.Password);
            if (result.Succeeded)
            {
                //await SignInManager.SignInAsync(user, isPersistent:false, rememberBrowser:false);

                // For more information on how to enable account confirmation and password reset please visit https://go.microsoft.com/fwlink/?LinkID=320771
                // Send an email with this link
                 string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
                 var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
                 await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>");

                //return RedirectToAction("Index", "Home");
                // TODO: Email Sent
                return View("ConfirmationSent");
            }
            AddErrors(result);
        }

        // If we got this far, something failed, redisplay form
        return View(model);
 }

---

---

我通过以下方式调用函数:

I call the function with:

var result = new AccountController().GenerateUser(model.emailAddress);

---

Edit2:

---

根据要求:这是ApplicationUserManager

    public static ApplicationUserManager Create(IdentityFactoryOptions<ApplicationUserManager> options, IOwinContext context) 
    {
        var manager = new ApplicationUserManager(new UserStore<ApplicationUser>(context.Get<ApplicationDbContext>()));
        // Configure validation logic for usernames
        manager.UserValidator = new UserValidator<ApplicationUser>(manager)
        {
            AllowOnlyAlphanumericUserNames = false,
            RequireUniqueEmail = true
        };

        // Configure validation logic for passwords
        manager.PasswordValidator = new PasswordValidator
        {
            RequiredLength = 8,
            RequireNonLetterOrDigit = false,
            RequireDigit = false,
            RequireLowercase = false,
            RequireUppercase = false,
        };

        // Configure user lockout defaults
        manager.UserLockoutEnabledByDefault = true;
        manager.DefaultAccountLockoutTimeSpan = TimeSpan.FromMinutes(5);
        manager.MaxFailedAccessAttemptsBeforeLockout = 5;

        // Register two factor authentication providers. This application uses Phone and Emails as a step of receiving a code for verifying the user
        // You can write your own provider and plug it in here.
        manager.RegisterTwoFactorProvider("Phone Code", new PhoneNumberTokenProvider<ApplicationUser>
        {
            MessageFormat = "Your security code is {0}"
        });
        manager.RegisterTwoFactorProvider("Email Code", new EmailTokenProvider<ApplicationUser>
        {
            Subject = "Security Code",
            BodyFormat = "Your security code is {0}"
        });
        manager.EmailService = new EmailService();
        manager.SmsService = new SmsService();
        var dataProtectionProvider = options.DataProtectionProvider;
        if (dataProtectionProvider != null)
        {
            manager.UserTokenProvider = 
                new DataProtectorTokenProvider<ApplicationUser>(dataProtectionProvider.Create("ASP.NET Identity"));
        }
        return manager;
    }
}

推荐答案

问题出在UserManager上，这解决了问题.

The issue is with the UserManager, this solves the issue.

    ApplicationDbContext context = new ApplicationDbContext();

    var roleManager = new RoleManager<IdentityRole>(new RoleStore<IdentityRole>(context));
    var UserManager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(context));
    UserManager.UserValidator = new UserValidator<ApplicationUser>(UserManager)
    {
        AllowOnlyAlphanumericUserNames = false,
        RequireUniqueEmail = true
    };

    string password = System.Web.Security.Membership.GeneratePassword(12, 4);
    var user = new ApplicationUser();
    user.Email = model.Email;
    user.UserName = model.Email;

    string userPWD = password;

    var result = UserManager.Create(user, userPWD);

这篇关于使用C#ASP.NET MVC身份以编程方式创建用户的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！