Question

我有一个扩展IdentityUser的User类。我试图获取在IdentityUser中声明的属性（例如电子邮件），但是当我调用它们时，值似乎没有设置。如何正确访问IdentityUser属性？它们应该在登录时设置。正确设置了其他属性（名为LGID）。

我如何调用属性

var identity = (ClaimsIdentity)User.Identity;
var user = new ApplicationUser(identity);
//do something with user.Email

ApplicationUser.cs

public class ApplicationUser : IdentityUser
    {
        public string LGID { get; } = "";

        public ApplicationUser() { }

        public ApplicationUser(ClaimsIdentity identity)
        {
            IEnumerable<Claim> claims = identity.Claims;
            foreach (Claim c in claims)
            {
                if (c.Type == "LGID")
                    LGID = c.Value;
            }
        }
    }

IdentityUser.cs

namespace Microsoft.AspNetCore.Identity
{
    //
    // Summary:
    //     The default implementation of Microsoft.AspNetCore.Identity.IdentityUser`1 which
    //     uses a string as a primary key.
    public class IdentityUser : IdentityUser<string>
    {
        //
        // Summary:
        //     Initializes a new instance of Microsoft.AspNetCore.Identity.IdentityUser.
        //
        // Remarks:
        //     The Id property is initialized to form a new GUID string value.
        public IdentityUser();
        //
        // Summary:
        //     Initializes a new instance of Microsoft.AspNetCore.Identity.IdentityUser.
        //
        // Parameters:
        //   userName:
        //     The user name.
        //
        // Remarks:
        //     The Id property is initialized to form a new GUID string value.
        public IdentityUser(string userName);
    }
}

登录方法（自动生成）

    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Login(LoginViewModel model, string returnUrl = null)
    {
        ViewData["ReturnUrl"] = returnUrl;
        if (ModelState.IsValid)
        {
            // This doesn't count login failures towards account lockout
            // To enable password failures to trigger account lockout, set lockoutOnFailure: true
            var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);
            if (result.Succeeded)
            {
                _logger.LogInformation("User logged in.");
                return RedirectToLocal(returnUrl);
            }
            if (result.RequiresTwoFactor)
            {
                return RedirectToAction(nameof(LoginWith2fa), new { returnUrl, model.RememberMe });
            }
            if (result.IsLockedOut)
            {
                _logger.LogWarning("User account locked out.");
                return RedirectToAction(nameof(Lockout));
            }
            else
            {
                ModelState.AddModelError(string.Empty, "Invalid login attempt.");
                return View(model);
            }
        }

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

Answer 1

您需要先设置它们xD
登录后（！）在您想要电子邮件地址的操作中调用它。

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获取扩展类的属性返回空字符串

1 个答案: