在视图中获取ASP.NET身份当前用户 [英] Get ASP.NET Identity Current User In View

问题描述

我使用ASP.NET Identity 2.0和MVC.我需要在视图中记录用户的姓名，姓氏，电子邮件等.怎么能得到呢?我只能得到@ User.Identity，但是没有我的用户类的属性.

I use ASP.NET Identity 2.0 and MVC. I need to logged user's name,surname,email etc.. in view. How can get it? I can get just @User.Identity but there no my user class's property.

//in my view, i need here my ApplicationUser class
<div>
@User.Identity.Name
</div>

//ApplicationUser class
public class ApplicationUser : IdentityUser<int, CustomUserLogin, CustomUserRole,
CustomUserClaim> 
{
    public ApplicationUser()
    {
        this.CreatedDate = DateTime.Now;
    }

    public DateTime CreatedDate { get; set; }

    public string Name { get; set; }

    public string Surname { get; set; }

    public string TaxOffice { get; set; }
}

推荐答案

如果仅需要获取特定的属性，则可以将它们作为声明添加到ApplicationUser类中，如以下示例所示:

If there are only specific properties that you need to get, you can add them as claims in your ApplicationUser class like the following example:

public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser, int> manager)
{
    // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
    var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
    // Add custom user claims here
    userIdentity.AddClaim(new Claim("FullName", this.FullName));
    // or use the ClaimTypes enumeration
    return userIdentity;
}

这将从Startup.Auth类进行连接:

This gets wired up from the Startup.Auth class:

    SessionStateSection sessionStateSection = ConfigurationManager.GetSection("system.web/sessionState") as SessionStateSection;
    app.UseCookieAuthentication(new CookieAuthenticationOptions
    {
        AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
        LoginPath = new PathString("/account/login"),
        CookieName = sessionStateSection.CookieName + "_Application",
        Provider = new CookieAuthenticationProvider
        {
            // Enables the application to validate the security stamp when the user logs in.
            OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser, int>
                (
                     validateInterval: TimeSpan.FromMinutes(30),
                     regenerateIdentityCallback: (manager, user) => user.GenerateUserIdentityAsync(manager),
                     getUserIdCallback: (id) => (id.GetUserId<int>())
                ) 

        }
    });

然后，您可以访问声明(在视图或控制器中):

Then, you can access the claim (in a view or in a controller):

var claims = ((System.Security.Claims.ClaimsIdentity)User.Identity).Claims;
var claim = claims.SingleOrDefault(m => m.Type == "FullName");

这里没有表格身份验证票.

No forms authentication tickets here.

如果您希望获得完整的用户详细信息，则可以始终创建如下扩展方法:

If you want the full user details available, you could always create an extension method like the following:

public static ApplicationUser GetApplicationUser(this System.Security.Principal.IIdentity identity)
{
    if (identity.IsAuthenticated)
    {
        using (var db = new AppContext())
        {
            var userManager = new ApplicationUserManager(new ApplicationUserStore(db));
            return userManager.FindByName(identity.Name);
        }
    }
    else
    {
        return null;
    }        
}

并这样称呼它:

@User.Identity.GetApplicationUser();

但是，如果您一直都这样，我建议您进行缓存.

I would recommend caching if you're calling this all this time, however.

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