这是我的做法。
我决定使用 IPrincipal 而不是 IIdentity，因为这意味着我不必同时实现 IIdentity 和 IPrincipal。
创建接口
interface ICustomPrincipal : IPrincipal
{
int Id { get; set; }
string FirstName { get; set; }
string LastName { get; set; }
}
自定义主体
public class CustomPrincipal : ICustomPrincipal
{
public IIdentity Identity { get; private set; }
public bool IsInRole(string role) { return false; }
public CustomPrincipal(string email)
{
this.Identity = new GenericIdentity(email);
}
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
CustomPrincipalSerializeModel - 用于将自定义信息序列化到 FormsAuthenticationTicket 对象中的 userdata 字段中。
public class CustomPrincipalSerializeModel
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
登录方法 - 使用自定义信息设置 cookie
if (Membership.ValidateUser(viewModel.Email, viewModel.Password))
{
var user = userRepository.Users.Where(u => u.Email == viewModel.Email).First();
CustomPrincipalSerializeModel serializeModel = new CustomPrincipalSerializeModel();
serializeModel.Id = user.Id;
serializeModel.FirstName = user.FirstName;
serializeModel.LastName = user.LastName;
JavaScriptSerializer serializer = new JavaScriptSerializer();
string userData = serializer.Serialize(serializeModel);
FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket(
1,
viewModel.Email,
DateTime.Now,
DateTime.Now.AddMinutes(15),
false,
userData);
string encTicket = FormsAuthentication.Encrypt(authTicket);
HttpCookie faCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
Response.Cookies.Add(faCookie);
return RedirectToAction("Index", "Home");
}
Global.asax.cs - 读取 cookie 并替换 HttpContext.User 对象，这是通过覆盖 PostAuthenticateRequest 来完成的
protected void Application_PostAuthenticateRequest(Object sender, EventArgs e)
{
HttpCookie authCookie = Request.Cookies[FormsAuthentication.FormsCookieName];
if (authCookie != null)
{
FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value);
JavaScriptSerializer serializer = new JavaScriptSerializer();
CustomPrincipalSerializeModel serializeModel = serializer.Deserialize<CustomPrincipalSerializeModel>(authTicket.UserData);
CustomPrincipal newUser = new CustomPrincipal(authTicket.Name);
newUser.Id = serializeModel.Id;
newUser.FirstName = serializeModel.FirstName;
newUser.LastName = serializeModel.LastName;
HttpContext.Current.User = newUser;
}
}
在 Razor 视图中访问
@((User as CustomPrincipal).Id)
@((User as CustomPrincipal).FirstName)
@((User as CustomPrincipal).LastName)
在代码中：
(User as CustomPrincipal).Id
(User as CustomPrincipal).FirstName
(User as CustomPrincipal).LastName
我认为代码是不言自明的。如果不是，请告诉我。
此外，为了使访问更容易，您可以创建一个基本控制器并覆盖返回的用户对象 (HttpContext.User)：
public class BaseController : Controller
{
protected virtual new CustomPrincipal User
{
get { return HttpContext.User as CustomPrincipal; }
}
}
然后，对于每个控制器：
public class AccountController : BaseController
{
// ...
}
这将允许您访问代码中的自定义字段，如下所示：
User.Id
User.FirstName
User.LastName
但这在视图内部不起作用。为此，您需要创建一个自定义 WebViewPage 实现：
public abstract class BaseViewPage : WebViewPage
{
public virtual new CustomPrincipal User
{
get { return base.User as CustomPrincipal; }
}
}
public abstract class BaseViewPage<TModel> : WebViewPage<TModel>
{
public virtual new CustomPrincipal User
{
get { return base.User as CustomPrincipal; }
}
}
使其成为 Views/web.config 中的默认页面类型：
<pages pageBaseType="Your.Namespace.BaseViewPage">
<namespaces>
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
<add namespace="System.Web.Routing" />
</namespaces>
</pages>
在视图中，您可以像这样访问它：
@User.FirstName
@User.LastName