我创造了CustomClaimType
储藏user id
:
public static class CustomClaimTypes
{
public const string UserId = "UserId";
}
当用户登录时,我设置它:
var claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.Name, doc_session.ufname + " " + doc_session.ulname));
claims.Add(new Claim(CustomClaimTypes.UserId, doc_session.isci_id.Value.ToString()));
ClaimsIdentity userIdentity = new ClaimsIdentity(claims,"Identity.Application");
ClaimsPrincipal principal = new ClaimsPrincipal(userIdentity);
我还创建了自定义身份扩展:
public static class IdentityExtensions
{
public static int GetUserId(this IIdentity identity)
{
ClaimsIdentity claimsIdentity = identity as ClaimsIdentity;
Claim claim = claimsIdentity?.FindFirst(CustomClaimTypes.UserId);
if (claim == null)
return 0;
return int.Parse(claim.Value);
}
public static string GetName(this IIdentity identity)
{
ClaimsIdentity claimsIdentity = identity as ClaimsIdentity;
Claim claim = claimsIdentity?.FindFirst(ClaimTypes.Name);
return claim?.Value ?? string.Empty;
}
}
但当我打电话时User.Identity.GetUserId();
我得到 0(空)结果。
要向身份添加额外的声明,您可以实现自定义CustomClaimsPrincipalFactory
.
-
CustomClaimsPrincipalFactory
public class CustomClaimsPrincipalFactory : UserClaimsPrincipalFactory<IdentityUser<int>>
{
public CustomClaimsPrincipalFactory(UserManager<IdentityUser<int>> userManager,
IOptions<IdentityOptions> optionsAccessor)
: base(userManager, optionsAccessor)
{
}
public async override Task<ClaimsPrincipal> CreateAsync(IdentityUser<int> user)
{
var principal = await base.CreateAsync(user);
// Add your claims here
((ClaimsIdentity)principal.Identity).AddClaims(
new[] { new Claim(ClaimTypes.Name, user.UserName),
new Claim(CustomClaimTypes.UserId, user.Id.ToString())
});
return principal;
}
}
-
登记CustomClaimsPrincipalFactory
public void ConfigureServices(IServiceCollection services)
{
services.Configure<CookiePolicyOptions>(options =>
{
// This lambda determines whether user consent for non-essential cookies is needed for a given request.
options.CheckConsentNeeded = context => true;
options.MinimumSameSitePolicy = SameSiteMode.None;
});
services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(
Configuration.GetConnectionString("DefaultConnection")));
services.AddDefaultIdentity<IdentityUser<int>>()
.AddEntityFrameworkStores<ApplicationDbContext>();
services.AddScoped<IUserClaimsPrincipalFactory<IdentityUser<int>>, CustomClaimsPrincipalFactory>();
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
}
-
IdentityExtensions
public static class IdentityExtensions
{
public static int GetUserId(this ClaimsPrincipal identity)
{
Claim claim = identity?.FindFirst(CustomClaimTypes.UserId);
if (claim == null)
return 0;
return int.Parse(claim.Value);
}
public static string GetName(this ClaimsPrincipal identity)
{
Claim claim = identity?.FindFirst(ClaimTypes.Name);
return claim?.Value ?? string.Empty;
}
}
-
Useage
public IActionResult About()
{
var claims = User.Claims;
var userId = User.GetUserId();
var userName = User.GetName();
ViewData["Message"] = "Your application description page.";
return View();
}
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