也许我想念一些东西但是,我阅读了大量关于使用.NET Core 2.0进行身份验证和授权的文档和文章,但我没有找到任何关于用户管理的内容.
我想要实现的是拥有一个管理员用户界面,可以创建用户,列出所有现有用户并将其分配给预定义角色和/或预定义策略.
我没有成功就试着没有运气(尝试使用IEnumerable< IdentityUser>等模型时遇到无效的构造函数时遇到问题:
InvalidOperationException: A suitable constructor for type ‘System.Collections.Generic.IEnumerable`1[Microsoft.AspNetCore.Identity.IdentityUser]’
could not be located. Ensure the type is concrete and services are
registered for all parameters of a public constructor.
而且我无法在任何Controller中获得RoleManager.它适用于UserManager,但从不使用RoleManager.我补充道
services.AddIdentity<ApplicationUser, IdentityRole>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultTokenProviders();
到初创公司,所以我教它将自动注入DI …
ApplicationUser定义如下:
namespace KaraokeServices.Data
{
public class ApplicationUser : IdentityUser
{
}
}
我定义了一个UserController,例如:
namespace KaraokeServices.Controllers
{
[Route("[controller]/[action]")]
public class UserController : Controller
{
private readonly UserManager<ApplicationUser> userManager;
public UserController(ApplicationDbContext pContext, SignInManager<ApplicationUser> pSignInManager, ILogger<AccountController> logger)
{
userManager = pSignInManager.UserManager;
}
[HttpGet]
public IActionResult Index()
{
List<ApplicationUser> users = new List<ApplicationUser>();
users = userManager.Users.ToList();
return View(users);
}
}
}
这是User / Index.cshtml
@page
@model IEnumerable<ApplicationUser>
@{
ViewData["Title"] = "Gestion des utilisateurs";
}
<h2>@ViewData["Title"]</h2>
<form method="post">
<table class="table">
<thead>
<tr>
<th>Courriel</th>
<th>Roles</th>
<th>Actions</th>
</tr>
</thead>
<tbody>
@foreach (var user in Model)
{
<tr>
<td>@user.Email</td>
<td></td>
<td>
<a asp-page="./Edit" asp-route-id="@user.Id">Éditer</a>
<button type="submit" asp-page-handler="delete" asp-route-id="@user.Id">
Effacer
</button>
</td>
</tr>
}
</tbody>
</table>
<a asp-page="./Create">Créer</a>
</form>
但我总是被这个错误所困扰……
我做错了什么?
最佳答案 代替
services.AddIdentity<ApplicationUser, IdentityRole>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultTokenProviders();
添加经理
services.AddIdentity<User, Role>()
.AddEntityFrameworkStores<AuthContext>()
.AddUserManager<UserManager>()
.AddSignInManager<SignInManager>()
.AddDefaultTokenProviders();
试试吧
@model ICollection< ApplicationUser>代替?