Question

我已经设置了创建示例的必要性。这是我的代码。

启动文件

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddRazorPages();
        services.AddServerSideBlazor();
        services.AddSingleton<WeatherForecastService>();
        services.AddSingleton<DoggoDataServices>();
        services.AddSingleton<AddDoggoServices>();
        services.AddSingleton<EventServices>();
        services.AddScoped<AuthenticationStateProvider, CustomAuthenticationStateProvider>();

App.razor

<Router AppAssembly="@typeof(Program).Assembly">
    <Found Context="routeData">
        <AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
    </Found>
    <NotFound>
        <CascadingAuthenticationState>
            <LayoutView Layout="@typeof(MainLayout)">
                <p>Sorry, there's nothing at this address.</p>
            </LayoutView>
        </CascadingAuthenticationState>
    </NotFound>
</Router>

customAuth

    public class CustomAuthenticationStateProvider : AuthenticationStateProvider
    {
        public override Task<AuthenticationState> GetAuthenticationStateAsync()
        {
            var identity = new ClaimsIdentity(new[]
            {
                new Claim(ClaimTypes.Name, "john.smith@gmail.com"),
            },   "apiauth_type");

            var user = new ClaimsPrincipal(identity);

            return Task.FromResult(new AuthenticationState(user));



        }
    }
}

索引

<AuthorizeView>
    <Authorized>
        <p>Welcome, @context.User.Identity.Name</p>
    </Authorized>
    <NotAuthorized>
        <p>Not Logged In</p>
    </NotAuthorized>
</AuthorizeView>

给出代码，索引页面仅显示“未登录”。我是否错过了一件太简单的事情以至于我忽略了它？我是新来的。

Answer 1

您忘记在app.razor中添加CascadingAuthenticationState

<CascadingAuthenticationState>
    <UserSession>
        <Router AppAssembly="@typeof(Program).Assembly">
            <Found Context="routeData">
                <AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
            </Found>
            <NotFound>
                <LayoutView Layout="@typeof(MainLayout)">
                    <p>Sorry, there's nothing at this address.</p>
                </LayoutView>
            </NotFound>
        </Router>
    </UserSession>
</CascadingAuthenticationState>

Answer 2

您可以使用默认模板。它有一个有效的例子。

Answer 3

您应该致电

NotifyAuthenticationStateChanged

使用自定义提供程序时，应在用户经过身份验证时通知它。例：您可以将此方法添加到“自定义”提供程序中：

public void MarkUserAsAuthenticated(Users u)
{
   // add your claims here. This is just an example.
    var identity = new ClaimsIdentity(new[]
            {
                new Claim(ClaimTypes.Name, u.UserName)
             });

    var user = new ClaimsPrincipal(identity);
     NotifyAuthenticationStateChanged(Task.FromResult(new AuthenticationState(user)));
}

请注意，当用户注销时，您应该创建并调用类似的方法：

public void LogoutUser()
{
            // reset identities and other related info (localstorage data if you have, etc).
            var identity = new ClaimsIdentity();
            var user = new ClaimsPrincipal(identity);
            NotifyAuthenticationStateChanged(Task.FromResult(new AuthenticationState(user)));
}

.NetCore blazor身份验证不起作用

3 个答案: