本地ASP Core 3.1 MVC应用程序，带Microsoft身份验证-单租户或多租户

public void ConfigureServices(IServiceCollection services)
{
    services.AddAuthentication(options =>
    {
        options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.Authority = "https://login.microsoftonline.com/{tenant-id}";
        options.Audience = "{client-id}";
    });

    services.AddControllersWithViews();
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }
    else
    {
        app.UseExceptionHandler("/Home/Error");
        app.UseHsts();
    }

    app.UseHttpsRedirection();
    app.UseStaticFiles();

    app.UseRouting();

    app.UseAuthentication();
    app.UseAuthorization();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllerRoute(
            name: "default",
            pattern: "{controller=Home}/{action=Index}/{id?}");
    });
}

public class TenantMiddleware
{
    private readonly RequestDelegate _next;

    public TenantMiddleware(RequestDelegate next)
    {
        _next = next;
    }

    public async Task InvokeAsync(HttpContext context)
    {
        var tenantId = context.Request.Headers["X-TenantID"].ToString();
        if (!string.IsNullOrEmpty(tenantId))
        {
            // 设置租户ID到上下文中
            context.Items["TenantId"] = tenantId;
        }

        await _next(context);
    }
}

public static class TenantMiddlewareExtensions
{
    public static IApplicationBuilder UseTenantMiddleware(this IApplicationBuilder builder)
    {
        return builder.UseMiddleware<TenantMiddleware>();
    }
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    // 其他中间件配置...

    app.UseTenantMiddleware();

    app.UseAuthentication();
    app.UseAuthorization();

    // 其他中间件配置...
}