[英].net-core authentication issue
我將在 .net-core 版本 2 的幫助下對用戶進行身份驗證。注冊后,“SqlNullValueException:數據為 Null。無法在 ZBBB93EF26E3C101FF11CDD21CAB08A9 值上調用此方法或屬性。” err 將出現在 signInManager 方法上。
我檢查了 model 和數據庫中的可空數據和所需數據。
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task < IActionResult > Login(LoginViewModel model, string returnUrl = null) {
ViewData["ReturnUrl"] = returnUrl;
if (ModelState.IsValid) {
var result = await signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, false);
var user = new ApplicationUser {
Email = model.Email
};
// ...
啟動.cs 文件
IConfigurationRoot configurationRoot;
public Startup(IHostingEnvironment env) {
configurationRoot = new ConfigurationBuilder().SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json").Build();
}
public void ConfigureServices(IServiceCollection services) {
services.AddIdentity < ApplicationUser, IdentityRole > ()
.AddEntityFrameworkStores < ApplicationDbContext > ()
.AddDefaultTokenProviders();
services.AddTransient < ApplicationDbContext > ();
services.AddTransient < IEmailSender, AuthMessageServices > ();
services.AddAuthentication();
services.AddMvc();
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env) {
if (env.IsDevelopment()) {
app.UseDeveloperExceptionPage();
app.UseBrowserLink();
} else {
app.UseExceptionHandler("/Error");
}
app.UseAuthentication();
app.UseStaticFiles();
app.UseMvc(routes => {
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
看起來您忘記初始化 ApplicationDbContext
services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
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