c# - 你必须调用 "WebSecurity.InitializeDatabaseConnection"但我知道

Question

*You must call the "WebSecurity.InitializeDatabaseConnection" method before you call any other method of the "WebSecurity" class. This call should be placed in an _AppStart.cshtml file in the root of your site.*

我收到这个错误，时断时续，随机出现，不确定是什么原因。在我的路线配置中。索引 Controller ，索引操作是默认的。这是定义:

[Authorize(Roles = "admin")]
[InitializeSimpleMembership]
public class IndexController : Controller

每次我重新启动应用程序时，如果我没有注销，我就会收到上述错误。然后我注销并再次登录，错误消失了。

为什么会这样？

我该如何解决这个问题？

如果有帮助，我正在使用 localdb。

Answer 1

出现此问题是因为 Application_Start() 函数仅在第一个用户操作时触发。但是 IndexController 在用户可以事件执行操作之前被触发。只需从您的项目中删除 [InitializeSimpleMembership]，这也让我很沮丧......

只需将以下代码添加到您的 global.asax

private static SimpleMembershipInitializer _initializer;
private static object _initializerLock = new object();
private static bool _isInitialized;

protected void Application_Start()
{
    AreaRegistration.RegisterAllAreas();
    WebApiConfig.Register(GlobalConfiguration.Configuration);
    FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
    RouteConfig.RegisterRoutes(RouteTable.Routes);
    BundleConfig.RegisterBundles(BundleTable.Bundles);
    AuthConfig.RegisterAuth();

    LazyInitializer.EnsureInitialized(ref _initializer, ref _isInitialized, ref _initializerLock);
}

public class SimpleMembershipInitializer
{
    public SimpleMembershipInitializer()
    {
        using (var context = new UsersContext())
            context.UserProfiles.Find(1);

        if (!WebSecurity.Initialized)
            WebSecurity.InitializeDatabaseConnection("DefaultConnection", "UserProfile", "UserId", "UserName", autoCreateTables: true);
    }
}

当然，请确保您创建了正确的 dbContext() 并设置了与您的项目相匹配的正确的 InitializeDatabaseConnections 属性。

氪