Question

我有一个带有帐户控制器的ASP.NET MVC5 Internet应用程序。

我试图添加角色并让用户选择在singup上选择3个角色，我的注册方法如下：

        [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public async Task<ActionResult> Register(RegisterViewModel model)
    {
        if (ModelState.IsValid)
        {
            if (!Roles.RoleExists("user"))
            {
                Roles.CreateRole("user");
            }

            if (!Roles.RoleExists("superuser"))
            {
                Roles.CreateRole("superuser");
            }

            if (!Roles.RoleExists("admin"))
            {
                Roles.CreateRole("admin");
            }

            var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
            var result = await UserManager.CreateAsync(user, model.Password);
            if (result.Succeeded)
            {


                var currentUser = UserManager.FindByName(user.UserName);

                string userType = null;
                switch (model.Type)
                {
                    case 1:
                        userType = "user";                         
                        break;
                    case 2:
                        userType = "superuser";
                        break;
                    case 3:
                        userType = "admin";
                        break;
                    default:
                        return View(model);
                        break;
                }


                var roleresult = UserManager.AddToRole(currentUser.Id,userType);
                return RedirectToAction("Index", "Home");
            }
            AddErrors(result);
        }

        return View(model);
    }

当我尝试注册并且代码到达if (!Roles.RoleExists("user"))时，网站会挂起大约10秒钟，我收到以下错误：

SQL Network Interfaces, error: 26 


    [SqlException (0x80131904): Der opstod en netværksrelateret eller forekomstspecifik fejl, da det blev forsøgt at oprette forbindelse til SQL Server. Serveren blev ikke fundet, eller der var ikke adgang til den. Kontroller, at forekomstnavnet er korrekt, og at SQL Server er konfigureret til at tillade fjernforbindelser. (provider: SQL Network Interfaces, error: 26 - Fejl ved søgning efter angivet server/forekomst.)]
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +5340655
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +244
   System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, Boolean withFailover) +5350915
   System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover) +145
   System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer timeout) +922
   System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance) +307
   System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData) +518
   System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) +5353725
   System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions) +38
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +5355926
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +146
   System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +16
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +94
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +110
   System.Data.SqlClient.SqlConnection.Open() +96
   System.Web.Management.SqlServices.GetSqlConnection(String server, String user, String password, Boolean trusted, String connectionString) +75

[HttpException (0x80004005): Der kan ikke oprettes forbindelse til SQL Server-databasen.]
   System.Web.Management.SqlServices.GetSqlConnection(String server, String user, String password, Boolean trusted, String connectionString) +130
   System.Web.Management.SqlServices.SetupApplicationServices(String server, String user, String password, Boolean trusted, String connectionString, String database, String dbFileName, SqlFeatures features, Boolean install) +89
   System.Web.Management.SqlServices.Install(String database, String dbFileName, String connectionString) +27
   System.Web.DataAccess.SqlConnectionHelper.CreateMdfFile(String fullFileName, String dataDir, String connectionString) +386

我不知道如何将错误消息更改为英语。

在web.config中的

我将<roleManager enabled="true" />添加到system.web，我的connectionstring看起来像这样：

<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=lmjzf199gd.database.windows.net;Initial Catalog=lenioDb;Persist Security Info=True;User ID=lenio;Password=*******;Integrated Security=False;Encrypt=False;TrustServerCertificate=False;" providerName="System.Data.SqlClient" />

显然，密码未设置为＆＃34; *******＆＃34;在连接字符串中。

我使用的是天蓝色的数据库。

Answer 1

在<roleManager enabled="true">下，您必须指定角色提供程序以及正确的连接字符串（这是问题）。例如：

<roleManager enabled="true" cacheRolesInCookie="true" cookieName=".ASPROLES" defaultProvider="DefaultRoleProvider">
    <providers>
        <add connectionStringName="DefaultConnection" applicationName="/" name="DefaultRoleProvider"
        type="System.Web.Security.SqlRoleProvider"/>
    </providers>
</roleManager>

但首先要确保您的数据库已经安装了aspnet_regsql（see this link），以便默认提供程序工作所需的所有表和sql过程。

Roles.RoleExists（）导致SQL网络接口，错误：26

1 个答案: