c# - ClaimsPrincipal.Current.FindFirst 尝试创建一个 sql 数据库

Question

ClaimsPrincipal.Current.FindFirst 如果未找到所提供的声明，则应返回 null，但它正在尝试查找角色，找不到它们，然后尝试在我的 app_Data 中创建一个 mdf 文件文件夹...

我应该捕获并吞下异常，还是有办法告诉它不要尝试创建数据库文件？

这是堆栈跟踪:

    System.UnauthorizedAccessException: Access to the path 'C:\inetpub\Web\App_Data' is denied.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, Object dirSecurityObj, Boolean checkHost)
   at System.IO.Directory.InternalCreateDirectoryHelper(String path, Boolean checkHost)
   at System.Web.DataAccess.SqlConnectionHelper.CreateMdfFile(String fullFileName, String dataDir, String connectionString)
   at System.Web.DataAccess.SqlConnectionHelper.EnsureDBFile(String connectionString)
   at System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation)
   at System.Web.Security.SqlRoleProvider.GetRolesForUser(String username)
   at WebMatrix.WebData.SimpleRoleProvider.GetRolesForUser(String username)
   at System.Web.Security.RolePrincipal.GetRoles()
   at System.Web.Security.RoleClaimProvider.<get_Claims>d__0.MoveNext()
   at System.Security.Claims.ClaimsIdentity.<get_Claims>d__0.MoveNext()
   at System.Security.Claims.ClaimsIdentity.FindFirst(String type)
   at System.Security.Claims.ClaimsPrincipal.FindFirst(String type)

Answer 1

遇到了同样的问题。将以下内容添加到 web.config 中的 appSettings 为我解决了这个问题

<appSettings>
   <add key="enableSimpleMembership" value="false"/>
</appSettings>