c# - 如何在 ASP .NET MVC 5 中为 AspNetUser 创建 SecurityStamp

Question

当我在应用程序运行时通过注册操作创建用户时，应用程序用户将获得 SecurityStamp。当我通过以下方式添加用户时:

if (!context.Users.Any()) {
                System.Diagnostics.Debug.WriteLine("INSIDE");
                var hasher = new PasswordHasher();
                try {
                    var users = new List<ApplicationUser> { 
                        new ApplicationUser{PasswordHash = hasher.HashPassword("TestPass44!"), Email = "informatyka4444@wp.pl", UserName = "informatyka4444@wp.pl"},
                        new ApplicationUser{PasswordHash = hasher.HashPassword("TestPass44!"), Email = "informatyka4445@wp.pl", UserName = "informatyka4445@wp.pl"}
                        };

                    users.ForEach(user => context.Users.AddOrUpdate(user));

                    context.SaveChanges();
                } catch (DbEntityValidationException e) {
                    System.Diagnostics.Debug.WriteLine("EXC: ");
                    foreach (DbEntityValidationResult result in e.EntityValidationErrors) {
                        foreach (DbValidationError error in result.ValidationErrors) {
                            System.Diagnostics.Debug.WriteLine(error.ErrorMessage);
                        }
                    }

                }
            }

用户没有得到安全戳:

然后当我想登录时，我得到:

问题:如何为用户生成SecurityStamp？

Answer 1

安全戳可以是任何你想要的。它经常被误认为是时间戳，但事实并非如此。如果用户实体发生某些变化，它将被 ASP.NET Identity 覆盖。如果您直接处理上下文，最好的方法是生成一个新的 Guid 并将其用作图章。这是一个简单的例子:

var users = new List<ApplicationUser> 
                { 
                    new ApplicationUser
                        {
                            PasswordHash = hasher.HashPassword("TestPass44!"), 
                            Email = "informatyka4444@wp.pl", 
                            UserName = "informatyka4444@wp.pl", 
                            SecurityStamp = Guid.NewGuid().ToString()
                        },
                    new ApplicationUser
                        {
                            PasswordHash = hasher.HashPassword("TestPass44!"),
                            Email = "informatyka4445@wp.pl", 
                            UserName = "informatyka4445@wp.pl", 
                            SecurityStamp = Guid.NewGuid().ToString()
                         }
                };