mvc实体框架：使用数据库登录

Question

我在Microsoft sql server express中创建了一个数据库。我需要能够使用我的数据库登录Mvc 2应用程序（不是AcountController上现有的数据库，意味着MembershipService）

我只需要用我的数据库替换MemeberAhipService。我该怎么做（我首先使用实体​​框架代码）。我不需要在visual studio中创建模型。我有usermodel，userContext：Db。我想我也需要存储库。谁能告诉我一个例子，告诉我步骤？

Answer 1

您可以创建自己的MembershipService。

示例：

新的MembershipService.cs（或任何你想要的）

public class MembershipService
{
    public bool IsUserValid(string username, string password)
    {
         var db = new DatabaseContext();
         var user = db.GetUser(username, password);
         // Or however you want to get your data, via Context or Repository
         return (user != null); 
    }
}

新FormsClass.cs

public class FormService
{
     public void SignIn(string username, List<string> roles)
     {

            FormsAuthenticationTicket authTicket = new
                            FormsAuthenticationTicket(1,            // Version
                            username,                               // Username
                            DateTime.Now,                           // Creation
                            DateTime.Now.AddMinutes(30),            // Expiration
                            false,                                  // Persistent
                            string.Join(",", roles.ToArray()));     // Roles

            string encTicket = FormsAuthentication.Encrypt(authTicket);
            HttpContext.Current.Response.Cookies.Add(new HttpCookie(FormsAuthentication.FormsCookieName, encTicket));

            GenericIdentity id = new GenericIdentity(username);
            HttpContext.Current.User = new GenericPrincipal(id, roles.ToArray());
     }
}

在Global.asax中：

        protected void Application_PostAuthenticateRequest(object sender, EventArgs e)
        {
            HttpCookie authCookie = HttpContext.Current.Request.Cookies[FormsAuthentication.FormsCookieName];
            if (authCookie != null)
            {
                string encTicket = authCookie.Value;
                if (!String.IsNullOrEmpty(encTicket))
                {
                    FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(encTicket);
                    FormsIdentity id = (FormsIdentity)Context.User.Identity;
                    var roles = ticket.UserData.Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);

                    GenericPrincipal prin = new GenericPrincipal(id, roles);
                    HttpContext.Current.User = prin;

                }
            }

        }