ASP.NET MVC4 身份认证和授权

        寒假准备对我们团队开发的各个小系统进行整合和重写，由于这些系统需求分析并不够仔细，所以在后期缝缝补补，加上人员交替，使得代码结构凌乱不堪，让我这个有代码洁癖的人难受的要死，所以打算重新梳理，由于我们团队主攻asp.net mvc开发，（我对asp.net mvc的学习和使用是从2开始，到现在我们项目基本用的是3），重新写一遍系统，当然要有点新的尝试，虽然现在asp.net mvc5已发布，但感觉使用asp.net mvc4开发的人都不多，何况是5，而且出现问题估计网上搜索解决，也比较麻烦，所以还是一步一步来，用mvc4吧：

环境：

1、数据库：SQL Server 2008

2、开发：Visual Studio 2013/Framework4.0

开始构建基础框架
在VS2013中新建一个mvc4项目，新增加了些和以前不同的文件夹，删除掉自己不需要的，然后把以前项目的静态页面集成入项目，按结构把母板页，局部页设计完成，对照了些以前系统的各个模块，觉得登录，注册这块还是自己来完成搭建较好，看了下VS2013的mvc4项目的Account的东西，新增了SimpleMembership、WebMatrix等的一些东西，以前没接触过，看来mvc3到mvc4还是有点变化的（除了有打包功能等）
微软提供一套身份认证与授权的东西，但都是用微软自己的数据库字段等等，我们这种小作坊开发有点用不上，想用自己的数据库和字段结构，往往我们一般是将登录成功后的信息按情况存入session或是cookie中。
       但我代码洁癖的性格不能容忍这样的写法，我一定要用微软的身份认证与授权的写法规范，来实现。

       之前经过网上查资料，我们在asp.net mvc3项目中Account的写法如下：
       所有的都在AccountModel中修改：
       Services区域：在对IMembershipService的接口实例化方法时：重新申明自己定义的MembershipProvider（对MembershipProvider的方法的重写），结束。

       但asp.net mvc4默认的AccountModel写法变了，新增了SimpleMembership,WebMatrix等，废话少说，经过MSDN查找资料和Stack Overflow看老外的介绍，再结合反编译WebMatrix的dll文件，大概看出：其实webMatrix就是对mvc3的account的封装，然后SimpleMembership就是自定义出SimpleMembership的数据库和自定义字段，那对于我们来说SimpleMembership是不需要的，我们要构建自己的MyMembership，然后该怎么做呢？
       首先：webconfig中，禁用SimpleMembership
     
        
     
      然后：告诉WebMatrix，我们要用的是哪个Membership？，即我们自己的MyMembership：Membership
     
     
   
   
     
       
        MyMembershipProvider的命名空间.MyMembershipProvider" />
     
   
     最后：新建类，实现ExtendedMembershipProvider的方法
    public class MyMembershipProvider : ExtendedMembershipProvider（引用using WebMatrix.WebData;）
    {
        public override bool ConfirmAccount(string accountConfirmationToken)
        {
            throw new NotImplementedException();
        }

        public override bool ConfirmAccount(string userName, string accountConfirmationToken)
        {
            throw new NotImplementedException();
        }

        public override string CreateAccount(string userName, string password, bool requireConfirmationToken)
        {
            throw new NotImplementedException();
        }

        public override string CreateUserAndAccount(string userName, string password, bool requireConfirmation, IDictionary values)
        {
            throw new NotImplementedException();
        }

        public override bool DeleteAccount(string userName)
        {
            throw new NotImplementedException();
        }

        public override string GeneratePasswordResetToken(string userName, int tokenExpirationInMinutesFromNow)
        {
            throw new NotImplementedException();
        }

        public override ICollection GetAccountsForUser(string userName)
        {
            throw new NotImplementedException();
        }

        public override DateTime GetCreateDate(string userName)
        {
            throw new NotImplementedException();
        }

        public override DateTime GetLastPasswordFailureDate(string userName)
        {
            throw new NotImplementedException();
        }

        public override DateTime GetPasswordChangedDate(string userName)
        {
            throw new NotImplementedException();
        }

        public override int GetPasswordFailuresSinceLastSuccess(string userName)
        {
            throw new NotImplementedException();
        }

        public override int GetUserIdFromPasswordResetToken(string token)
        {
            throw new NotImplementedException();
        }

        public override bool IsConfirmed(string userName)
        {
            throw new NotImplementedException();
        }

        public override bool ResetPasswordWithToken(string token, string newPassword)
        {
            throw new NotImplementedException();
        }

        public override string ApplicationName
        {
            get
            {
                throw new NotImplementedException();
            }
            set
            {
                throw new NotImplementedException();
            }
        }

        public override bool ChangePassword(string username, string oldPassword, string newPassword)
        {
            throw new NotImplementedException();
        }

        public override bool ChangePasswordQuestionAndAnswer(string username, string password, string newPasswordQuestion, string newPasswordAnswer)
        {
            throw new NotImplementedException();
        }

        public override MembershipUser CreateUser(string username, string password, string email, string passwordQuestion, string passwordAnswer, bool isApproved, object providerUserKey, out MembershipCreateStatus status)
        {
            throw new NotImplementedException();
        }

        public override bool DeleteUser(string username, bool deleteAllRelatedData)
        {
            throw new NotImplementedException();
        }

        public override bool EnablePasswordReset
        {
            get { throw new NotImplementedException(); }
        }

        public override bool EnablePasswordRetrieval
        {
            get { throw new NotImplementedException(); }
        }

        public override MembershipUserCollection FindUsersByEmail(string emailToMatch, int pageIndex, int pageSize, out int totalRecords)
        {
            throw new NotImplementedException();
        }

        public override MembershipUserCollection FindUsersByName(string usernameToMatch, int pageIndex, int pageSize, out int totalRecords)
        {
            throw new NotImplementedException();
        }

        public override MembershipUserCollection GetAllUsers(int pageIndex, int pageSize, out int totalRecords)
        {
            throw new NotImplementedException();
        }

        public override int GetNumberOfUsersOnline()
        {
            throw new NotImplementedException();
        }

        public override string GetPassword(string username, string answer)
        {
            throw new NotImplementedException();
        }

        public override MembershipUser GetUser(string username, bool userIsOnline)
        {
            throw new NotImplementedException();
        }

        public override MembershipUser GetUser(object providerUserKey, bool userIsOnline)
        {
            throw new NotImplementedException();
        }

        public override string GetUserNameByEmail(string email)
        {
            throw new NotImplementedException();
        }

        public override int MaxInvalidPasswordAttempts
        {
            get { throw new NotImplementedException(); }
        }

        public override int MinRequiredNonAlphanumericCharacters
        {
            get { throw new NotImplementedException(); }
        }

        public override int MinRequiredPasswordLength
        {
            get { throw new NotImplementedException(); }
        }

        public override int PasswordAttemptWindow
        {
            get { throw new NotImplementedException(); }
        }

        public override MembershipPasswordFormat PasswordFormat
        {
            get { throw new NotImplementedException(); }
        }

        public override string PasswordStrengthRegularExpression
        {
            get { throw new NotImplementedException(); }
        }

        public override bool RequiresQuestionAndAnswer
        {
            get { throw new NotImplementedException(); }
        }

        public override bool RequiresUniqueEmail
        {
            get { throw new NotImplementedException(); }
        }

        public override string ResetPassword(string username, string answer)
        {
            throw new NotImplementedException();
        }

        public override bool UnlockUser(string userName)
        {
            throw new NotImplementedException();
        }

        public override void UpdateUser(MembershipUser user)
        {
            throw new NotImplementedException();
        }

        public override bool ValidateUser(string username, string password)
        {
            throw new NotImplementedException();
        }
    }