实现自定义 MembershipUser 和自定义 MembershipProvider

Question

我尝试在自己的数据库中使用自定义 MembershipUser 实现自定义 MembershipPriver （具有特定的用户表模型）：

这是完全不同的文件：

iTwitterMembershipProvider.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Collections.Specialized;
using iTwitter.Models;


 public class iTwitterMembershipProvider : MembershipProvider
{

    public override string ApplicationName
    {
        get { return _ApplicationName; }
        set { _ApplicationName = value; }
    }

    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)
    {
        return false;
    }

    public override iTwitterMembershipUser CreateUser(string login,
                                                      string password,
                                          string email,
                                          string tokenKey,
                                          string tokenSecret,
                                          string twitterUserId,
                                          object providerUserKey,
                                          out MembershipCreateStatus status)
    {
        ValidatePasswordEventArgs args = new ValidatePasswordEventArgs(login,
                                                                       password,
                                                                       true);

        OnValidatingPassword(args);

        if (args.Cancel)
        {
            status = MembershipCreateStatus.InvalidPassword;
            return null;
        }

        if (RequiresUniqueEmail && GetUserNameByEmail(email) != "")
        {
            status = MembershipCreateStatus.DuplicateEmail;
            return null;
        }

        iTwitterMembershipUser u = GetUser(login, false);

        if (u == null)
        {
            UserRepository _user = new UserRepository();

            _user.CreateUser(login, password, email);
            status = MembershipCreateStatus.Success;

            return GetUser(login, false);
        }
        else
        {
            status = MembershipCreateStatus.DuplicateUserName;
        }

        return null;
    }

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

    public override bool EnablePasswordReset
    {
        get { return _EnablePasswordReset; }
    }

    public override bool EnablePasswordRetrieval
    {
        get { return _EnablePasswordRetrieval; }
    }

    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 iTwitterMembershipUser GetUser(string login, bool userIsOnline)
    {
        UserRepository _user = new UserRepository();

        return _user.GetUser(login);
    }

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

    public override string GetUserNameByEmail(string email)
    {
        UserRepository _user = new UserRepository();

        return _user.GetUserNameByEmail(email);
    }

    public override int MaxInvalidPasswordAttempts
    {
        get { return _MaxInvalidPasswordAttempts; }
    }

    public override int MinRequiredNonAlphanumericCharacters
    {
        get { return _MinRequiredNonalphanumericCharacters; }
    }

    public override int MinRequiredPasswordLength
    {
        get { return _MinRequiredPasswordLength; }
    }

    public override int PasswordAttemptWindow
    {
        get { return _PasswordAttemptWindow; }
    }

    public override MembershipPasswordFormat PasswordFormat
    {
        get { return _PasswordFormat; }
    }

    public override string PasswordStrengthRegularExpression
    {
        get { return _PasswordStrengthRegularExpression; }
    }

    public override bool RequiresQuestionAndAnswer
    {
        get { return _RequiresQuestionAndAnswer; }
    }

    public override bool RequiresUniqueEmail
    {
        get { return _RequiresUniqueEmail; }
    }

    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 login, string password)
    {
        if (login == password)
        {
            return true;
        }
        else
        {
            return false;
        }
    }


    //
    // A helper function to retrieve config values from the configuration file.
    //  

    private string GetConfigValue(string configValue, string defaultValue)
    {
        if (string.IsNullOrEmpty(configValue))
            return defaultValue;

        return configValue;
    }

    //
    // Properties from web.config, default all to False
    //
    private string _ApplicationName;
    private bool _EnablePasswordReset;
    private bool _EnablePasswordRetrieval = false;
    private bool _RequiresQuestionAndAnswer = false;
    private bool _RequiresUniqueEmail = true;
    private int _MaxInvalidPasswordAttempts;
    private int _PasswordAttemptWindow;
    private int _MinRequiredPasswordLength;
    private int _MinRequiredNonalphanumericCharacters;
    private string _PasswordStrengthRegularExpression;
    private MembershipPasswordFormat _PasswordFormat = MembershipPasswordFormat.Hashed;

    public override void Initialize(string name, NameValueCollection config)
    {
        if (config == null)
            throw new ArgumentNullException("config");

        if (name == null || name.Length == 0)
            name = "CustomMembershipProvider";

        if (String.IsNullOrEmpty(config["description"]))
        {
            config.Remove("description");
            config.Add("description", "Custom Membership Provider");
        }

        base.Initialize(name, config);

        _ApplicationName = GetConfigValue(config["applicationName"],
                      System.Web.Hosting.HostingEnvironment.ApplicationVirtualPath);
        _MaxInvalidPasswordAttempts = Convert.ToInt32(
                      GetConfigValue(config["maxInvalidPasswordAttempts"], "5"));
        _PasswordAttemptWindow = Convert.ToInt32(
                      GetConfigValue(config["passwordAttemptWindow"], "10"));
        _MinRequiredNonalphanumericCharacters = Convert.ToInt32(
                      GetConfigValue(config["minRequiredNonalphanumericCharacters"], "1"));
        _MinRequiredPasswordLength = Convert.ToInt32(
                      GetConfigValue(config["minRequiredPasswordLength"], "6"));
        _EnablePasswordReset = Convert.ToBoolean(
                      GetConfigValue(config["enablePasswordReset"], "true"));
        _PasswordStrengthRegularExpression = Convert.ToString(
                       GetConfigValue(config["passwordStrengthRegularExpression"], ""));

    }
}

iTwitterMembershipUser.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using iTwitter.Models;

namespace iTwitter.Models
{
    public class iTwitterMembershipUser : MembershipUser
    {
        private string _tokenKey;
        private string _tokenSecret;
        private string _twitterUserId;
        private string _login;
        private string _email;
        private int _providerUserKey;

        public string tokenKey
        {
            get { return _tokenKey; }
            set { _tokenKey = value; }
        }

        public string tokenSecret
        {
            get { return _tokenSecret; }
            set { _tokenSecret = value; }
        }

        public string twitterUserId
        {
            get { return _twitterUserId; }
            set { _twitterUserId = value; }
        }

        public string login
        {
            get { return _login; }
            set { _login = value; }
        }

        public string email
        {
            get { return _email; }
            set { _email = value; }
        }

        public int providerUserKey
        {
            get { return _providerUserKey; }
            set { _providerUserKey = value; }
        }

        public iTwitterMembershipUser(object providername,
                                  string login,
                                  int providerUserKey,
                                  string email,
                                  string tokenKey,
                                  string tokenSecret,
                                  string twitterUserId)
        {
            this.tokenKey = tokenKey;
            this.tokenSecret = tokenSecret;
            this.twitterUserId = twitterUserId;
            this.login = login;
            this.providerUserKey = providerUserKey;
            this.email = email;
        }




    }
}

webconfig.cs

<?xml version="1.0"?>

<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=152368
  -->

<configuration>
  <connectionStrings>
  <add name="iTwitterDB" connectionString="metadata=res://*/Models.iTwitter.csdl|res://*/Models.iTwitter.ssdl|res://*/Models.iTwitter.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\iTwitter.mdf;Integrated Security=True;User Instance=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /></connectionStrings>

  <system.web>
    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Mvc, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" /></assemblies>
    </compilation>

    <authentication mode="Forms">
      <forms loginUrl="~/Account/LogOn" timeout="2880" />
    </authentication>

    <membership defaultProvider="CustomMembershipProvider">
      <providers>
        <clear />
        <add name="CustomMembershipProvider" type="iTwitterMembershipProvider" connectionStringName="iTwitterDB" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
      </providers>
    </membership>

    <profile>
      <providers>
        <clear />
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="iTwitterDB" applicationName="/" />
      </providers>
    </profile>

    <roleManager enabled="false">
      <providers>
        <clear />
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="iTwitterDB" applicationName="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
      </providers>
    </roleManager>

    <pages>
      <namespaces>
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
      </namespaces>
    </pages>
  </system.web>

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true" />
  </system.webServer>

  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0" newVersion="2.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

iTwitterDB ：

id int
login varchar(50)
password varchar(100) (MD5 Password Hash)
email varchar(100)
tokenKey varchar(100)
tokenSecret varchar(100)
twitterUserId varchar(100)

UserRepository.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;

namespace iTwitter.Models
{
    public class UserRepository
    {
        public iTwitterMembershipUser CreateUser(string login, string password, string email)
        {
            using (iTwitterDB db = new iTwitterDB())
            {
                Users user = new Users();

                user.login = login;
                user.email = email;
                user.password = password;
                user.tokenKey = "0";
                user.tokenSecret = "0";
                user.twitterUserId = "0";

                db.AddToUsers(user);
                db.SaveChanges();

                return GetUser(login);
            }
        }

        public string GetUserNameByEmail(string email)
        {
            using (iTwitterDB db = new iTwitterDB())
            {
                var result = from u in db.Users where (u.email == email) select u;

                if (result.Count() != 0)
                {
                    var dbuser = result.FirstOrDefault();

                    return dbuser.login;
                }
                else
                {
                    return "";
                }
            }
        }

        public iTwitterMembershipUser GetUser(string login)
        {
            using (iTwitterDB db = new iTwitterDB())
            {
                var result = from u in db.Users where (u.login == login) select u;

                if (result.Count() != 0)
                {
                    var dbuser = result.FirstOrDefault();

                    string _login = dbuser.login;
                    int _providerUserKey = dbuser.id;
                    string _email = dbuser.email;
                    string _tokenKey = dbuser.tokenKey;
                    string _tokenSecret = dbuser.tokenSecret;
                    string _twitterUserId = dbuser.twitterUserId;


                    iTwitterMembershipUser user = new iTwitterMembershipUser("CustomMembershipProvider",
                                                              _login,
                                                              _providerUserKey,
                                                              _email,
                                                              _tokenKey,
                                                              _tokenSecret,
                                                              _twitterUserId);

                    return user;
                }
                else
                {
                    return null;
                }
            }
        }
    }
}

我在执行过程中遇到了一些错误编译：

1) 'iTwitterMembershipProvider' 未实现继承的抽象

会员 'System.Web.MembershiProvider.CreateUser(字符串, 字符串，字符串，字符串，字符串，布尔值， 对象，出 System.Web.Security.MembershipCreateStatus)'

2) iTwitterMembershipProvider.CreateUser(字符串,

字符串，字符串，字符串，字符串，布尔值， 对象，出 System.Web.Security.MembershipCreateStatus)': 找不到合适的方法来覆盖

3)'iTwitterMembershipProvider.GetUser(字符串,

bool)'：返回类型必须是 'System.Web.Security.MembershipUser' 匹配被覆盖的成员 'System.Web.Security.MembershipProvider.GetUser(字符串, 布尔）'

我被堵在这里了。

谢谢。

Answer 1

将CreateUser和GetUser的返回类型更改为基类MembershipUser。当您调用这些方法时，您可以将其转换为 iTwitterMembershipUser 类型。例如，在 CreateUser 中，您将 return 语句更改为

return (iTwitterMembershipUser) GetUser(login);

Answer 2

我已经很久没有看过MembershipProvider 的东西了，所有的接口我都不记得了。但您的错误在于您正在实现一个抽象基类，该基类具有您未实现的抽象方法。如果您实现一个接口，或者从具有抽象方法的类继承，那么您的类必须提供这些成员的实现。在您的情况下，您的返回类型与抽象方法的返回类型不匹配。