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  • SimpleMembership

    最近2个月以来,一直在学习MVC,从最开始的2,一直到最新的4.从原来的aspx到现在的Razor引擎,越学越开心,越学越上瘾。

    最近为新项目做准备,打算用MVC4,VS2012+SQL2012,反正啥新用啥。

    新技术虽然方便,但也会遇到以往没有的问题,这不SimpleMembership在这里就出现了。

    以下为学习SimpleMembership中遇到的一些问题及解决办法。

    以前在webform中一直用Membership,MVC2,3中也一样使用,没啥差别,可这次不同了,Mvc4中突现SimpleMembership,初遇,百度一翻,觉得挺爽,功能基本和原来差不多,可以自动帮我建表。

    但问题也来了,我不单要管理用户,还要管理角色。可角色管理网上却没查到相关资料。

    直到今天和湿哥一起研究,又百度,又查查查,终于被我查到一篇英文文档,如下:

    First, the new project template creates an MVC 4 Internet application without any provider configuration, but for the membership features to work properly during a migration, it appears you need at least some configuration. The following code makes sure the SimpleMembershipProvider and SimpleRolesProvider are in place.

    <roleManager enabled="true" defaultProvider="simple">
    
    <providers>
    <clear/>
    <add name="simple" type="WebMatrix.WebData.SimpleRoleProvider,
    WebMatrix.WebData"
    />
    </providers>
    </roleManager>
    <membership defaultProvider="simple">
    <providers>
    <clear/>
    <add name="simple" type="WebMatrix.WebData.SimpleMembershipProvider,
    WebMatrix.WebData"
    />
    </providers>
    </membership>

    Then inside the Seed method of the DbMigrationsConfiguration<T> derived class, you can have:

    protected override void Seed(MovieDb context)
    {           
        //context.Movies.AddOrUpdate(...);

        // ...

        SeedMembership();
    }

    private void SeedMembership()
    {           
        WebSecurity.InitializeDatabaseConnection("DefaultConnection",
            "UserProfile", "UserId", "UserName", autoCreateTables: true);

        var roles = (SimpleRoleProvider) Roles.Provider;
        var membership = (SimpleMembershipProvider) Membership.Provider;

        if (!roles.RoleExists("Admin"))
        {
            roles.CreateRole("Admin");
        }
        if (membership.GetUser("sallen",false) == null)
        {
            membership.CreateUserAndAccount("sallen", "imalittleteapot");
        }
        if (!roles.GetRolesForUser("sallen").Contains("Admin"))
        {
            roles.AddUsersToRoles(new[] {"sallen"}, new[] {"admin"});
        }

    配置照做,看到SeedMembership与项目中的InitializeSimpleMembershipAttribute中的SimpleMembershipInitializer比较相像,就结合了一下

    private class SimpleMembershipInitializer
            {
                public SimpleMembershipInitializer()
                {
                    Database.SetInitializer<UsersContext>(null);
    
                    try
                    {
                        using (var context = new UsersContext())
                        {
                            if (!context.Database.Exists())
                            {
                                // Create the SimpleMembership database without Entity Framework migration schema
                                ((IObjectContextAdapter)context).ObjectContext.CreateDatabase();
                            }
                        }
    
                        WebSecurity.InitializeDatabaseConnection("DefaultConnection", "UserProfile", "UserId", "UserName", autoCreateTables: true);
                        
                        //-----------------
                        var roles = (SimpleRoleProvider) Roles.Provider;
    
                        if (!roles.RoleExists("Admin"))
                        {
                            roles.CreateRole("Admin");
                        }
                        //-----------------
                    }
                    catch (Exception ex)
                    {
                        throw new InvalidOperationException("The ASP.NET Simple Membership database could not be initialized. For more information, please see http://go.microsoft.com/fwlink/?LinkId=256588", ex);
                    }
                }
            }

    结果成功创建Admin Role。

    湿哥说,可以不用配置,直接使用,试验之,成功。

    结果表明,使用SimpleMembership确实非常方法,好多都集成了,不用再像以前那样运行向导再生成了。

    但可惜的是,SimpleMembership的扩展只支持UserId为int类型,有点不爽,我想使用GUID,有点局限了。

    上张图,来帮助理解实现过程(2013-11-28):

    SimpleMembership续

     

    一些学习资料:

    Asp.net Mvc4默认权限详细(上)

    Asp.net Mvc4默认权限详细(下)

    http://www.codeproject.com/Articles/637428/SimpleMembershipProvider-vs-MembershipProvider

    http://www.mono-software.com/blog/post/Mono/226/Adding-ASP-NET-SimpleMembership-to-an-existing-MVC-4-application/

    http://www.codeguru.com/csharp/.net/net_asp/mvc/using-simplemembership-in-asp.net-mvc-4.htm

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  • 原文地址:https://www.cnblogs.com/avictor/p/3267816.html
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