记AbpSession扩展实现过程

 1  public class MyAbpSession : ClaimsAbpSession
 2     {
 3         public MyAbpSession(IMultiTenancyConfig multiTenancy) : base(multiTenancy)
 4         {
 5 
 6         }
 7 
 8         public virtual string UserName
 9         {
10             get
11             {
12                 var userIdClaim = PrincipalAccessor.Principal?.Claims.FirstOrDefault(c => c.Type == "UserName");
13                 return userIdClaim.Value;
14             }
15         }
16     }

1         public override void PreInitialize()
2          {
3              //Enable database based localization
4              Configuration.Modules.Zero().LanguageManagement.EnableDbLocalization();
5  
6              //替换IAbpSession的实现类
7              Configuration.ReplaceService<IAbpSession, MyAbpSession>(DependencyLifeStyle.Transient);
8             
9          }

 1   private async Task SignInAsync(User user, ClaimsIdentity identity = null, bool rememberMe = false)
 2         {
 3 
 4             if (identity == null)
 5             {
 6                 identity = await _userManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);
 7             }
 8             else
 9             {
10                 //UserName为查询用标识(key)
11                 identity.AddClaim(new Claim("UserName", user.Name));
12             }
13             AuthenticationManager.SignOut(DefaultAuthenticationTypes.ApplicationCookie);
14             AuthenticationManager.SignIn(new AuthenticationProperties {IsPersistent = rememberMe}, identity);
15         }

1     public static class MyAbpSessionExtensions
2     {
3         public static string GetUserName(this IAbpSession session)
4         {
5             //在ABP源码中也是通过DefaultPrincipalAccessor.Instance来获取PrincipalAccessor  即此处的DefaultPrincipalAccessor.Instance等价于上文中的PrincipalAccessor
6             var userIdClaim = DefaultPrincipalAccessor.Instance.Principal?.Claims.FirstOrDefault(c => c.Type == "UserName");
7             return userIdClaim.Value;
8         }
9     }

  　public interface IMyAbpSession:IAbpSession
    {

        string UserName{ get;}
    }

 public new IMyAbpSession AbpSession { get; set; }