如何使用不同的方法获取Windows用户名? [英] How to get Windows user name using different methods?

问题描述

在.NET中，似乎有几种方法可以获取当前的Windows用户名.其中三个是:

In .NET, there appears to be several ways to get the current Windows user name. Three of which are:

string name = WindowsIdentity.GetCurrent().Name;

或

string name = Thread.CurrentPrincipal.Identity.Name;

或

string name = Environment.UserName;

有什么区别，为什么选择一种方法而不是另一种方法?还有其他方法吗?

What's the difference, and why choose one method over the other? Are there any other ways?

推荐答案

Environment.UserName调用advapi32.dll中的GetUserName.这意味着，如果您要冒充其他用户，则此属性将反映出来.

Environment.UserName calls GetUserName within advapi32.dll. This means that if you're impersonating another user, this property will reflect that.

Thread.CurrentPrincipal有一个setter，可以通过编程方式进行更改.(顺便说一下，这不是假冒.)

Thread.CurrentPrincipal has a setter and can be changed programmatically. (This is not impersonation btw.)

WindowsIdentity是您当前的 windows 身份(如果有).它不一定反映用户，认为带有FormsAuthentication的ASP.NET.然后WindowsIdentity将成为NT服务，而FormsIdentity将成为登录用户.还有一个PassportIdentity，您可以构建自己的东西来进一步使事情复杂化.

WindowsIdentity is your current windows identity, if any. It will not necessarily reflect the user, think ASP.NET with FormsAuthentication. Then the WindowsIdentity will be the NT-service, but the FormsIdentity will be the logged in user. There's also a PassportIdentity, and you can build your own stuff to complicate things further.

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