问题描述
我通过传递电子邮件 ID 从 Active Directory 中查找用户名.它工作正常.但是获取用户名需要30-40秒.还有其他更好的方法可以通过电子邮件地址从 Active Directory 中查找用户名吗?
I am finding user name from Active Directory by passing email id. It is working fine. But it takes 30-40 seconds to get the username. Is there any other better way to find the username from Active Directory by email address?
请参考我的代码:
using (PrincipalContext context = new PrincipalContext(ContextType.Domain, "domainname")) { UserPrincipal userPrincipal = new UserPrincipal(context); PrincipalSearcher principalSearch = new PrincipalSearcher(userPrincipal); foreach (UserPrincipal result in principalSearch.FindAll()) { if (result != null && result.EmailAddress != null && result.EmailAddress.Equals(user.Email, StringComparison.OrdinalIgnoreCase)) { user.FirstName = result.GivenName; user.LastName = result.Surname; } } }
推荐答案
您无需枚举所有用户即可找到一个用户!试试这个代码:
You don't need to enumerate all users to to find one of them! Try this code:
using (PrincipalContext context = new PrincipalContext(ContextType.Domain, "domainname")) { UserPrincipal yourUser = UserPrincipal.FindByIdentity(context, EmailAddress); if (yourUser != null) { user.FirstName = yourUser.GivenName; user.LastName = yourUser.Surname; } }
如果这不起作用,或者如果您需要一次搜索多个条件,请将 PrincipalSearcher 与 QBE(按示例查询)方法一起使用 - 搜索强>您需要的一个用户 - 不要在所有用户之间循环!
If that shouldn't work, or if you need to search for several criteria at once, used the PrincipalSearcher with the QBE (query-by-example) approach - search the one user you need - don't cycle through all users!
// create your domain context using (PrincipalContext context = new PrincipalContext(ContextType.Domain, "domainname")) { // define a "query-by-example" principal - UserPrincipal qbeUser = new UserPrincipal(ctx); qbeUser.EmailAddress = yourEmailAddress; // create your principal searcher passing in the QBE principal PrincipalSearcher srch = new PrincipalSearcher(qbeUser); // find all matches foreach(var found in srch.FindAll()) { // do whatever here - "found" is of type "Principal" - it could be user, group, computer..... } }