检索用户信息的快速方法 Active Directory

问题描述

如何从 Active Directory 查询用户信息?我有有效的代码，但它真的很慢.我正在使用 C#.这是我目前使用的代码:

How to query user information from Active Directory? I have code that works, but it's really slow. I'm using C#.This is the code I currently use:

    static void Main(string[] args)
    {
        SearchResultCollection sResults = null;

        try
        {
            //modify this line to include your domain name
            string path = "LDAP://EXTECH";
            //init a directory entry
            DirectoryEntry dEntry = new DirectoryEntry(path);

            //init a directory searcher
            DirectorySearcher dSearcher = new DirectorySearcher(dEntry);

            //This line applies a filter to the search specifying a username to search for
            //modify this line to specify a user name. if you want to search for all
            //users who start with k - set SearchString to "k"
            dSearcher.Filter = "(&(objectClass=user))";

            //perform search on active directory
            sResults = dSearcher.FindAll();

            //loop through results of search
            foreach (SearchResult searchResult in sResults)
            {
                if (searchResult.Properties["CN"][0].ToString() == "Adit")
                {
                    ////loop through the ad properties
                    //foreach (string propertyKey in
                    //searchResult.Properties["st"])
                    //{

                        //pull the collection of objects with this key name
                        ResultPropertyValueCollection valueCollection =
                        searchResult.Properties["manager"];

                        foreach (Object propertyValue in valueCollection)
                        {

                            //loop through the values that have a specific name
                            //an example of a property that would have multiple
                            //collections for the same name would be memberof
                            //Console.WriteLine("Property Name: " + valueCollection..ToString());
                            Console.WriteLine("Property Value: " + (string)propertyValue.ToString());

                            //["sAMAccountName"][0].ToString();
                        }
                    //}
                    Console.WriteLine(" ");
                }
            }
        }
        catch (InvalidOperationException iOe)
        {
            //
        }
        catch (NotSupportedException nSe)
        {
            //
        }
        finally
        {

            // dispose of objects used
            if (sResults != null)
                sResults.Dispose();

        }
        Console.ReadLine();
    }

从 AD 获取用户信息的更快代码是什么样的?

What would faster code look like to get user information from AD?

推荐答案

你的代码慢的原因是你的 LDAP 查询会检索您域中的每个用户对象，即使您只对一个通用名称为Adit"的用户感兴趣:

The reason why your code is slow is that your LDAP query retrieves every single user object in your domain even though you're only interested in one user with a common name of "Adit":

dSearcher.Filter = "(&(objectClass=user))";

因此要优化，您需要将 LDAP 查询范围缩小到您感兴趣的用户.尝试以下操作:

So to optimize, you need to narrow your LDAP query to just the user you are interested in. Try something like:

dSearcher.Filter = "(&(objectClass=user)(cn=Adit))";

此外，不要忘记在完成后处理这些对象:

In addition, don't forget to dispose these objects when done:

• DirectoryEntry dEntry
• DirectorySearcher dSearcher

这篇关于检索用户信息的快速方法 Active Directory的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！