DirectorySearcher 可以比 PrincipalSearcher 快得多.

DirectorySearcher can be significantly faster than PrincipalSearcher if you make use of PropertiesToLoad.

DirectorySearcher 和類似的類可以處理 AD 中的所有對象，而 PrincipalSearcher 的限制要大得多.例如，您不能使用 PrincipalSearcher 和類似的類來修改組織單位.

DirectorySearcher and like classes can work with all objects in AD, whereas PrincipalSearcher is much more limited. For example, you can not modify an Organizational Unit using PrincipalSearcher and like classes.

這是我使用 PrincipalSearcher、DirectorySearcher 而不使用 PropertiesToLoad 和 DirectorySearcher 來分析的圖表使用 PropertiesToLoad.所有測試...

Here is a chart I made to analyze using PrincipalSearcher, DirectorySearcher without using PropertiesToLoad, and DirectorySearcher with using PropertiesToLoad. All tests...

• 使用 1000
的 PageSize
• 一共查詢了4278個用戶對象
• 指定以下條件
  • objectClass=user
  • objectCategory=person
  • 不是調度資源(即 !msExchResourceMetaData=ResourceType:Room)
  • 已啟用(即 !userAccountControl:1.2.840.113556.1.4.803:=2)

  
  

  使用PrincipalSearcher

  [DirectoryRdnPrefix("CN")]
  [DirectoryObjectClass("Person")]
  public class UserPrincipalEx: UserPrincipal
  {
  
      private AdvancedFiltersEx _advancedFilters;
  
      public UserPrincipalEx( PrincipalContext context ): base(context)
      {
          this.ExtensionSet("objectCategory","User");
      }
  
      public new AdvancedFiltersEx AdvancedSearchFilter
      {
          get {
              if( null == _advancedFilters )
                  _advancedFilters = new AdvancedFiltersEx(this);
                  return _advancedFilters;
          }
      }
  
  }
  
  public class AdvancedFiltersEx: AdvancedFilters 
  {
  
      public AdvancedFiltersEx( Principal principal ): 
          base(principal) { }
  
      public void Person()
      {
          this.AdvancedFilterSet("objectCategory", "person", typeof(string), MatchType.Equals);
          this.AdvancedFilterSet("msExchResourceMetaData", "ResourceType:Room", typeof(string), MatchType.NotEquals);
      }
  }
  
  //...
  
  for( int i = 0; i < 10; i++ )
  {
      uint count = 0;
      Stopwatch timer = Stopwatch.StartNew();
      PrincipalContext context = new PrincipalContext(ContextType.Domain);
      UserPrincipalEx filter = new UserPrincipalEx(context);
      filter.Enabled = true;
      filter.AdvancedSearchFilter.Person();
      PrincipalSearcher search = new PrincipalSearcher(filter);
      DirectorySearcher ds = search.GetUnderlyingSearcher() as DirectorySearcher;
      if( ds != null )
          ds.PageSize = 1000;
      foreach( UserPrincipalEx result in search.FindAll() )
      {
          string canonicalName = result.CanonicalName;
          count++;
      }
  
      timer.Stop();
      Console.WriteLine("{0}, {1} ms", count, timer.ElapsedMilliseconds);
  }
  

  
  

  使用DirectorySearcher

  for( int i = 0; i < 10; i++ )
  {
      uint count = 0;
      string queryString = "(&(objectClass=user)(objectCategory=person)(!msExchResourceMetaData=ResourceType:Room)(!userAccountControl:1.2.840.113556.1.4.803:=2))";
  
      Stopwatch timer = Stopwatch.StartNew();
  
      DirectoryEntry entry = new DirectoryEntry();
      DirectorySearcher search = new DirectorySearcher(entry,queryString);
      search.PageSize = 1000;
      foreach( SearchResult result in search.FindAll() )
      {
          DirectoryEntry user = result.GetDirectoryEntry();
          if( user != null )
          {
              user.RefreshCache(new string[]{"canonicalName"});
              string canonicalName = user.Properties["canonicalName"].Value.ToString();
              count++;
          }
      }
      timer.Stop();
      Console.WriteLine("{0}, {1} ms", count, timer.ElapsedMilliseconds);
  }
  

  
  

  使用 DirectorySearcher 和 PropertiesToLoad

  Using DirectorySearcher with PropertiesToLoad

  與使用DirectorySearcher"相同，但添加這一行

  Same as "Using DirectorySearcher but add this line

  search.PropertiesToLoad.AddRange(new string[] { "canonicalName" });
  

  之后

  search.PageSize = 1000;
  

  這篇關于PrincipalSearcher 和 DirectorySearcher 的區別的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！

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