活动目录Active Directory是用于Windows Server的目录服务,它存储着网络上各种对象的有关信息,并使该信息易于管理员和用户查找及使用。Active Directory使用结构化的数据存储作为目录信息的逻辑层次结构的基础。
在某些情况下我们需要通过程序来读取Active Directory中的信息,我们可以使用微软提供的ADSI(Active Directory Services Interface)。ADSI是一组以COM接口形式提供的目录 服务,因此任何支持COM编程的语言如Delphi、VB、VC等都可以使用ADSI。
在Delphi中使用ADSI需要导入活动目录类型库,具体操作如下:在IDE中选择菜单“Project->Import Type Library”,在弹出的对话框中选择“Active Ds Type Libarary(version 1.0)”,单击“Create Unit”,Delphi会自动产生封装单元文件。只要在相应文件中引用该单元文件即可使用ADSI了。下面给出一个在Delphi6中使用ADSI访问Windows Server活动目录信息的示例代码。
unitUnit2;
interface
uses
Windows,Messages,SysUtils,Variants,Classes,Graphics,Controls,Forms,
Dialogs,ActiveDs_TLB,ActiveX,ComObj,ComCtrls,StdCtrls;
type
TForm2=class(TForm)
GroupBox1:TGroupBox;
lvGroup:TListView;
GroupBox2:TGroupBox;
lvUser:TListView;
Button1:TButton;
procedureButton1Click(Sender:TObject);
private
{Privatedeclarations}
functionGetObject(constName:String):IDispatch;
procedureEnumerateUsers(Container:IAdsContainer);
procedureAddGroupToListView(AGroup:IADsGroup);
procedureAddUserToListView(AUser:IAdsUser);
public
{Publicdeclarations}
end;
var
Form2:TForm2;
implementation
{$R*.dfm}
{TForm2}
procedureTForm2.AddGroupToListView(AGroup:IADsGroup);
begin
lvGroup.Items.Add.Caption:=AGroup.Name;
end;
procedureTForm2.AddUserToListView(AUser:IAdsUser);
begin
withlvUser.Items.Adddobegin
Caption:=AUser.FullName;
SubItems.Add(VarToStr(AUser.Get('sAMAccountName')));
end;
end;
procedureTForm2.EnumerateUsers(Container:IAdsContainer);
var
ADsObj:IADs;
Value:LongWord;
Enum:IEnumVariant;
ADsTempOjb:OleVariant;
begin
Enum:=(Container._NewEnum)asIEnumVariant;
while(Enum.Next(1,ADsTempOjb,Value)=S_OK)dobegin
ADsObj:=IUnknown(ADsTempOjb)asIADs;
try
ifSameText(ADsObj.Class_,'Group')thenbegin
AddGroupToListView(ADsObjasIADsGroup);
EnumerateUsers(ADsObjasIAdsContainer);
end
elseifSameText(ADsObj.Class_,'User')then
AddUserToListView(ADsObjasIADsUser);
except
end;
end;
end;
functionTForm2.GetObject(constName:String):IDispatch;
var
Eaten:Integer;
Moniker:IMoniker;
BindContext:IBindCtx;
begin
OleCheck(CreateBindCtx(0,BindContext));
OleCheck(MkParseDisplayName(BindContext,PWideChar(WideString(Name)),Eaten,Moniker));
OleCheck(Moniker.BindToObject(BindContext,Nil,IDispatch,Result));
end;
procedureTForm2.Button1Click(Sender:TObject);
var
Container:IADsContainer;
begin
Container:=GetObject('LDAP://OU=Suzhou,OU=root,DC=ap,DC=emersonclimate,DC=org')asIADsContainer;
lvGroup.Items.BeginUpdate;
lvUser.Items.BeginUpdate;
try
Button1.Enabled:=False;
EnumerateUsers(Container);
Button1.Enabled:=True;
finally
lvGroup.Items.EndUpdate;
lvUser.Items.EndUpdate;
end;
Container._Release;
end;
end.
interface
uses
Windows,Messages,SysUtils,Variants,Classes,Graphics,Controls,Forms,
Dialogs,ActiveDs_TLB,ActiveX,ComObj,ComCtrls,StdCtrls;
type
TForm2=class(TForm)
GroupBox1:TGroupBox;
lvGroup:TListView;
GroupBox2:TGroupBox;
lvUser:TListView;
Button1:TButton;
procedureButton1Click(Sender:TObject);
private
{Privatedeclarations}
functionGetObject(constName:String):IDispatch;
procedureEnumerateUsers(Container:IAdsContainer);
procedureAddGroupToListView(AGroup:IADsGroup);
procedureAddUserToListView(AUser:IAdsUser);
public
{Publicdeclarations}
end;
var
Form2:TForm2;
implementation
{$R*.dfm}
{TForm2}
procedureTForm2.AddGroupToListView(AGroup:IADsGroup);
begin
lvGroup.Items.Add.Caption:=AGroup.Name;
end;
procedureTForm2.AddUserToListView(AUser:IAdsUser);
begin
withlvUser.Items.Adddobegin
Caption:=AUser.FullName;
SubItems.Add(VarToStr(AUser.Get('sAMAccountName')));
end;
end;
procedureTForm2.EnumerateUsers(Container:IAdsContainer);
var
ADsObj:IADs;
Value:LongWord;
Enum:IEnumVariant;
ADsTempOjb:OleVariant;
begin
Enum:=(Container._NewEnum)asIEnumVariant;
while(Enum.Next(1,ADsTempOjb,Value)=S_OK)dobegin
ADsObj:=IUnknown(ADsTempOjb)asIADs;
try
ifSameText(ADsObj.Class_,'Group')thenbegin
AddGroupToListView(ADsObjasIADsGroup);
EnumerateUsers(ADsObjasIAdsContainer);
end
elseifSameText(ADsObj.Class_,'User')then
AddUserToListView(ADsObjasIADsUser);
except
end;
end;
end;
functionTForm2.GetObject(constName:String):IDispatch;
var
Eaten:Integer;
Moniker:IMoniker;
BindContext:IBindCtx;
begin
OleCheck(CreateBindCtx(0,BindContext));
OleCheck(MkParseDisplayName(BindContext,PWideChar(WideString(Name)),Eaten,Moniker));
OleCheck(Moniker.BindToObject(BindContext,Nil,IDispatch,Result));
end;
procedureTForm2.Button1Click(Sender:TObject);
var
Container:IADsContainer;
begin
Container:=GetObject('LDAP://OU=Suzhou,OU=root,DC=ap,DC=emersonclimate,DC=org')asIADsContainer;
lvGroup.Items.BeginUpdate;
lvUser.Items.BeginUpdate;
try
Button1.Enabled:=False;
EnumerateUsers(Container);
Button1.Enabled:=True;
finally
lvGroup.Items.EndUpdate;
lvUser.Items.EndUpdate;
end;
Container._Release;
end;
end.
http://cmao.iteye.com/blog/2246028