客户的系统是C/S和B/S的结合，B/S部分原来计划用IntraWeb,
刚好Delphi.net出现，所以B/S部分改用Delphi.net;
在开发过程中出现了一个问题：加密算法是Delphi 7开发的，
时间太紧不可能用Delphi.net重写加密算法，于是想到COM/COM+,
只可惜Delphi.net资料很少，与COM/COM+互操作的资料就更少了。
于是自己摸索，便有下文(源码附后)：
1，在Delphi 7中建立COM/COM+
(1)在IDE中File -> New -> Other -> ActiveX -> ActiveX Library,
将工程文件保存为ComProject;
(2)在IDE中File -> New -> Other -> ActiveX -> COM Object,
在Class Name栏填上Test,该单元保存为Test;
(3)在IDE中View -> Type Library给ITest加一个名为GetMsg的过程;
(4)Ctrl + F9;
(5)在IDE中Run -> Register ActiveX Server; // 注册COM/COM+也可用命令行
2, 在Delphi.net中调用COM/COM+
(1)在IDE中File -> New -> ASP.NET Web Application,
可能会遇到很多麻烦要你自己搞定哦！
(2)添加COM/COM+的引用:
在IDE中Project ->Add Reference -> COM Imports,
选中刚才注册的ComProject,点击Add Reference 添加引用，
单击OK(要注意你的项目文件(ASP.NET Web Application)
的路径(Path)不能使用中文哦);
(3)在WebForm1得uses中添加ComProject;
(4)调用COM/COM+
在WebForm1上方上两个Web Control：一个Button，一个Label;
双击Button，在过程中写上:
var
Msg: string;
Obj: TObject;
begin
Obj := Server.CreateObject('ComProject.Test'); // 建立COM/COM+
Test(Obj).GetMsg(Msg); // 将Obj转换为Test，调用GetMsg方法;
Label1.Text := Msg;
end;
(5)在WebForm1.aspx的Page行中加上Aspcompat="true",
如:<%@ Page language="c#" Debug="true" Codebehind="WebForm1.pas" AutoEventWireup="false" Inherits="WebForm1.TWebForm1" Aspcompat="true"%>
(6)Ctrl + F9,Run ->Run(或者Run Without Debugging);
(7)在网页中点击Button，是不是搞定了！
// 以下为源码部分:
COM/COM+工程文件(ComProject.dpr):
library ComProject;
uses
ComServ,
ComProject_TLB in 'ComProject_TLB.pas',
Test in 'Test.pas' {Test: CoClass};
exports
DllGetClassObject,
DllCanUnloadNow,
DllRegisterServer,
DllUnregisterServer;
{$R *.TLB}
{$R *.RES}
begin
end.
//COM/COM+的Test单元(Test.pas):
unit Test;
{$WARN SYMBOL_PLATFORM OFF}
interface
uses
Windows, ActiveX, Classes, ComObj, ComProject_TLB, StdVcl;
type
TTest = class(TTypedComObject, ITest)
protected
function GetMsg(out Msg: WideString): HResult; stdcall;
{Declare ITest methods here}
end;
implementation
uses ComServ;
function TTest.GetMsg(out Msg: WideString): HResult;
begin
Msg := 'Com/Com+测试成功!';
end;
initialization
TTypedComObjectFactory.Create(ComServer, TTest, Class_Test,
ciMultiInstance, tmApartment);
end.
//COM/COM+的类型库t单元(ComProject_TLB.pas):
unit ComProject_TLB;
// ************************************************************************ //
// WARNING
// -------
// The types declared in this file were generated from data read from a
// Type Library. If this type library is explicitly or indirectly (via
// another type library referring to this type library) re-imported, or the
// 'Refresh' command of the Type Library Editor activated while editing the
// Type Library, the contents of this file will be regenerated and all
// manual modifications will be lost.
// ************************************************************************ //
// PASTLWTR : 1.2
// File generated on 2004-2-6 13:28:46 from Type Library described below.
// ************************************************************************ //
// Type Lib: D:\Program Files\Borland\Delphi7\Projects\comtest2\ComProject.tlb (1)
// LIBID: {92B46A1D-8A31-46C5-98FE-C03FEA98DC21}
// LCID: 0
// Helpfile:
// HelpString: ComProject Library
// DepndLst:
// (1) v2.0 stdole, (D:\WINDOWS\system32\stdole2.tlb)
// ************************************************************************ //
{$TYPEDADDRESS OFF} // Unit must be compiled without type-checked pointers.
{$WARN SYMBOL_PLATFORM OFF}
{$WRITEABLECONST ON}
{$VARPROPSETTER ON}
interface
uses Windows, ActiveX, Classes, Graphics, StdVCL, Variants;
// *********************************************************************//
// GUIDS declared in the TypeLibrary. Following prefixes are used:
// Type Libraries : LIBID_xxxx
// CoClasses : CLASS_xxxx
// DISPInterfaces : DIID_xxxx
// Non-DISP interfaces: IID_xxxx
// *********************************************************************//
const
// TypeLibrary Major and minor versions
ComProjectMajorVersion = 1;
ComProjectMinorVersion = 0;
LIBID_ComProject: TGUID = '{92B46A1D-8A31-46C5-98FE-C03FEA98DC21}';
IID_ITest: TGUID = '{96CECA70-1438-4C54-982E-67C378F085E8}';
CLASS_Test: TGUID = '{CA54722F-C5EF-4814-A8DB-C1C357832F08}';
type
// *********************************************************************//
// Forward declaration of types defined in TypeLibrary
// *********************************************************************//
ITest = interface;
// *********************************************************************//
// Declaration of CoClasses defined in Type Library
// (NOTE: Here we map each CoClass to its Default Interface)
// *********************************************************************//
Test = ITest;
// *********************************************************************//
// Interface: ITest
// Flags: (256) OleAutomation
// GUID: {96CECA70-1438-4C54-982E-67C378F085E8}
// *********************************************************************//
ITest = interface(IUnknown)
['{96CECA70-1438-4C54-982E-67C378F085E8}']
function GetMsg(out Msg: WideString): HResult; stdcall;
end;
// *********************************************************************//
// The Class CoTest provides a Create and CreateRemote method to
// create instances of the default interface ITest exposed by
// the CoClass Test. The functions are intended to be used by
// clients wishing to automate the CoClass objects exposed by the
// server of this typelibrary.
// *********************************************************************//
CoTest = class
class function Create: ITest;
class function CreateRemote(const MachineName: string): ITest;
end;
implementation
uses ComObj;
class function CoTest.Create: ITest;
begin
Result := CreateComObject(CLASS_Test) as ITest;
end;
class function CoTest.CreateRemote(const MachineName: string): ITest;
begin
Result := CreateRemoteComObject(MachineName, CLASS_Test) as ITest;
end;
end.
/////////////////////////////////////以下为Delphi.net调用COM/COM+源码////////////////////////////
//WebForm1.pas单元:
unit WebForm1;
interface
uses
System.Collections, System.ComponentModel,
System.Data, System.Drawing, System.Web, System.Web.SessionState,
System.Web.UI, System.Web.UI.WebControls, System.Web.UI.HtmlControls,
ComProject;
type
TWebForm1 = class(System.Web.UI.Page)
{$REGION 'Designer Managed Code'}
strict private
procedure InitializeComponent;
procedure Button1_Click(sender: System.Object; e: System.EventArgs);
{$ENDREGION}
strict private
procedure Page_Load(sender: System.Object; e: System.EventArgs);
strict protected
Button1: System.Web.UI.WebControls.Button;
Label1: System.Web.UI.WebControls.Label;
procedure OnInit(e: EventArgs); override;
private
{ Private Declarations }
public
{ Public Declarations }
end;
implementation
{$REGION 'Designer Managed Code'}
/// <summary>
/// Required method for Designer support -- do not modify
/// the contents of this method with the code editor.
/// </summary>
procedure TWebForm1.InitializeComponent;
begin
Include(Self.Button1.Click, Self.Button1_Click);
Include(Self.Load, Self.Page_Load);
end;
{$ENDREGION}
procedure TWebForm1.Page_Load(sender: System.Object; e: System.EventArgs);
begin
// TODO: Put user code to initialize the page here
end;
procedure TWebForm1.OnInit(e: EventArgs);
begin
//
// Required for Designer support
//
InitializeComponent;
inherited OnInit(e);
end;
procedure TWebForm1.Button1_Click(sender: System.Object; e: System.EventArgs);
var
Msg: string;
Obj: TObject;
begin
Obj := Server.CreateObject('ComProject.Test');
Test(Obj).GetMsg(Msg);
Label1.Text := Msg;
end;
end.
///WebForm1.aspx单元:
<%@ Page language="c#" Debug="true" Codebehind="WebForm1.pas" AutoEventWireup="false" Inherits="WebForm1.TWebForm1" Aspcompat="true"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title></title>
<meta name="GENERATOR" content="Borland Package Library 7.1">
</head>
<body ms_positioning="GridLayout">
<form runat="server">
<asp:button id=Button1
style="Z-INDEX: 1; LEFT: 238px; POSITION: absolute; TOP: 158px"
runat="server" text="Button">
</asp:button>
<asp:label id=Label1
style="Z-INDEX: 2; LEFT: 190px; POSITION: absolute; TOP: 54px"
runat="server">Label</asp:label>
</form>
</body>
</html>
