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Windows Server 2008 R2 64 位 IIS 7.5 Delphi XE2

我使用 delphi XE2 制作了一个简单的 WebService/ISAPI DLL。这个 Web 服务有一个函数,它返回两个数字之和,并制作了一个简单的客户端应用程序来测试这个函数。当我将它(与客户端一起)编译为 32 位应用程序(在具有 32 位启用的应用程序池的虚拟目录中)时,一切正常

当我将它编译为 64 位 DLL(客户端也被编译为 64 位应用程序)时,我总是收到访问冲突错误“类 ERemotableException 并带有消息‘在模块‘MyWebService.dll’中的地址 0000000002199F33 的访问冲突’。阅读地址 0000000000000000'。”

我检查了我应该做的所有 IIS7.5 权限(32 位 ISAPI DLL 工作正常)并且问题一直出现。

这是一些快速的测试反馈:

如果我使用 TRemotable 类后代在过程中传递数据 --> 没有 pb

但是,编写一个返回整数的简单函数会导致访问冲突。我还尝试使用本机 wndows 数据类型,例如 Int64,但没有运气。

以前有人遇到过这样的问题吗?因为坦率地说我很绝望。

这是代码:

这是webmodule接口

{ Invokable interface IMyDebugModule }

unit MyDebugModuleIntf;

interface

uses Soap.InvokeRegistry, System.Types, Soap.XSBuiltIns;

type

  { Invokable interfaces must derive from IInvokable }
  IMyDebugModule = interface(IInvokable)
  ['{02A5AD69-24E4-447B-8882-804DA687A0F2}']

    { Methods of Invokable interface must not use the default }
    { calling convention; stdcall is recommended }
    //function MyFunc():double;stdcall;
    function MyFunc():Int64;stdcall;
  end;

implementation

initialization
  { Invokable interfaces must be registered }
  InvRegistry.RegisterInterface(TypeInfo(IMyDebugModule));

end.

和实施

{ Invokable implementation File for TMyDebugModule which implements IMyDebugModule }

unit MyDebugModuleImpl;

interface

uses Soap.InvokeRegistry, System.Types, Soap.XSBuiltIns, MyDebugModuleIntf;

type

  { TMyDebugModule }
  TMyDebugModule = class(TInvokableClass, IMyDebugModule)
  public
    function MyFunc():Int64;stdcall;
  end;

implementation




{ TMyDebugModule }

function TMyDebugModule.MyFunc: Int64;
begin
  Result := 101;
end;

{ TMyDebugModule }


initialization
{ Invokable classes must be registered }
   InvRegistry.RegisterInvokableClass(TMyDebugModule);
end.

这是客户端应用程序 WSDl pascal 文件:

// ************************************************************************ //
// The types declared in this file were generated from data read from the
// WSDL File described below:
// WSDL     : C:\MyWorkingDir64\MyTests\WebServiceDebug\Client\IMyDebugModuleWSDL.xml
// Version  : 1.0
// (19/04/2013 09:46:52 - - $Rev: 37707 $)
// ************************************************************************ //

unit IMyDebugModuleWSDL;

interface

uses InvokeRegistry, SOAPHTTPClient, Types, XSBuiltIns;

type

  // ************************************************************************ //
  // The following types, referred to in the WSDL document are not being represented
  // in this file. They are either aliases[@] of other types represented or were referred
  // to but never[!] declared in the document. The types from the latter category
  // typically map to predefined/known XML or Embarcadero types; however, they could also 
  // indicate incorrect WSDL documents that failed to declare or import a schema type.
  // ************************************************************************ //
  // !:long            - "http://www.w3.org/2001/XMLSchema"[]


  // ************************************************************************ //
  // Namespace : urn:MyDebugModuleIntf-IMyDebugModule
  // soapAction: urn:MyDebugModuleIntf-IMyDebugModule#MyFunc
  // transport : http://schemas.xmlsoap.org/soap/http
  // style     : rpc
  // use       : encoded
  // binding   : IMyDebugModulebinding
  // service   : IMyDebugModuleservice
  // port      : IMyDebugModulePort
  // URL       : http://devserver2008/BahaaDebug/BahaaDebug.dll/soap/IMyDebugModule
  // ************************************************************************ //
  IMyDebugModule = interface(IInvokable)
  ['{64033E30-8D6E-F252-4E38-55502BF4E1A5}']
    function  MyFunc: Int64; stdcall;
  end;

function GetIMyDebugModule(UseWSDL: Boolean=System.False; Addr: string=''; HTTPRIO: THTTPRIO = nil): IMyDebugModule;


implementation
  uses SysUtils;

function GetIMyDebugModule(UseWSDL: Boolean; Addr: string; HTTPRIO: THTTPRIO): IMyDebugModule;
const
  defWSDL = 'C:\MyWorkingDir64\MyTests\WebServiceDebug\Client\IMyDebugModuleWSDL.xml';
  defURL  = 'http://devserver2008/BahaaDebug/BahaaDebug.dll/soap/IMyDebugModule';
  defSvc  = 'IMyDebugModuleservice';
  defPrt  = 'IMyDebugModulePort';
var
  RIO: THTTPRIO;
begin
  Result := nil;
  if (Addr = '') then
  begin
    if UseWSDL then
      Addr := defWSDL
    else
      Addr := defURL;
  end;
  if HTTPRIO = nil then
    RIO := THTTPRIO.Create(nil)
  else
    RIO := HTTPRIO;
  try
    Result := (RIO as IMyDebugModule);
    if UseWSDL then
    begin
      RIO.WSDLLocation := Addr;
      RIO.Service := defSvc;
      RIO.Port := defPrt;
    end else
      RIO.URL := Addr;
  finally
    if (Result = nil) and (HTTPRIO = nil) then
      RIO.Free;
  end;
end;


initialization
  { IMyDebugModule }
  InvRegistry.RegisterInterface(TypeInfo(IMyDebugModule), 'urn:MyDebugModuleIntf-IMyDebugModule', '');
  InvRegistry.RegisterDefaultSOAPAction(TypeInfo(IMyDebugModule), 'urn:MyDebugModuleIntf-IMyDebugModule#MyFunc');

end.

以及调用该函数的测试单元

unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, IMyDebugModuleWSDL, Vcl.StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  w:IMyDebugModule;
  i:integer;
begin
  w := GetIMyDebugModule(True,'',nil);
  i := w.MyFunc;
  caption := IntToStr(i);
end;

end.
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