用用户在 Inno Setup 中输入的输入替换已安装文本文件中的占位符

Question

作为 Inno Setup 内置安装程序的一部分，我想将用户在安装程序中输入的文本字段输出到文本文件。

到目前为止我有以下内容：

[Code]
var
  PrimaryServerPage: TInputQueryWizardPage;
  PrimaryAddress: String;

procedure InitializeWizard;
begin
  PrimaryServerPage := CreateInputQueryPage(wpWelcome,
    'Primary Server Details', 'Where is you application installed?',
    'Please specify the IP address or hostname of your Primary Server, ' +
    'then click Next.');
  PrimaryServerPage.Add('Primary Server IP/Hostname:', false); 

  PrimaryAddress := PrimaryServerPage.Values[0];

  SaveStringToFile('c:\filename.txt', PrimaryAddress, True);
end;

但是，当我 运行 安装程序并输入字段时，它不会输出到文本文件。

如果我用数字替换 PrimaryServerPage.Values[0]，这会成功输出到文本文件。

任何人都可以就我可能出错的地方提供帮助或建议吗？

另外，接下来我其实想把这个值输出到现有文本文件的中间，这可能吗？ 例如，这是我希望将其插入的配置文件。要添加到 ENTER VALUE HERE! 中的值 可以将其添加为安装的最后一步吗？配置文件在安装完成后才会存在？

###############################################################################
#
#    Configuration File.
#
###############################################################################

#
# This file is intended for advanced users. Please consult the documentation
# before modifying this file.
#
# NOTE: The hash (#) represents a comment.
#

#
# Define the name or IP address of the primary server.
# On secondary server installs, this value should be changed to point to the
# primary server.
#   Default: 127.0.0.1
#   Examples:  mainserver.localdomain.com, win2003, 1.2.3.4
#
# IMPORTANT: Please restart the Service" after
# changing this value.
#
ApplicationServer=ENTER VALUE HERE!

工作正在进行中，在我查看替换之前卡住让文本文件输出工作（我想我可能误解了 post），尽管任何关于它的指导都会很棒，因为我我确信我对 Inno 的缺乏经验也会让我陷入困境。

[Code]
var
  PrimaryServerPage: TInputQueryWizardPage;
  PrimaryAddress: String;

   
function NextButtonClick(CurPageID: Integer): Boolean;
begin
  if(CurPageID = wpWelcome) then
  begin

  PrimaryServerPage := CreateInputQueryPage(wpWelcome,
    'Application Server Details', 'Where is your app installed?',
    'Please specify the IP address or hostname of your Application Server, ' +
    'then click Next.');
  PrimaryServerPage.Add('Primary Server IP/Hostname:', false); 

  PrimaryAddress := PrimaryServerPage.Values[0];

  SaveStringToFile('c:\filename.txt', PrimaryAddress, True);
  end;
 
  Result :=True;
end;

Answer 1

结合这两个问题的答案：

• Replace a text in a file with Inno Setup（FileReplaceString 函数）
• Inno Setup Compiler: How to modify file content (use of CurStepChanged(ssPostInstall) event function)

您将获得如下代码：

var
  PrimaryServerPage: TInputQueryWizardPage;

function FileReplaceString(ReplaceString: string):boolean;
var
  MyFile : TStrings;
  MyText : string;
begin
  Log('Replacing in file');
  MyFile := TStringList.Create;

  try
    Result := true;

    try
      MyFile.LoadFromFile(ExpandConstant('{app}' + '\thefile.txt'));
      Log('File loaded');
      MyText := MyFile.Text;

      { Only save if text has been changed. }
      if StringChangeEx(MyText, 'REPLACE_WITH_IP', ReplaceString, True) > 0 then
      begin;
        Log('IP address inserted');
        MyFile.Text := MyText;
        MyFile.SaveToFile(ExpandConstant('{app}' + '\thefile.txt'));
        Log('File saved');
      end;
    except
      Result := false;
    end;
  finally
    MyFile.Free;
  end;
  
  Result := True;
end;

procedure InitializeWizard;
begin
  PrimaryServerPage :=
    CreateInputQueryPage(
      wpWelcome, 'PaperCut Application Server Details', 'Where is PaperCut installed?',
      'Please specify the IP address or hostname of your ' +
        'Primary PaperCut Application Server, then click Next.');
  PrimaryServerPage.Add('Primary Application Server IP/Hostname:', False);
end;   

procedure CurStepChanged(CurStep: TSetupStep);
begin
  if CurStep = ssPostInstall then
  begin
    Log('File installed, replacing IP address');
    FileReplaceString(PrimaryServerPage.Values[0]);
  end;
end;

---

要在安装过程的早期进行替换，另请参阅：

• Inno Setup: How to run a code procedure in Run section or before Run section?
• How to execute cmd commands in Inno Setup