Electron 打包工具有很多，如Electron-build、 Electron Forge 等，这里使用Electron-build，而Electron-build使用了nsis组件来创建安装向导，默认情况nsis安装向导不能自定义安装向导界面，但是nsis提供了nsis脚本可以扩展安装向导。

0.效果图

1.配置nsis脚本

在新建nsis脚本文件resources/installer.nsh，并添加自定义内容：

!define MUI_LANGUAGE "Chinese"
Unicode true

!include nsDialogs.nsh
!include LogicLib.nsh

#OutFile nsDialogs.exe
#RequestExecutionLevel user
#ShowInstDetails show

Var Dialog
Var apiUrl
Var other1
Var other2
Var other3
Var other4
Var skipSet

Page custom pgPageCreate pgPageLeave

Function pgPageCreate

    nsDialogs::Create 1018
    Pop $Dialog

    ${If} $Dialog == error
        Abort
    ${EndIf}

    ${NSD_CreateGroupBox} 10% 10u 80% 100u "接入地址配置"
    Pop $0

        ${NSD_CreateLabel} 20% 26u 20% 10u "接入地址:"
        Pop $0

        ${NSD_CreateText} 40% 24u 40% 12u ""
        Pop $apiUrl

        ${NSD_CreateLabel} 20% 40u 20% 10u "其他配置1:"
        Pop $0

        ${NSD_CreateText} 40% 38u 40% 12u ""
        Pop $other1

        ${NSD_CreateLabel} 20% 54u 20% 10u "其他配置2:"
        Pop $0

        ${NSD_CreateText} 40% 52u 40% 12u ""
        Pop $other2
        
        ${NSD_CreateLabel} 20% 68u 20% 10u "其他配置3:"
        Pop $0

        ${NSD_CreateText} 40% 66u 40% 12u ""
        Pop $other3

        ${NSD_CreateLabel} 20% 82u 20% 10u "其他配置4:"
        Pop $0

        ${NSD_CreateText} 40% 80u 40% 12u ""
        Pop $other4

        ${NSD_CreateCheckbox} 20% 96u 100% 10u "跳过当前设置"
        Pop $skipSet

    nsDialogs::Show
FunctionEnd

Function PgPageLeave
    ${NSD_GetText} $apiUrl $0
    ${NSD_GetText} $other1 $1
    ${NSD_GetText} $other2 $2
    ${NSD_GetText} $other3 $3
    ${NSD_GetText} $other4 $4
    ${NSD_GetState} $skipSet $6
	;将配置信息写入文件: C：\用户\用户名\AppData\Roaming\demo\config.json
    ${If} $6 == 0
        SetOutPath "$APPDATA\demo"
        CreateDirectory "$APPDATA\demo"
        ;FileOpen $9 $APPDATA\demo\config.json w
        ;FileWrite $9 '{"apiUrl":"$0","other1":"$1","other2":"$2","other3":"$3","other4":"$4"}'
        ;FileClose $9
        ;SetFileAttributes $APPDATA\demo\config.json NORMAL

        StrCpy $0 '{"apiUrl":"$0","other1":"$1","other2":"$2","other3":"$3","other4":"$4"}'
        FileOpen $5 "$APPDATA\demo\config.json" "w"
        FileWrite $5 $0
        FileClose $5
    ${EndIf}

FunctionEnd

Section
SectionEnd

2.在package.json添加nsis脚本

在package.json的build中的nsis添加我们自定义nsis脚本的引用："include": "resources/installer.nsh"，完整配置如下：

"build": {
    "appId": "com.demo.electron",
    "productName": "Electron应用示例",
    "copyright": "Copyright © Electron应用示例",
    "mac": {
      "category": "public.app-category.utilities"
    },
    "win": {
      "icon": "./resources/icons/icon.ico",
      "target": [
        {
          "target": "nsis",
          "arch": [
            "ia32",
            "x64"
          ]
        }
      ],
      "artifactName": "${productName}_${version}-${arch}.${ext}"
    },
    "nsis": {
      "oneClick": false,
      "allowElevation": true,
      "allowToChangeInstallationDirectory": true,
      "installerIcon": "./resources/icons/icon.ico",
      "uninstallerIcon": "./resources/icons/icon.ico",
      "installerHeaderIcon": "./resources/icons/icon.ico",
      "createDesktopShortcut": true,
      "createStartMenuShortcut": true,
      "shortcutName": "Electron应用示例",
      "runAfterFinish": true,
      "include": "resources/installer.nsh"
    },
    "files": [
      "dist/**/*",
      "dist-electron/**/*"
    ],
    "directories": {
      "buildResources": "assets",
      "output": "dist-build"
    },
    "publish": [
      {
        "provider": "generic",
        "url": "http://192.168.1.2/release/"
      }
    ],
    "extraResources": [
      "./plugins/${platform}/${arch}/**"
    ]
  },

3.打包

执行打包命令：
npm run electron:build.exe

打包完双击安装包就有效果了。