Electron打包H5网页为桌面运行程序

zhujuyu

2019-06-28

关注关注

一、安装配置环境

Electron（一种桌面应用程序运行时），Electron 把 Chromium 和 Node 合并到一个单独的运行时里面，很适合开发桌面 web 形式的应用程序，通过Node它提供了通常浏览器所不能提供的能力。
首先需要在电脑进行安装配置Node环境，下载Nodejs，安装的过程像安装QQ一样简单

通过npm全局安装electron
```
npm install electron -g
```
这样你就可以在电脑的任意位置进行你想要的操作了
进入你要打包的H5网页的根目录

二、操作项目

进入项目目录需要先在根目录进行创建两个文件，分别为package.json、main.js，这两个文件与你项目的index.html在同一个文件内

package.json内的文件内容

{
  "name": "app-name",
  "version": "0.1.0",
  "main": "main.js"
}

main.js内的内容

const { app, BrowserWindow } = require('electron')
const path = require('path')
const url = require('url')

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let win

function createWindow() {
    // Create the browser window.
    win = new BrowserWindow({ width: 800, height: 600 })

    // and load the index.html of the app.
    win.loadURL(
        url.format({
            pathname: path.join(__dirname, 'index.html'),
            protocol: 'file:',
            slashes: true,
        }),
    )

    // Open the DevTools.
    // win.webContents.openDevTools()

    // Emitted when the window is closed.
    win.on('closed', () => {
        // Dereference the window object, usually you would store windows
        // in an array if your app supports multi windows, this is the time
        // when you should delete the corresponding element.
        win = null
    })
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)

// Quit when all windows are closed.
app.on('window-all-closed', () => {
    // On macOS it is common for applications and their menu bar
    // to stay active until the user quits explicitly with Cmd + Q
    if (process.platform !== 'darwin') {
        app.quit()
    }
})

app.on('activate', () => {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (win === null) {
        createWindow()
    }
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.

下载需要的打包插件工具 electron-packag
```
npm install electron-package -g
```
最后一步进行打包操作，这块比较代码比较长
electron-package . (生成exe文件的名字) --win --out (打包完文件夹的名字) -arch=×64 --electronVersion (electron的版本号) --overwrite --ignore=node_modules即可完成打包
例如：我的项目需要进行打包的操作为：
```
electron-packager . miaotong --win --out presenterTool --arch=x64 --electronVersion 3.0.4 --overwrite --ignore=node_modules
```
注意：--electronVersion的版本号必须和你第一步安装的electron版本一致，如果不确定版本可以输入命令进行查看
cmd----->electron -v 终端会输出你当前全局安装electron的版本号，当然这个操作也是你验证electron有没有安装成功的方法
至此就看自己的操作和运气了，上面的长串指令执行完成之后，在你的项目下会生成一个presenterTool文件夹，一级一级点击进去，会看到一个exe文件，点击试试吧