现在基于 js 和 web浏览器核心构建的 C/S 程序越来越多，比如微信桌面版（基于 duilib 和 cef）、VS CODE（基于electron）等，出于了解的目的，最近学习了 electron。electron具体是什么，可以做什么，这里不做过多的介绍，网上很多相关的介绍，这里主要介绍在VS2017下怎么进行 electron 应用程序的开发。
一、环境搭建
- 安装 node.js 及 npm。
- 安装 vs2017 ，必须安装 node.js web开发包。
二、创建空白 Node.js 控制台应用程序项目
创建好的项目结构入下：
三、编写 electron Hello Word
参照 https://github.com/electron/electron/blob/master/docs/tutorial/quick-start.md：
1、打开 package.json 加入：
"dependencies": {
"electron": "^1.6.6"
}
最后内容如下：
{
"name": "electron-hello-word",
"version": "0.0.0",
"description": "ElectronHelloWord",
"main": "app.js",
"author": {
"name": "Starts_2000"
},
"dependencies": {
"electron": "^1.6.6"
}
}
2、打开 app.js，输入以下内容：
'use strict';
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.
3、新建 index.html 文件
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Hello World!</title>
</head>
<body>
<h1>Hello World!</h1>
We are using node
<script>document.write(process.versions.node)</script>,
Chrome
<script>document.write(process.versions.chrome)</script>,
and Electron
<script>document.write(process.versions.electron)</script>.
</body>
</html>
四、设置和运行
1、NPM 安装 electron 包
安装成功后可看到，点击解决方案上方的显示所有文件，可以看到
2、设置项目 Node.exe路径为：
.\node_modules\electron\dist\electron.exe
运行解决方案，就可以看到electron 的 Hello Word示例了：