Angular + Electron + Sock.io 实战

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github项目地址

需要提前了解的知识

• Angular官网
• Angular CLI
• Electron
• socket.io

使用Angular CLI创建项目

首先全局安装Angular CLI

npm install -g @angular/cli

创建项目

ng new my-app

一个完整的Angular项目就大功告成了

集成Electron

首先本地安装Electron

npm install electron --save-dev

在根目录下的package.json中声明项目入口文件

"main": "main.js",

然后scripts对象添加新的脚本

"preelectron": "npm run build",
"electron": "electron .",

preelectron表示预执行脚本，表示npm在每次执行electron前会自动先执行改脚本。

下面在项目的根目录下添加electron入口文件main.js

const electron = require('electron')
// Module to control application life.
const app = electron.app
// Module to create native browser window.
const BrowserWindow = electron.BrowserWindow

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 mainWindow

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

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

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

  // Emitted when the window is closed.
  mainWindow.on('closed', function () {
    // 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.
    mainWindow = 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', function () {
  // On OS X 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', function () {
  // On OS X 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 (mainWindow === 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.

注意我们把index.html的载入路径改为了dist/index.html, 因为使用Angular CLI生成的项目会自动集成webpack，在项目运行在开发模式下时会自动启动webpack， 此时eletron无法访问index.html，所以只有在生产模式下生成打包压缩后的文件才能直接被electron访问到。