主进程中读取电脑mac地址，主机名，electron vue

async function createWindow() {
  // 注入小段css文件
  // mainWindow.webContents.insertCSS(" body,html { -webkit-app-region: drag !important;}")
  // body,html { -webkit-app-region: drag; } 
  // path获取本机mac地址
  var path = require('path')
  // Create the browser window.
  // Menu.setApplicationMenu(null) // null值取消顶部菜单栏
  const win = new BrowserWindow({
    width: 1920,
    height: 1080,
    // 隐藏导航栏
    // autoHideMenuBar: true,
    // 全屏显示
    // fullscreenable: true,
    // fullscreen: true,
    // simpleFullscreen: true,
    // 无边框窗口
    // frame:false,
    // transparent: true,
    webPreferences: {
      webSecurity:false,
      nodeIntegration: process.env.ELECTRON_NODE_INTEGRATION,
      contextIsolation: !process.env.ELECTRON_NODE_INTEGRATION,

      nodeIntegration: true,
      contextIsolation: false,

　　　　引入js文件 读取本地存储
      // preload: path.join(__dirname, 'preload.js'),
    }
  })

 

Preload.js

window.addEventListener('DOMContentLoaded', () => {
    var os = require("os");
    if (os.networkInterfaces().WLAN) {
        sessionStorage.setItem("mac", os.networkInterfaces().WLAN[0].mac)
        // localStorage.setItem("mac")= os.networkInterfaces().WLAN[0].mac
    } else {
        sessionStorage.setItem("mac" , os.networkInterfaces()['以太网'][0].mac)
        // localStorage.setItem("mac") = os.networkInterfaces()['以太网'][0].mac
    }
    sessionStorage.setItem("name" , os.hostname())
    console.log(123456);
    // localStorage.setItem('name') = os.hostname()

    const replaceText = (selector, text) => {
        const element = document.getElementById(selector)
        if (element) element.innerText = text
    }

    for (const type of ['chrome', 'node', 'electron']) {
        replaceText(`${type}-version`, process.versions[type])
    }
})