electron下载文件

const http = require('http');
const https = require('https');
const fs = require('fs');
const { URL } = require('url');
const path = require('path');// 下载文件函数
function downloadFile(url, savePath) {return new Promise((resolve, reject) => {try {console.log(`开始下载: ${url}`);console.log(`保存路径: ${savePath}`);const parsedUrl = new URL(url);const protocol = parsedUrl.protocol === 'https:' ? https : http;// 创建保存目录（如果不存在）const saveDir = path.dirname(savePath);fs.mkdirSync(saveDir, { recursive: true });const fileStream = fs.createWriteStream(savePath);const request = protocol.get(url, (response) => {if (response.statusCode !== 200) {reject(new Error(`HTTP错误，状态码: ${response.statusCode}`));return;}const totalBytes = parseInt(response.headers['content-length'], 10) || 0;let receivedBytes = 0;response.on('data', (chunk) => {receivedBytes += chunk.length;const progress = totalBytes > 0 ? (receivedBytes / totalBytes) * 100 : 0;console.log(`下载进度: ${progress.toFixed(2)}%`);});response.on('end', () => {fileStream.end();console.log('下载完成');resolve(savePath);});response.on('error', (error) => {console.error('响应流错误:', error);fileStream.destroy();reject(error);});// 将响应数据管道传输到文件流response.pipe(fileStream);});request.on('error', (error) => {console.error('请求错误:', error);fileStream.destroy();reject(error);});request.on('timeout', () => {console.error('请求超时');request.destroy();fileStream.destroy();reject(new Error('请求超时'));});// 设置超时时间（30秒）request.setTimeout(30000);request.end();} catch (error) {console.error('下载过程中发生异常:', error);reject(error);}});
}// 检查更新并下载
async function checkAndDownloadUpdate() {try {console.log('检测更新...');const updateUrl = "http://dade.dddxxxx.com/app/dade.zip";// 使用当前目录下的downloads文件夹作为保存位置const savePath = path.join(__dirname, 'downloads', 'dade.zip');await downloadFile(updateUrl, savePath);console.log('更新下载成功！');// 这里可以添加下载完成后的处理逻辑，如解压文件等} catch (error) {console.error('更新检查或下载失败:', error);// 可以在这里添加重试逻辑或通知用户}
}// 立即执行一次检查
checkAndDownloadUpdate();// 如果需要定时检查，可以取消下面的注释
// setInterval(checkAndDownloadUpdate, 60 * 60 * 1000); // 每小时检查一次

完整代码

const { app, BrowserWindow, Tray, Menu, nativeImage } = require('electron');
const path = require('path');
// 引入文件
const { start } = require(path.join(__dirname, 'electron/start.js'));
const { mysql } = require(path.join(__dirname, 'electron/mysql.js'));
const { setWin } = require(path.join(__dirname, 'electron/win.js'));
const { starts } = require(path.join(__dirname, 'electron/server.js'));
const { my } = require(path.join(__dirname, 'electron/my.js'));// 单实例检查,如何打开过一个了，不用打开多个
const getTheLock = app.requestSingleInstanceLock();
if (!getTheLock) {app.quit();return;
}else{app.on('second-instance', (event, commandLine, workingDirectory) => {if (!win || win.isDestroyed()) {createWindow();} else {if (win.isMinimized()) {win.restore();}win.show();win.focus();}});
}let win;
// 定义窗口关闭事件的回调函数，方便后续移除
const handleWindowClose = (e) => {// 点击关闭，隐藏所有窗口e.preventDefault();win.hide();
};
// 存放main.js的路径
let electronPage = __dirnamefunction createWindow() {win = new BrowserWindow({width: 400,height: 550,autoHideMenuBar: true, // 自动隐藏菜单resizable: false, // 禁止窗口调整大小title:"AI智能APP",webPreferences: {nodeIntegration: true,contextIsolation: false,enableRemoteModule: true},});// 生产环境加载打包后的index.htmlwin.loadFile(path.join(__dirname, 'dist/index.html'));// 访问服务，打包环境和开发环境都可以用// win.loadURL('http://127.0.0.1:8600/#/');// 监听窗口关闭事件，阻止默认关闭行为win.on('close', handleWindowClose);// 启动start(win,electronPage);// mysqlmysql(win,electronPage)// win窗口setWin()// 连接数据库my(win,electronPage)}const http = require('http');
const https = require('https');
const fs = require('fs');
const { URL } = require('url');
// 监听更新
function winUpdate(){// 每次执行完后重新设置定时器try {// 获取当前时间并格式化为易读的字符串// const now = new Date();// const timeString = now.toLocaleString();// console.log(`当前时间: ${timeString}`);// // 记录内存使用情况（可选）// const memoryUsage = process.memoryUsage();// console.log(`内存使用: ${Math.round(memoryUsage.heapUsed / 1024 / 1024)} MB`);console.log('检测更新...');checkAndDownloadUpdate()}catch(error) {console.error('定时任务出错:', error);}finally {// 无论如何都继续下一次执行// setTimeout(winUpdate, 1000);}
} 
winUpdate()// 下载文件函数
function downloadFile(url, savePath) {return new Promise((resolve, reject) => {try {console.log(`开始下载: ${url}`);console.log(`保存路径: ${savePath}`);const parsedUrl = new URL(url);const protocol = parsedUrl.protocol === 'https:' ? https : http;// 创建保存目录（如果不存在）const saveDir = path.dirname(savePath);fs.mkdirSync(saveDir, { recursive: true });const fileStream = fs.createWriteStream(savePath);const request = protocol.get(url, (response) => {if (response.statusCode !== 200) {reject(new Error(`HTTP错误，状态码: ${response.statusCode}`));return;}const totalBytes = parseInt(response.headers['content-length'], 10) || 0;let receivedBytes = 0;response.on('data', (chunk) => {receivedBytes += chunk.length;const progress = totalBytes > 0 ? (receivedBytes / totalBytes) * 100 : 0;// console.log(`下载进度: ${progress.toFixed(2)}%`);});response.on('end', () => {fileStream.end();console.log('下载完成');resolve(savePath);});response.on('error', (error) => {console.error('响应流错误:', error);fileStream.destroy();reject(error);});// 将响应数据管道传输到文件流response.pipe(fileStream);});request.on('error', (error) => {console.error('请求错误:', error);fileStream.destroy();reject(error);});request.on('timeout', () => {console.error('请求超时');request.destroy();fileStream.destroy();reject(new Error('请求超时'));});// 设置超时时间（6分钟）request.setTimeout(360000);request.end();} catch (error) {console.error('下载过程中发生异常:', error);reject(error);}});}// 检查更新并下载
async function checkAndDownloadUpdate() {try {console.log('检测更新...');const updateUrl = "http://dade.dddxxxx.com/app/dade.zip";// 使用当前目录下的downloads文件夹作为保存位置const savePath = path.join(__dirname, '', 'dade.zip');await downloadFile(updateUrl, savePath);console.log('更新下载成功！');// 这里可以添加下载完成后的处理逻辑，如解压文件等} catch (error) {console.error('更新检查或下载失败:', error);// 可以在这里添加重试逻辑或通知用户}
}// 启动
let tray;
app.whenReady().then(() => {createWindow();// 加入右下角// const icon = nativeImage.createFromPath('images/log.png');const icon = nativeImage.createFromPath(path.join(__dirname, 'images/log.png'));tray = new Tray(icon);const contextMenu = Menu.buildFromTemplate([{label: '打开窗口',click: () => {if (!win || win.isDestroyed()) {createWindow();} else {win.show();win.focus();}}},{label: '退出应用',click: () => {if (win &&!win.isDestroyed()) {// 移除关闭事件监听器，避免阻止关闭win.removeListener('close', handleWindowClose);win.close();}app.quit();}}]);tray.setContextMenu(contextMenu);// 为托盘添加点击事件监听器tray.on('click', () => {if (!win || win.isDestroyed()) {createWindow();} else {win.show();win.focus();}});tray.setToolTip('沛基AI');tray.setTitle('沛基AI');// 其它console.log("启动啦");app.on('activate', function () {if (BrowserWindow.getAllWindows().length === 0) createWindow();});
});// 窗口关闭事件
app.on('window-all-closed', function () {console.log("关闭啊");// 直接关闭// if (process.platform!== 'darwin') app.quit();
});