1. const koa = require("koa");
    2. const app = new koa();
    3. const Router = require("koa-router");
    4. const router = new Router();
    5. const cheerio = require("cheerio");
    6. const url = "https://y.qq.com/"
    7. const PCR = require("puppeteer-chromium-resolver");
    8. router.get("/", async ctx => {
    9.     const stats = await PCR();
    10.     const browser = await stats.puppeteer.launch({
    11.         headless: true,
    12.         args: ["--no-sandbox"],
    13.         executablePath: stats.executablePath
    14.     }).catch(function(error) {
    15.         console.log(error);
    16.     });
    17.     const page = await browser.newPage();
    18.     await page.goto(url);
    19.     await page.waitForTimeout(3000)
    20.     var content  =  await page.content();
    21.     // 建议使用puppeteer,cheerio不能爬取动态页面
    22.     var $ = cheerio.load(content,{
    23.         decodeEntities:false
    24.     })
    25.     var slide = $(".mod_slide .mv_list__list:nth-child(1)").html();
    26.     console.log(slide)
    28. })
    29. app.use(router.routes()); 
    30. app.listen(8000)
    1. {
    2.   "name": "bishe",
    3.   "version": "1.0.0",
    4.   "description": "",
    5.   "main": "index.js",
    6.   "scripts": {
    7.     "start": "nodemon index.js"
    8.   },
    9.   "keywords": [],
    10.   "author": "",
    11.   "license": "ISC",
    12.   "dependencies": {
    13.     "axios": "^0.21.1",
    14.     "cheerio": "^1.0.0-rc.5",
    15.     "koa": "^2.13.1",
    16.     "koa-router": "^10.0.0",
    17.     "koa2-cors": "^2.0.6",
    18.     "nodemon": "^2.0.7",
    19.     "puppeteer-chromium-resolver": "^8.0.0"
    20.   }
    21. }