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puppeteer-demo's Introduction

puppeteer-demo

前言

刚刚学了点puppeteer,于是就迫不及待写了个小demo来练练手

做了什么

要实现的思路是

  • 随机访问列表里的url
  • 随机ip地址
  • 随机uesr-agent
  • 随机refer
  • 访问之后模拟点击到另一页面

既然要随机那肯定得用随机数

  function randoms(m, n) {
      return parseInt(Math.random() * (n - m) + m,10)
  }

这样就能生成m-n的随机整数了

接下来就是ip,需要用到代理ip

  function getIp() {
      return new Promise((resolve, reject) => {
          axios.get('接口').end((err, res) => {
              if (err) {
                  resolve('127.0.0.1:1080')
              } else {
                  resolve(res.text)
              }
          })
      })
  }

接下来就是puppeteer了

  #安装依赖 很大哦
  cnpm install puppeteer --save

简单的用法


    const puppeteer = require('puppeteer');
    
    (async () => {
    //实例化一个浏览器
    const browser = await puppeteer.launch();
    //浏览器新建一个页面
    const page = await browser.newPage();
    //访问https://example.com
    await page.goto('https://example.com');
    //页面截图 保存
    await page.screenshot({path: 'example.png'});
    //关闭浏览器
    await browser.close();
    })();


一些其他的配置参见

我的博客地址

接下来就是设置代理ip和随机referer

#把代理ip放在args里就可以了
const browser = await puppeteer.launch({
    headless: true,
    //`--proxy-server=http://${ip}`,'--no-sandbox', '--disable-setuid-sandbox'
    args: [`--proxy-server=http://${ip}`],
    devtools: true
});
const page = await browser.newPage();
await page.setUserAgent(ua);
await page.setExtraHTTPHeaders({
    referer: `${refer}`
});

进行访问,并设置超时,然后模拟点击,点击之后检测到执行完成大功告成

    await page.goto(`${url}`, { timeout: 60000 });
    const btn = await page.$(`#colophon > div > div.footer-device > p > span > a:nth-child(1)`);
    await btn.click();
    await page.waitForSelector('#centerbg > div > h1', { timeout: 60000 })

这就是简单的使用puteer 最最重要的是百度统计会增加流量

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