如何使用 worker-threads 为 puppeteer 进行多线程处理以实现 web 自动化目的

Question

你好，我正在做一些网络自动化，我想打开运行 puppeteer multithreaded 我的意思是打开同一个页面 10 次，我对我读到的工作线程的理解是最好的解决方案我猜？但我不知道如何正确使用它，我会放一个我所做的示例代码

 const { Worker, isMainThread } = require('worker_threads');
    
    const puppeteer = require('puppeteer') ; 
        let scrapt = async()=>{
        
           
               
                        /* -------------------------------------------------------------------------- */
                        /*                             Launching puppeteer                            */
                        /* -------------------------------------------------------------------------- */
            try{                        
              const browser = await puppeteer.launch({headless: true }) ; 
        
            const page = await browser.newPage();
            await page.setUserAgent(
              `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36`
            );
            let Browser_b = new Date()
              await page.goto('https://www.supremenewyork.com/')
            let browser_e = new Date()
            console.log(browser_e - Browser_b)
    }
    catch(e){
        console.log(e)
    }
let ex = [1,2,3,4]
if (isMainThread) {
    // This re-loads the current file inside a Worker instance.asdasd
    new Worker(__filename);
  } else {
    for(let val of ex) {
      scrapt();

    }
  }

这个脚本打开了 4 个浏览器，但是如果我打开更多的 PC 滞后很多因为我认为它只使用一个线程而不是全部使用它们？提前谢谢你，对不起我的愚蠢

Answer 1

曾经尝试过使用集群吗？这是 multi_processing 的好方法并且比 worker_threads 更容易使用在我看来这是来自 HERE

的示例

const cluster = require('cluster');
const http = require('http');
const numCPUs = require('os').cpus().length;

if (cluster.isMaster) {
  console.log(`Master ${process.pid} is running`);

  // Fork workers.
  for (let i = 0; i < numCPUs; i++) {
    cluster.fork();
  }

  cluster.on('exit', (worker, code, signal) => {
    console.log(`worker ${worker.process.pid} died`);
  });
} else {
  // Workers can share any TCP connection
  // In this case it is an HTTP server
  http.createServer((req, res) => {
    res.writeHead(200);
    res.end('hello world\n');
  }).listen(8000);

  console.log(`Worker ${process.pid} started`);
}

如何使用 worker-threads 为 puppeteer 进行多线程处理以实现 web 自动化目的

how to go multithreaded for puppeteer using worker-threads for web-automation purpose

node.js

multithreading

puppeteer

webautomation

node-worker-threads