javascript - Nodejs/puppeteer - 导航超时错误

Question

出现这样的错误后，我可以恢复连接吗

UnhandledPromiseRejectionWarning:    
TimeoutError: Navigation Timeout    
Exceeded: 1000ms exceeded

例子:

 let arg = [] //array with urls
 await page.goto(...args, {waitUntil: 'load', timeout: 1000 }); 

或者唯一的出路是设置超时？

Answer 1

如果你想对 args 数组中的所有 url 进行请求而不停止循环，如果一个将失败。

解决方法如下:

const async = require('async'); // npm i --save async

const urls = [... array of urls ...]; 
const execution = {
  total: urls.length,
  success: 0,
  failed: 0,
  results: []
};

async.eachLimit(
  urls, 
  10, 
  async (url, done) => {
    try {
      const data = await page.goto(url, {waitUntil: 'load', timeout: 1000});
      execution.success++;
      execution.results.push({url, data});
    }
    catch (error) {
      execution.failed++;
      execution.results.push({url, data: null, error: error.message});
    }
    finally {
      done();
    }
  },
  (errors) => {
    console.log('Finished:', execution);
  });