如何在Puppeteer中重新加载页面？ [英] How to reload page in Puppeteer?

问题描述

我想在页面无法正确加载或遇到问题时重新加载页面。我尝试了 page.reload（），但是它不起作用。

I would like to reload the page whenever the page doesn't load properly or encounters a problem. I tried page.reload() but it doesn't work.

for(const sect of sections ){

            // Now collect all the URLs
            const appUrls = await page.$$eval('div.main > ul.app-list > li > div.app-info a.app-info-icon', links => links.map(link => link.href));

            // Visit each URL one by one and collect the data
            for (let appUrl of appUrls) {
                var count = i++;
                try{
                    await page.goto(appUrl);
                    const appName = await page.$eval('div.det-name-int', div => div.innerText.trim());
                    console.log('\n' + count);
                    console.log(appName);
                } catch(e){
                    console.log('\n' + count);
                    console.log('ERROR', e);
                    await page.reload();
                }

            }

        }

它给了我这个错误：

    ERROR Error: Error: failed to find element matching selector "div.det-name-int"
    at ElementHandle.$eval (C:\Users\Administrator\node_modules\puppeteer\lib\JS
Handle.js:418:13)
    at process._tickCallback (internal/process/next_tick.js:68:7)
  -- ASYNC --
    at ElementHandle.<anonymous> (C:\Users\Administrator\node_modules\puppeteer\
lib\helper.js:108:27)
    at DOMWorld.$eval (C:\Users\Administrator\node_modules\puppeteer\lib\DOMWorl
d.js:149:21)
    at process._tickCallback (internal/process/next_tick.js:68:7)
  -- ASYNC --
    at Frame.<anonymous> (C:\Users\Administrator\node_modules\puppeteer\lib\help
er.js:108:27)
    at Page.$eval (C:\Users\Administrator\node_modules\puppeteer\lib\Page.js:329
:29)
    at Page.<anonymous> (C:\Users\Administrator\node_modules\puppeteer\lib\helpe
r.js:109:23)
    at main (C:\Users\Administrator\Desktop\webscrape\text.js:35:43)
    at process._tickCallback (internal/process/next_tick.js:68:7)

某些链接无法成功加载。当我手动刷新这些页面时，它可以工作。因此，我希望有一个函数或方法可以帮助我在出现错误时自动重新加载页面。

Some links are unable to load successfully. When I refresh those pages manually, it works. So I hope there is a function or a method that can help me reload my page automatically when there is an error.

推荐答案

I

for (let appUrl of appUrls) {
    var count = i++;

    while(true){
        try{

            await page.goto(appUrl);

            const appName = await page.$eval('div.det-name-int', div => div.innerText.trim());

            console.log('\n' + count);
            console.log('Name: ' , appName);

            break;

            } catch(e){
              console.log('\n' + count);
              console.log('ERROR');
              await page.reload(appUrl);

              continue;
            }

}

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