我想下载使用Puppeteer在Google上搜索的图像。但是,单击图像按钮后,$.eval
下面的功能不起作用。它说failed to find element matching selector div[jsname="I4bIT"]
。我想知道是否使用$$.eval
单击某些内容来更改页面实例?预先非常感谢。
async function findAndDownloadImage(page, elem = 'hello') {
try {
await page.goto(`https://www.google.com/search?q=${elem}+expression`);
await page.$$eval('.HF9Klc.iJddsb', elem => elem[1].click()); //click picture button
await page.$eval('div[jsname="I4bIT"]', clickAction); //click tool button
await page.$eval('div[aria-label="大小"]', clickAction); //click sizeButton
await page.$eval('a[aria-label="大"]', clickAction); //click largeOption
await page.$eval('.rg_i.Q4LuWd', clickAction); //click 1st image
} catch (e) {
console.log(e)
}
}
答案 0 :(得分:0)
您需要在第一次单击后等待,直到图像搜索选项卡的元素加载到DOM中。可以使用page.waitForSelector
:
await page.$$eval('.HF9Klc.iJddsb', elem => elem[1].click()); //click picture button
await page.waitForSelector('div[jsname="I4bIT"]'); //wait for image-search tab loaded v1
await page.$eval('div[jsname="I4bIT"]', clickAction); //click tool button
...
await page.$$eval('.HF9Klc.iJddsb', elem => elem[1].click()); //click picture button
await page.waitForNavigation(); //wait for image-search tab loaded v2
await page.$eval('div[jsname="I4bIT"]', clickAction); //click tool button
...