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Comments (2)

QdabuliuQ avatar QdabuliuQ commented on August 22, 2024

后端是nodeJS,使用到 puppeteer 这个库,根据前端传入的内容动态生成

browser = await puppeteer.launch({
  args: ['--no-sandbox']
})
page = await browser.newPage()
const content = `
 html 内容写在这里
`
await page.setContent(content)  根据 content 写入页面
const $el = await page.waitForSelector(selector)  需要截屏的dom元素选择器 '#id / .class'
await new Promise((resolve) => {  等待一秒  让他渲染
  setTimeout(() => {
    resolve(true)
  }, wait);
})
await $el.screenshot({
  type: 'png',
  path  写入图片的路径
})

let res = await $el.screenshot({  导出 base64 给前端
  encoding: 'base64'
})

from quickchart.

IIIIIIIIF avatar IIIIIIIIF commented on August 22, 2024

后端是nodeJS,使用到 puppeteer 这个库,根据前端传入的内容动态生成

browser = await puppeteer.launch({
  args: ['--no-sandbox']
})
page = await browser.newPage()
const content = `
 html 内容写在这里
`
await page.setContent(content)  根据 content 写入页面
const $el = await page.waitForSelector(selector)  需要截屏的dom元素选择器 '#id / .class'
await new Promise((resolve) => {  等待一秒  让他渲染
  setTimeout(() => {
    resolve(true)
  }, wait);
})
await $el.screenshot({
  type: 'png',
  path  写入图片的路径
})

let res = await $el.screenshot({  导出 base64 给前端
  encoding: 'base64'
})

好的,谢谢

from quickchart.

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