Comments (2)
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.
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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