方法：python-pdfkit将网页（由JS生成）转换为PDF [英] Approach: python-pdfkit convert webpage(JS generated) into PDF

问题描述

views.py

def download_as_pdf(request):
    # some stuff/function call to get updated(with data and JS) template and render it

    return render(request, temp)

def download(request):
    import pdfkit
    pdfkit.from_url('/download/', 'out.pdf', options={'ignore-load-errors': None})
    return HttpResponse('DONE')

urls.py

url(r'^download/', views.download_as_pdf, name="download_pdf")

我想在pdf中打印 / download / url的所有内容（一些图表（JS生成的图表）。如果我输入这两行

I want to print all content(some graphs (JS generated - flotcharts)) of /download/ url in pdf. If I put these two lines

import pdfkit
pdfkit.from_url('/download/', 'out.pdf', options={'ignore-load-errors': None})

在 download_as_pdf 查看它不会以pdf格式打印任何内容（pdf虽然下载但为空）
（我认为是因为这些语句之后发生了模板渲染，这就是为什么？）

in download_as_pdf view it prints nothing in pdf (pdf gets download though but empty) (I think because template rendering happening after these statements thats why ??)

我应该如何继续在pdf中打印图形（我可以通过线程解决此问题吗？如何？）或其他任何方法

how should I proceed to prit graph in pdf (can I solve this by threading? how?) or any other approach

推荐答案

这可能是因为在加载整个javascript之前渲染了pdf。如果您引入了JavaScript延迟，那么它将起作用。

This could be because pdf is rendered before the entire javascript is loaded. If you introduce a javascript delay it will work.

 options = {
    'javascript-delay':'5000'
           }

这篇关于方法：python-pdfkit将网页（由JS生成）转换为PDF的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！