使用Django和Reportlab从HTML生成PDF

I am coming back with a new question which I am unable to answer, having scratched my head the whole day on it.

我带着一个我无法回答的新问题回来了,整整一天都在我头上划了一刀。

I want to generate a PDF from a webpage by clicking on a "Download PDF" button. I tried several modules including Reportlab and XHTML2PDF but I am not able to generate any pdf nor downloading it... Here is what I did with Reportlab, following Render HTML to PDF in Django site

我想通过点击“下载PDF”按钮从网页生成PDF。我尝试了几个模块,包括Reportlab和XHTML2PDF,但是我无法生成任何pdf,也没有下载它...这是我在Reportlab中做的,在Django网站中将HTML渲染为PDF

-- views.py --

- views.py -

import cStringIO as StringIO
import ho.pisa as pisa
from django.template.loader import get_template
from django.template import Context
from django.http import HttpResponse
from cgi import escape

def index_data(request):
#Code to generate data
     return render(request, "analytics/stat.html", locals())
     return render_to_pdf(
        'analytics/stat.html',
        {
            'pagesize':'A4',
            'mylist': results,
        }
    )

def render_to_pdf(template_src, context_dict):
    template = get_template(template_src)
    context = Context(context_dict)
    html  = template.render(context)
    result = StringIO.StringIO()

    pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("ISO-8859-1")), result)
    if not pdf.err:
        return HttpResponse(result.getvalue(), content_type='application/pdf')
    return HttpResponse('We had some errors<pre>%s</pre>' % escape(html))

-- urls.py --

- urls.py -

from django.conf.urls import include, url
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', include(admin.site.urls)),
    url(r'^$', "analytics.views.main_page", name="main_page"),
    url(r'^portail/$', "analytics.views.index_data", name="index"),
    url(r'^generate_pdf/$', "analytics.views.GroupPDFGenerate.as_view()", name="generate_pdf")

]

-- Template analytics/stat.html --

- 模板分析/ stat.html -

{% extends "analytics/layout.html" %}

{% block title %}
    Audience
{% endblock title %}

{% block head %}
 # Script to generate google charts
{% endblock head %}

{% block body %}
<div class="page-header">
  <h1 align="center"> Audience </h1>
</div>
<div class="row">
  <div class="col-md-1">
      <h3 align="center"><a href="/logout/">Logout</a></h3>
      <h3 align="center"><a href="statistiques.pdf">Download pdf</a></h3>
  </div>
 </div>

{% endblock %}

Also, is there a better module to process ?

此外,还有更好的模块可供处理吗?

3 个解决方案

#1

I'd recommend using wkhtmltopdf.

我建议使用wkhtmltopdf。

The short answer? On Ubuntu, install a binary:

简短的回答?在Ubuntu上,安装二进制文件:

apt-get install wkhtmltopdf

On CentOS / RedHat:

在CentOS / RedHat上:

yum install wkhtmltox-0.12.2.1_linux-centos6-amd64.rpm

Then pip install a Python package:

然后pip安装一个Python包:

pip install pdfkit

Then the code:

那么代码:

import pdfkit

input_filename = 'README.html'
output_filename = 'README.pdf'

with open(input_filename, 'r') as f:
    html_text = f.read()

pdfkit.from_string(html_text, output_filename)

For the long answer and details, I put together a blog post:

对于长篇答案和细节,我整理了一篇博文:

http://www.peregrinesalon.com/blog/2015/06/python-3-django-generating-a-pdf-from-markdown-or-html/

That should take care of the PDF creation; you'll have to decide how you want to handle the download. Good luck!

这应该照顾PDF创建;你必须决定如何处理下载。祝你好运!

#2

If you say you are having problems even generating your PDF, I suggest you start by looking over the example I mentioned in this answer of using Reportlab, xhtml2pdf with django-easy-pdf. Get the PDF to render in the browser first and then move on to getting a link for downloading it.

如果你说你甚至在生成PDF时遇到问题,我建议你首先查看我在使用Reportlab,xhtml2pdf和django-easy-pdf的答案中提到的例子。首先在浏览器中呈现PDF,然后继续获取下载链接。

#3

-2

from easy_pdf.rendering import render_to_pdf

def pdf(request):
    with open('example.pdf', 'wb') as f2:
        f2.write(render_to_pdf('you template', {'user': request.user}, encoding=u'utf-8'))

#1