Question

我正在开发一个Django项目，我们从HTML模板生成PDF文件。我使用django-pdfkit来呈现PDF。

在我的Ubuntu 16.04上一切正常但是当我在DigitalOcean Ubuntu 16.04服务器上部署项目时，它会引发错误：

/ render / doklad / wkhtmltopdf中的IOError以非零代码-6退出。   错误：

QXcbConnection：无法连接到显示

我尝试安装

sudo apt-get install libxrender1 fontconfig xvfb

将WKHTMLTOPDF_BIN变量设置为正确的路径。

将gunicorn用户更改为root。

pip install wkhtmltopdf

没有任何帮助，你知道我能做些什么来解决这个问题吗？

编辑：

我发现如果我以root身份执行此命令，它可以正常工作：

wkhtmltopdf http://www.google.com google.pdf

但问题是我是否使用django用户运行命令。它返回相同的东西：

QXcbConnection: Could not connect to display 
Aborted (core dumped)

所以我尝试更改gunicorn.service所以gunicorn在root而不是django下运行，但它没有帮助。

http://mypage/render/doklad/?id=1

返回相同的错误。

此文件中似乎出现错误：

https://github.com/JazzCore/python-pdfkit/blob/master/pdfkit/pdfkit.py

这是追溯：

Aug 25 04:42:46 homeit-generator-faktur-beta gunicorn[29032]:  - - [25/Aug/2017:04:42:46 +0000] "GET / HTTP/1.0" 302 - "-" "Mozilla/5.0"
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]: Internal Server Error: /render/doklad/
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]: Traceback (most recent call last):
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/django/cor
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     response = get_response(request)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/django/cor
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     response = self.process_exception_by_middleware(e, request)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/django/cor
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     response = wrapped_callback(request, *callback_args, **callback_kwargs)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/django/vie
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     return self.dispatch(request, *args, **kwargs)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/django/vie
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     return handler(request, *args, **kwargs)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/dashboard/views.py", line 186, in get
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     return super(DokladToPdf, self).get(*args, **kwargs)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/django_pd
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     content = self.render_pdf(*args, **kwargs)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/django_pd
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     pdf = pdfkit.from_string(html, False, options, **kwargs)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/pdfkit/ap
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     return r.to_pdf(output_path)
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:   File "/home/django/homeit/homeitvenv/local/lib/python2.7/site-packages/pdfkit/pd
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:     raise IOError("wkhtmltopdf exited with non-zero code {0}. error:\n{1}".format(
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]: IOError: wkhtmltopdf exited with non-zero code -6. error:
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]: QXcbConnection: Could not connect to display
Aug 25 06:05:55 homeit-generator-faktur-beta gunicorn[29032]:  - - [25/Aug/2017:06:05:55 +0000] "GET /render/doklad/?id=1 HTTP/1.0" 500 108058 "

Answer 1

您是否通过xvfb-run运行了您的命令？

在您的通话代码中，您可能需要使用更类似的内容替换wkhtmltopdf的直接通话：

xvfb-run -a -s "-screen 0 1024x768x16" /path/to/bin/wkhtmltopdf

Wkhtmltopdf（pdfkit） - QXcbConnection：无法连接到显示

1 个答案: