Django的基本URL，位于Nginx Proxy之后

我有一个简单的Django应用程序，它是在Nginx托pipe的。我正在使用weasyprint来生成PDF报告。 weasyprint需要一个base_url属性来访问static文件。

虽然下面的django代码在本地机器上工作正常（在dev服务器下），但在Nginx后面发布502错误网关错误。

View.py

 html = render_to_string('admin/enquiry/quoterequest/generate.html', {'enquiry': enquiry}) response = HttpResponse(content_type='application/pdf') response['Content-Disposition'] = 'filename=\"Enquiry_{}.pdf'.format(enquiry.reference) weasyprint.HTML(string=html,base_url=request.build_absolute_uri()).write_pdf(response, stylesheets=[ weasyprint.CSS(settings.STATICFILES_DIRS[0] + '/css/print.css')])

上面的代码工作正常（没有打印图像），如果我删除了base_url属性。将不胜感激您的input – 如何设置nginx或从Django回收base_url

Nginxconfiguration

 # configuration of the server server { listen 80; server_name 192.168.33.10; # Vagrant IP root /home/www/my_project; charset utf-8; client_max_body_size 75M; # max upload size location /media { alias /home/www/my_project/assets/uploads; } location /static { alias /home/www/my_project/assets/static; } location / { proxy_pass http://localhost:8001; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; } }

print.css

 @page { size: letter; margin: 1.5in .25in 1.9in .5in; @top-center { content: url("/uploads/header_footer/header.jpg"); height: 100%; width: 100%; } @bottom-center { background-image: url("/uploads/header_footer/footer.jpg"); background-repeat: no-repeat; background-position: center; content: "Page " counter(page); height: 100%; width: 100%; vertical-align: bottom;; } }

这是来自nginx日志的错误信息。

 upstream prematurely closed connection while reading response header from upstream, client: 192.168.33.1, server: 192.168.33.10, request: "GET /enquiry/admin/enquiry/quoterequest/view/1/ HTTP/1.1", upstream: "http://127.0.0.1:8001/enquiry/admin/enquiry/quoterequest/view/1/", host: "192.168.33.10", referrer: "http://192.168.33.10/admin/enquiry/quoterequest/"

回答我自己 – 但这是一种解决方法“。对于这样的IP 192.168.33.10 ，并为它的基地址http://192.168.33.10/media/' base_url parameter for仍然有问题 – 即使手动输入基地址也没有办法。

这仍然不起作用，并返回与502坏网关

 weasyprint.HTML(string=html, base_url='http://192.168.33.10/media/').write_pdf(response)

所以我决定改变template 。所以无论我在哪里定义了一个URL，我都将它们改为…

 <img src="http://{{ request.META.HTTP_HOST }}{{ MEDIA_URL }}{{ myapp.mymodel.my_image }}">

并在View.py添加context_instance以获得MEDIA_URL 。希望有人会为weasyprint的base_url问题提出一个答案。

 html = render_to_string('admin/enquiry/quoterequest/generate.html', {'enquiry': enquiry}, context_instance=RequestContext(request)) response = HttpResponse(content_type='application/pdf') response['Content-Disposition'] = 'filename=\"Enquiry_{}.pdf'.format(enquiry.reference) weasyprint.HTML(string=html,base_url=request.build_absolute_uri()).write_pdf(response, stylesheets=[ weasyprint.CSS(settings.STATICFILES_DIRS[0] + '/css/print.css')])