编写你的视图¶
FileResponse
下面是一个“你好世界”的例子:
import io from django.http import FileResponse from reportlab.pdfgen import canvas def some_view(request): # Create a file-like buffer to receive PDF data. buffer = io.BytesIO() # Create the PDF object, using the buffer as its "file." p = canvas.Canvas(buffer) # Draw things on the PDF. Here's where the PDF generation happens. # See the ReportLab documentation for the full list of functionality. p.drawString(100, 100, "Hello world.") # Close the PDF object cleanly, and we're done. p.showPage() p.save() # FileResponse sets the Content-Disposition header so that browsers # present the option to save the file. buffer.seek(0) return FileResponse(buffer, as_attachment=True, filename='hello.pdf')
代码和注释应该是不言自明的,但有几点值得一提:
as_attachment=TrueFileResponseContent-Dispositionas_attachmentfilenamecanvas.CanvasFileResponsepbuffershowPage()save()
备注
ReportLab不是线程安全的。我们的一些用户报告了构建生成django视图的PDF时出现的一些奇怪问题,这些视图可同时被许多人访问。