flask operate pdf

flask_pdf.py

from reportlab.pdfgen import canvas
from io import BytesIO
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttfonts import TTFont

# 采用微软雅黑字体
def some_view():
    pdfmetrics.registerFont(TTFont('msyh', os.path.join(veteransApp.config['PROJECT_DIR'], '../msyh.ttf')))
    # Create the PDF object, using the response object as its "file."
    buffer = BytesIO()
    p = canvas.Canvas(buffer)
    p.setFont("msyh", 12)

    p.drawString(100, 100, u"Hello world 测试中文.")

    # Close the PDF object cleanly, and we're done.
    p.showPage()
    p.save()

    pdf = buffer.getvalue()
    buffer.close()

    resp = make_response(pdf)
    resp.headers['Content-Disposition'] = 'attachment; filename=report.pdf'
    resp.headers["Content-type"] = "application/pdf"
    return resp