Python实现网页导出PDF

  1. 安装pdfkit、wkhtmltopdf
    参考地址：

    https://jaimegris.wordpress.com/2015/03/04/how-to-install-wkhtmltopdf-in-centos-7-0/
    http://kaito-kidd.com/2015/03/12/python-html2pdf/
    centos安装wkhtmltopdf有一点复杂，参照第一个链接
    为了支持中文，需安装对应字体，参照第二个链接
    安装如果出现错误，可参照这里： http://stackoverflow.com/questions/11425106/python-pip-install-fails-invalid-command-egg-info

  2. 代码

    import pdfkit
......
# html文件里的引用css和js等文件需要用到绝对路径
render_html = render_template("exam_check_preview.html", **locals())
options = {
    'disable-smart-shrinking': '',
    'image-dpi': 100,
    'zoom': 0.52,
    'quiet': ''
}
# 指定wkhtmltopdf路径，用whereis wkhtmltopdf即可获得，不指定会错误IOError: No wkhtmltopdf executable found
config = pdfkit.configuration(wkhtmltopdf="/usr/local/bin/wkhtmltopdf")
pdf = pdfkit.from_string(render_html, False, options=options,
                         configuration=config)
one_file = StringIO()
one_file.write(pdf)
one_file.seek(0)

# 下载pdf
file_name = "example.pdf"
return send_file(one_file, attachment_filename=file_name,
                 as_attachment=True, mimetype="application/pdf")