python 富文本编辑器内容导出为pdf

Posted 2020-11-28 robertzhou

将富文本内容导出为pdf

class CourseMaterialExportPdfAPIView(generics.GenericAPIView):

    permission_classes = (IsAuthenticatedOrHasOpenid,)

    def get(self, request, *args, **kwargs):

        pk = kwargs.get(‘pk‘)

        try:

            material = CourseMaterial.objects.get(id=pk)

            content = material.content
            
            import re
			
            # 处理视频内容，因为不能展示视频，所以将视频的html代码转换为视频内容和连接
            pattern = re.compile(r‘<video.*?>‘)

            video_list = pattern.findall(content)

            sub_dic = dict()

            for video_tem_code in video_list:

                res = re.search(‘src=(.*?) ‘, video_tem_code)

                url = res.group(1)

                repl = ‘<p>视频内容地址：%s</p>‘ % url

                sub_dic[video_tem_code] = repl

            for string, repl in sub_dic.items():

                content = content.replace(string, repl)
			
            # 需要安装xhtml2pdf模块  pip install
            from xhtml2pdf import pisa
			# 处理汉字乱码问题
            from xhtml2pdf.default import DEFAULT_FONT
            
            DEFAULT_FONT[‘helvetica‘] = ‘yh‘
			
            #导出，直接下载pdf
            response = HttpResponse(content_type=‘application/pdf‘)
            response[‘Content-Disposition‘] = ‘attachment; filename=%s.pdf‘ % material.name
			
            #content为富文本的内容， response为保存生成的pdf的地方
            pisa.CreatePDF(StringIO(content), response)

            return response

        except CourseMaterial.DoesNotExist:

            return Response({‘status‘: 0, ‘error‘: ‘活动不存在‘})