Python生成报表

Posted 2022-03-17 liuweiqc

1. excel

   def export_teachers_excel(request):
    # 创建工作簿
    wb = xlwt.Workbook()
    # 添加工作表
    sheet = wb.add_sheet('老师信息表')
    # 查询所有老师的信息(注意：这个地方稍后需要优化)
    queryset = Teacher.objects.all()
    # 向Excel表单中写入表头
    colnames = ('姓名', '介绍', '好评数', '差评数', '学科')
    for index, name in enumerate(colnames):
        sheet.write(0, index, name)
    # 向单元格中写入老师的数据
    props = ('name', 'detail', 'good_count', 'bad_count', 'subject')
    for row, teacher in enumerate(queryset):
        for col, prop in enumerate(props):
            value = getattr(teacher, prop, '')
            if isinstance(value, Subject):
                value = value.name
            sheet.write(row + 1, col, value)
    # 保存Excel
    buffer = BytesIO()
    wb.save(buffer)
    # 将二进制数据写入响应的消息体中并设置MIME类型
    resp = HttpResponse(buffer.getvalue(), content_type='application/vnd.ms-excel')
    # 中文文件名需要处理成百分号编码
    filename = quote('老师.xls')
    # 通过响应头告知浏览器下载该文件以及对应的文件名
    resp['content-disposition'] = f'attachment; filename="filename"'
    return resp