Django 导出 Excel 代码的实例详解


Posted in Python onAugust 11, 2017

这篇技术贴讲怎样在Django的框架下导出Excel, 最开始打算用ajax post data 过去,但是发现不行,所以改用了get的方式。如果只有一个id(pk)那用get的方式很简单就可以访问对应的view section,但是如果是多个ids,我用的是session,大家还有其他好的例子吗?希望一起讨论。

Python3.5 Django 1.10, sqlite3, windows 10

1. virtualenv export_excel  <--- create a virtualenv for django

Django 导出 Excel 代码的实例详解

2. cd export_excel   <--- Go into the export_excel folder

3. Script\active <--- activate env environment.

Django 导出 Excel 代码的实例详解

once activate the environment, in the windows would be liked as above.

4. pip install django.

5. pip install django-bootstrap3. <-- bootstrap3 for django.

6. pip install xlsxwriter.  <-- this uses for excel export.(用xlsxwriter 这个Python 库)

1. urls.py

"""export_excel URL Configuration 
 
 
The `urlpatterns` list routes URLs to views. For more information please see: 
  https://docs.djangoproject.com/en/1.10/topics/http/urls/ 
Examples: 
Function views 
  1. Add an import: from my_app import views 
  2. Add a URL to urlpatterns: url(r'^$', views.home, name='home') 
Class-based views 
  1. Add an import: from other_app.views import Home 
  2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home') 
Including another URLconf 
  1. Import the include() function: from django.conf.urls import url, include 
  2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls')) 
""" 
from django.conf.urls import url 
from django.contrib import admin 
from django.views.generic import ListView 
 
 
from .models import ExcelDemoData 
from . import views 
 
 
urlpatterns = [ 
  url(r'^admin/', admin.site.urls), 
  url(r'^$', ListView.as_view(queryset = ExcelDemoData.objects.all().defer('id', 'part_number').order_by('id')[:100], template_name="part_num_list.html"), name = 'home'), 
  url(r'^demo/exportall/$', views.export_all_to_excel, name = 'export_all_to_excel'), 
]

2. views.py

from django.http import JsonResponse, Http404 
from django.shortcuts import render, get_object_or_404, render_to_response  
from django.http import HttpResponseRedirect 
from django.contrib import messages 
from django.core.urlresolvers import reverse 
from django.http import HttpResponse 
 
from .models import ExcelDemoData 
from .forms import ExcelDemoForm 
from .excel_utils import WriteToExcel 
 
from . import attrs_override as attr 
 
     
def export_sig_to_excel(request, pk): 
 
  if request.method == 'GET': 
    demo_list = [] 
    try: 
      demo_row = ExcelDemoData.objects.get(pk = pk) 
    except ExcelDemoData.DoesNotExist: 
      messages.add_message(request, messages.ERROR, 'the Part Number: [%s] does not exist in database.' % str(pk)) 
    else:   
      demo_list.append(demo_row) 
        
    response = HttpResponse(content_type='application/ms-excel') 
    response['Content-Disposition'] = 'attachment; filename=ExcelDemoData_%s.xlsx' % demo_row.demo_row_part_number  
    xlsx_data = WriteToExcel(demo_list) 
    response.write(xlsx_data) 
    return response 
         
         
def export_all_to_excel(request): 
  if request.method == 'GET': 
    if 'store_modi_id' in request.session: 
       messages.add_message(request, messages.ERROR, 'The Part Number have been lost, please re-search them.') 
       return HttpResponseRedirect(reverse('home')) 
       
    demo_list = [] 
    pn_id_list = request.session['searched_sb_list'] #<--- the session will be created when a list page was created. 
    for id in pn_id_list: 
      try: 
        demo_row = ExcelDemoData.objects.get(pk = id) 
      except SmartBuy.DoesNotExist: 
        messages.add_message(request, messages.ERROR, 'the Part Number does not exist in database.' ) 
      else:   
        demo_list.append(demo_row) 
        
    response = HttpResponse(content_type='application/ms-excel') 
    response['Content-Disposition'] = 'attachment; filename=ExcelDemoData_%s.xlsx' % attr.get_current_timestamp()  
    xlsx_data = WriteToExcel(demo_list) 
    response.write(xlsx_data) 
    return response

3. models.py

from django.db import models 
 
# Create your models here. 
class ExcelDemoData(models.Model): 
   
  # ---- this is ExcelDemoData scope ----  
  demo_qty = models.PositiveIntegerField(blank = True, null=True) 
  demo_part_number = models.CharField(max_length = 20, blank = True, null=True) # smart buy part number cannot be empty. 
  demo_nonfio_sku = models.CharField(max_length = 200, blank = True, null=True) 
  demo_desc = models.CharField(max_length = 500, blank = True, null=True) 
  demo_cost = models.DecimalField(max_digits=15, decimal_places=2, blank = True, null=True) 
  demo_ex_cost = models.DecimalField(max_digits=15, decimal_places=2, blank = True, null=True) 
  demo_msrp = models.DecimalField(max_digits=15, decimal_places=2, blank = True, null=True) 
  demo_ex_msrp = models.DecimalField(max_digits=15, decimal_places=2, blank = True, null=True) 
   
   
  def __str__(self): 
    return str(self.pk) + ' Part Number: ' + self.demo_part_number

4. forms.py

from django import forms 
from django.utils.translation import ugettext_lazy as _ 
from .models import ExcelDemoData 
 
from .attrs_override import * 
 
  
class ExcelDemoForm(forms.ModelForm): 
    
  class Meta: 
    model = <span style="font-family: Arial, Helvetica, sans-serif;">ExcelDemoData</span> 
     
    widgets = { 
      # ----- Smart ------ 
      'demo_qty': forms.NumberInput(attrs = {'class': INPUT_CSS}), 
      'demo_part_number': forms.TextInput(attrs = {'class': INPUT_CSS}), 
      'demo_nonfio_sku': forms.TextInput(attrs = {'class': INPUT_CSS}), 
      'demo_desc': forms.TextInput(attrs = {'class': SELECT_CSS}), 
      'demo_cost': forms.TextInput(attrs = {'class': INPUT_CSS}), 
      'demo_ex_cost': forms.TextInput(attrs = {'class': INPUT_CSS}), 
      'demo_msrp': forms.TextInput(attrs = {'class': INPUT_CSS}), 
      'demo_ex_msrp': forms.TextInput(attrs = {'class': INPUT_CSS}), 
    } 
     
    labels = { 
      # ----- Smart ------ 
      'demo_qty': _(DEMO_TXT + ' ' + QTY_TXT), 
      'demo_part_number': _(DEMO_TXT + ' ' + PART_NUM_TXT), 
      'demo_nonfio_sku': _(DEMO_TXT + ' ' + NONFIO_SKU), 
      'demo_desc': _(DEMO_TXT + ' ' + DESC_TXT), 
      'demo_cost': _(DEMO_TXT + ' ' + COST_TXT), 
      'demo_ex_cost': _(DEMO_TXT + ' ' + EX_COST_TXT), 
      'demo_msrp': _(DEMO_TXT + ' ' + MSRP_TXT), 
      'demo_ex_msrp': _(DEMO_TXT + ' ' + EX_MSRP_TXT), 
       
 
    } 
     
    exclude = []

5. excel_utils.py

try: 
  from BytesIO import BytesIO 
except ImportError: 
  from io import BytesIO 
   
import xlsxwriter 
from django.utils.translation import ugettext as _ 
 
 
from .models import ExcelDemoData 
from .attrs_override import * 
 
 
 
 
def WriteToExcel(demo_list): 
   
  output = BytesIO() 
  workbook = xlsxwriter.Workbook(output) 
  worksheet_s = workbook.add_worksheet('Smart Buy') 
  worksheet_b = workbook.add_worksheet('Part Number List') 
   
  # excel styles 
  title = workbook.add_format({ 
    'bold': True, 
    'font_size': 14, 
    'align': 'center', 
    'valign': 'vcenter' 
  }) 
  header = workbook.add_format({ 
    'bg_color': '#F7F7F7', 
    'color': 'black', 
    'align': 'center', 
    'valign': 'top', 
    'border': 1 
  }) 
   
  bold_header = workbook.add_format({ 
    'bold': True, 
    'bg_color': '#F7F7F7', 
    'color': 'black', 
    'align': 'center', 
    'valign': 'top', 
    'border': 1 
  }) 
   
  cell = workbook.add_format({ 
    'align': 'left', 
    'valign': 'top', 
    'text_wrap': True, 
    'border': 1 
  }) 
   
  bold_cell = workbook.add_format({ 
    'bold': True, 
    'align': 'left', 
    'valign': 'top', 
    'text_wrap': True, 
    'border': 1 
  }) 
   
  cell_center = workbook.add_format({ 
    'align': 'center', 
    'valign': 'top', 
    'border': 1 
  }) 
   
  # write header, this is row 1 in excel 
  worksheet_s.write(0, 0, _(HEADER_ITEM_TXT), header) 
  worksheet_s.write(0, 1, _(QTY_TXT), header) 
  worksheet_s.write(0, 2, _(PART_NUM_TXT), header) 
  worksheet_s.write(0, 3, _(NONFIO_SKU), header) 
  worksheet_s.write(0, 4, _(DESC_TXT), header) 
  worksheet_s.write(0, 5, _(COST_TXT), header) 
  worksheet_s.write(0, 6, _(EX_COST_TXT), header) 
  worksheet_s.write(0, 7, _(MSRP_TXT), bold_header) 
  worksheet_s.write(0, 8, _(EX_MSRP_TXT), header) 
   
  # column widths  
  item_name_col_width = 20 
  qty_col_width = 10 
  part_num_col_width = 20 
  nonfio_sku_col_width = 30 
  desc_col_width = 80 
  cost_col_width = 10 
  ex_cost_col_width= 10 
  msrp_col_width = 10 
  ex_msrp_col_width = 10 
   
  # add data into the table 
  data_row = 1 
  second_sheet_data_row = 0 
  for sb in demo_list: 
     
    if data_row is not 1: 
      for index in range(9): 
        worksheet_s.write(data_row, index, '', cell) 
      data_row += 1 
     
    # this is for smartbuy row, row 2 in excel 
    worksheet_s.write_string(data_row, 0, _(SMART_BUY_TXT), cell) 
    if not sb.demo_qty:  
      sb.demo_qty = '' 
    worksheet_s.write(data_row, 1, sb.demo_qty, cell) 
    if not sb.demo_part_number: 
      sb.demo_part_number = ''  
    worksheet_s.write_string(data_row, 2, sb.demo_part_number, bold_cell) 
    worksheet_b.write_string(second_sheet_data_row, 0, sb.demo_part_number, cell) 
    second_sheet_data_row += 1 
    if not sb.demo_nonfio_sku: 
       sb.demo_nonfio_sku = '' 
    worksheet_s.write_string(data_row, 3, sb.demo_nonfio_sku, cell) 
    if not sb.demo_desc: 
      sb.demo_desc = ''  
    worksheet_s.write_string(data_row, 4, sb.demo_desc, cell) 
    if not sb.demo_cost:  
      sb.demo_cost = '' 
    worksheet_s.write(data_row, 5, sb.demo_cost, cell) 
    if not sb.demo_ex_cost:  
      sb.demo_ex_cost = '' 
    worksheet_s.write(data_row, 6, sb.demo_ex_cost, cell) 
    if not sb.demo_msrp:  
      sb.demo_msrp = '' 
    worksheet_s.write(data_row, 7, sb.demo_msrp, bold_cell) 
    if not sb.demo_ex_msrp: 
       sb.demo_ex_msrp = '' 
    worksheet_s.write(data_row, 8, sb.demo_ex_msrp, cell) 
     
 
 
    # for each smart buy data end <<<------ 
     
    # change column widths 
    if sb.demo_qty: worksheet_s.set_column('A:A', item_name_col_width) 
    if sb.demo_qty: worksheet_s.set_column('B:B', qty_col_width) 
    if sb.demo_qty: worksheet_s.set_column('C:C', part_num_col_width) 
    if sb.demo_qty: worksheet_s.set_column('D:D', nonfio_sku_col_width) 
    if sb.demo_qty: worksheet_s.set_column('E:E', desc_col_width) 
    if sb.demo_qty: worksheet_s.set_column('F:F', cost_col_width) 
    if sb.demo_qty: worksheet_s.set_column('G:G', ex_cost_col_width) 
    if sb.demo_qty: worksheet_s.set_column('H:H', msrp_col_width) 
    if sb.demo_qty: worksheet_s.set_column('I:I', ex_msrp_col_width) 
     
    # for each smart buy data end <<<------ 
     
    # change column widths 
    worksheet_s.set_column('A:A', item_name_col_width) 
    worksheet_s.set_column('B:B', qty_col_width) 
    worksheet_s.set_column('C:C', part_num_col_width) 
    worksheet_b.set_column('A:A', part_num_col_width) 
    worksheet_s.set_column('D:D', nonfio_sku_col_width) 
    worksheet_s.set_column('E:E', desc_col_width) 
    worksheet_s.set_column('F:F', cost_col_width) 
    worksheet_s.set_column('G:G', ex_cost_col_width) 
    worksheet_s.set_column('H:H', msrp_col_width) 
    worksheet_s.set_column('I:I', ex_msrp_col_width) 
     
  # close workbook 
  workbook.close() 
  xlsx_data = output.getvalue() 
  return xlsx_data

6. html

{% extends "base.html" %} 
 
{% block content %} 
 
<div id="form_body" style="margin:20px;"> 
  <table class="table"> 
    <tr> 
      <td style="float: left"><a href="{% url 'home' %}" rel="external nofollow" class="btn btn-primary" role="button">Back</a></td> 
      <td style="float: right"> 
        {% if export_all %} 
      <a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" class="btn btn-primary" role="button" data-loading-text="<i class='fa fa-circle-o-notch fa-spin'></i> Processing Export..." id="export_all_excel_a" onclick="javascript: getExportExcels('all');">Export All to Excel</a> 
      {% endif %}</td> 
    </tr> 
  </table> 
  </div> 
  <div class="table-responsive"> 
  <table class="table table-bordered usr_def_tbl"> 
    <thead class="thead-inverse"> 
      <tr style="font-size:14px; text-align: center;"> 
       <th> </th> 
       <th>Qty</th> 
       <th>Part Number</th> 
       <th>NonFIO SKU</th> 
       <th>Description</th> 
       <th>Cost</th> 
       <th>Ex.Cost</th> 
       <th>MSRP</th> 
       <th>ex.MSRP</th> 
      </tr> 
    </thead> 
    <tbody> 
      {% for s in demo_list %} 
       
      <!-- this is demo list sections --> 
      <tr> 
        <td>Demo</td> 
        <td>{% if s.demo_qty %}{{ s.demo_qty }}{% endif %} </td> 
        <td>{% if s.demo_part_number %}{{ s.demo_part_number }}{% endif %} </td> 
        <td>{% if s.demo_nonfio_sku %}{{ s.demo_nonfio_sku }}{% endif %} </td> 
        <td>{% if s.demo_desc %}{{ s.demo_desc }}{% endif %} </td> 
        <td>{% if s.demo_cost %}{{ s.demo_cost }}{% endif %} </td> 
        <td>{% if s.demo_ex_cost %}{{ s.demo_ex_cost }}{% endif %} </td> 
        <td>{% if s.demo_msrp %}{{ s.demo_msrp }}{% endif %} </td> 
        <td>{% if s.demo_ex_msrp %}{{ s.demo_ex_msrp }}{% endif %}</td> 
      </tr> 
      <tr> 
        <td colspan="7"></td> 
         <td style="text-align:right"> 
          <a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" class="btn btn-primary part_num_flag" role="button" onclick="javascript: getExportExcels('{{ s.pk }}');" data-loading-text="<i class='fa fa-circle-o-notch fa-spin'></i> Processing Export..." id="sgl_export_{{ s.pk }}" >Export to Excel</a> 
        </td> 
        <td style="text-align:right"> 
          <a href="{% url 'demo_edit_id' pk=s.pk%}" rel="external nofollow" class="btn btn-primary" role="button" value="{{ s.pk }}">Edit</a> 
        </td> 
      </tr> 
      {% endfor %} 
    </tbody> 
     
  <p></p> 
  </table> 
   
</div> 
 
<script type="text/javascript"> 
function getExportExcels(pn_id){ 
  if(pn_id == 'all'){ 
    var post_url = '/demo/exportall/'; 
    location.replace(post_url); 
  } 
  else{ 
    var post_url = '/demo/export/'; 
    location.replace(post_url + pn_id); 
  } 
}  
 
</script> 
{% endblock content %}

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木。

Python 相关文章推荐
使用BeautifulSoup爬虫程序获取百度搜索结果的标题和url示例
Jan 19 Python
跟老齐学Python之关于循环的小伎俩
Oct 02 Python
Python三元运算实现方法
Jan 12 Python
将Python的Django框架与认证系统整合的方法
Jul 24 Python
对python .txt文件读取及数据处理方法总结
Apr 23 Python
pygame实现打字游戏
Feb 19 Python
使用 Supervisor 监控 Python3 进程方式
Dec 05 Python
Python3 把一个列表按指定数目分成多个列表的方式
Dec 25 Python
python实现高斯投影正反算方式
Jan 17 Python
Python matplotlib读取excel数据并用for循环画多个子图subplot操作
Jul 14 Python
Pycharm及python安装详细教程(图解)
Jul 31 Python
python-jwt用户认证食用教学的实现方法
Jan 19 Python
python技能之数据导出excel的实例代码
Aug 11 #Python
利用标准库fractions模块让Python支持分数类型的方法详解
Aug 11 #Python
Python对字符串实现去重操作的方法示例
Aug 11 #Python
python中模块查找的原理与方法详解
Aug 11 #Python
python利用lxml读写xml格式的文件
Aug 10 #Python
Python编程实现及时获取新邮件的方法示例
Aug 10 #Python
Python中函数eval和ast.literal_eval的区别详解
Aug 10 #Python
You might like
ThinkPhP+Apache+PHPstorm整合框架流程图解
2020/11/23 PHP
DOM Scripting中的图片切换[兼容Firefox]
2010/06/12 Javascript
在IE和VB中支持png图片透明效果的实现方法(vb源码打包)
2011/04/01 Javascript
js实现连续英文字符自动换行兼容ie6 ie7和firefox
2013/09/06 Javascript
在页面中js获取光标/鼠标的坐标及光标的像素坐标
2013/11/11 Javascript
nodejs中使用monk访问mongodb
2014/07/06 NodeJs
判断字符串的长度(优化版)中文占两个字符
2014/10/30 Javascript
javascript实现在线客服效果
2015/07/15 Javascript
javascript获取wx.config内部字段解决微信分享
2016/03/09 Javascript
JavaScript使用Range调色及透明度实例
2016/09/25 Javascript
详解Angular.js的$q.defer()服务异步处理
2016/11/06 Javascript
canvas学习之API整理笔记(一)
2016/12/29 Javascript
vue.js学习笔记之v-bind和v-on解析
2018/05/03 Javascript
Javascript中绑定click事件的四种方式介绍
2018/10/26 Javascript
详解如何用webpack4从零开始构建react开发环境
2019/01/27 Javascript
解决微信小程序中转换时间格式IOS不兼容的问题
2019/02/15 Javascript
使用layui的router来进行传参的实现方法
2019/09/06 Javascript
[00:34]DOTA2上海特级锦标赛 VG战队宣传片
2016/03/04 DOTA
django模型中的字段和model名显示为中文小技巧分享
2014/11/18 Python
python虚拟环境迁移方法
2019/01/03 Python
python tkinter实现界面切换的示例代码
2019/06/14 Python
PyQt5显示GIF图片的方法
2019/06/17 Python
解决os.path.isdir() 判断文件夹却返回false的问题
2019/11/29 Python
keras:model.compile损失函数的用法
2020/07/01 Python
keras实现VGG16方式(预测一张图片)
2020/07/07 Python
利用CSS3把图片变成灰色模式的实例代码
2016/09/06 HTML / CSS
代码中finally中的代码会不会执行
2012/02/06 面试题
《蒙娜丽莎之约》教学反思
2014/02/27 职场文书
班组长岗位职责
2014/03/03 职场文书
期末学生评语大全
2014/04/24 职场文书
龙猫观后感
2015/06/09 职场文书
同意落户证明
2015/06/19 职场文书
公司环境卫生管理制度
2015/08/05 职场文书
导游词之苏州阳澄湖
2019/11/15 职场文书
详解Python小数据池和代码块缓存机制
2021/04/07 Python
使用feign服务调用添加Header参数
2021/06/23 Java/Android