Python中Cookies导出某站用户数据的方法

应朋友需要，想将某客户的数据从某站里导出，先去某站搞个账号，建几条数据观察一番，心里有底后开搞。

1.Python环境搭建

之前电脑有安装过PyCharm Community 2019.1，具体安装过程就不写了，先跑个HelloWorld，输出正常后正式开整。

2.利用抓包工具或者Google浏览器调试模式拿到请求参数

Cookies参数如下：

cookies = {    
    'JSESSIONID': 'XXX',
    'phone': 'XXX',    
    'password': 'XXX',    
    'isAuto': '0',    '
    loginAccess': 'XXX'
}

headers请求头信息构造：

headers = {    
'Connection': 'keep-alive',    
'sec-ch-ua': '"Google Chrome";v="89", "Chromium";v="89", ";Not A Brand";v="99"',   
'Accept': 'application/json, text/javascript, */*; q=0.01',    'X-Requested-With': 'XMLHttpRequest',    'sec-ch-ua-mobile': '?0',    
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) 
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 
Safari/537.36',    
'Content-Type': 'application/json',   
'Sec-Fetch-Site': 'same-origin',    
'Sec-Fetch-Mode': 'cors',    
'Sec-Fetch-Dest': 'empty',    
'Referer': 'https://xxx.xxx.xxx',    
'Accept-Language': 'zh-CN,zh;q=0.9',}

请求路径：

params = ( ('method', 'getGoodsList'))

请求参数组装：

data = '{
"pageSize":1000,
"pageNumber":1,
"searchText":"",
"sortOrder":"asc",
"isAdvancedSearch":false}'

pageSize：每页数据数量
pageNumber：页码
searchText：搜索条件
sortOrder：排序

3.利用Requests模拟请求并获取数据

response = requests.post(
   'https://xxx.xxx.xxx', 
    headers=headers,
    params=params, 
    cookies=cookies,
    data=data
)
print(response.text.encode('utf8'))
res = json.loads(response.text)

4.创建Excel表格

t = time.time()
randStr = int(round(t * 1000))
tSheetName = "a_" + str(randStr) + ".xlsx"
workbook = xlsxwriter.Workbook(tSheetName)
worksheet = workbook.add_worksheet()

5.表头及数据组装

cursor = 0
picurl = ''
writeExcel(row=cursor)
for obj in res["rows"]:    
    cursor += 1    
    picurl = ''   
    if obj['ImageKID']:        
        picurl = 'https://xxx.xxx.xxx? imageKid='+obj['ImageKID']    
    writeExcel(row=cursor,Description=obj['Description'], Category=obj['Category'], 		 		  Series=obj['Series'],BaseUnit=obj['BaseUnit'],Qty=obj['Qty'],
    CostPrice=obj['CostPrice'],SalePrice=obj['SalePrice'],                    
   RetailPrice=obj['RetailPrice'],Barcode=obj['Barcode'],
   Remark=obj['Remark'], ImageKID=picurl)

6.将数据写入Excel表格中

def writeExcel(row=0, Description='', Category='', Series='', BaseUnit='', Qty='', CostPrice='', SalePrice='', RetailPrice='', Barcode='', Remark='',ImageKID=''):   
	if row == 0:        
		worksheet.write(row, 0, '名称')        
		worksheet.write(row, 1, '货号')        
		worksheet.write(row, 2, '规格')        
		worksheet.write(row, 3, '单位')        
		worksheet.write(row, 4, '库存')        
		worksheet.write(row, 5, '成本')        
		worksheet.write(row, 6, '批发价')        
		worksheet.write(row, 7, '零售价')       
		worksheet.write(row, 8, '条码')        
		worksheet.write(row, 9, '备注')        
		worksheet.write(row, 10, '图片')        
	else:        
   		 if ImageKID!='':            
        		image_data = io.BytesIO(urllib.urlopen(ImageKID).read())            
        		worksheet.insert_image(row, 10, ImageKID, {'image_data': image_data})        
		worksheet.write(row, 0, Description)        
		worksheet.write(row, 1, Category)        
		worksheet.write(row, 2, Series)       
		worksheet.write(row, 3, BaseUnit)        
		worksheet.write(row, 4, Qty)        
		worksheet.write(row, 5, CostPrice)       
		worksheet.write(row, 6, SalePrice)       
		worksheet.write(row, 7, RetailPrice)       
		worksheet.write(row, 8, Barcode)        
		worksheet.write(row, 9, Remark)        
		worksheet.set_column(10, 10, 23)        
		worksheet.set_row(row, 150)

注意图片路径不存在的情况，否则会执行异常

write方法：

def write(self, row, col, *args):
        """
        Write data to a worksheet cell by calling the appropriate write_*()
        method based on the type of data being passed.

        Args:
            row:   The cell row (zero indexed).
            col:   The cell column (zero indexed).
            *args: Args to pass to sub functions.

        Returns:
             0:    Success.
            -1:    Row or column is out of worksheet bounds.
            other: Return value of called method.

        """
        return self._write(row, col, *args)

通过set_row方法设置表格行高

def set_row(self, row, height=None, cell_format=None, options=None):
        """
        Set the width, and other properties of a row.

        Args:
            row:         Row number (zero-indexed).
            height:      Row height. (optional).
            cell_format: Row cell_format. (optional).
            options:     Dict of options such as hidden, level and collapsed.

        Returns:
            0:  Success.
            -1: Row number is out of worksheet bounds.
		......
        """

通过set_column方法设置图片列宽度：

def set_column(self, first_col, last_col, width=None, cell_format=None,
                   options=None):
        """
        Set the width, and other properties of a single column or a
        range of columns.

        Args:
            first_col:   First column (zero-indexed).
            last_col:    Last column (zero-indexed). Can be same as first_col.
            width:       Column width. (optional).
            cell_format: Column cell_format. (optional).
            options:     Dict of options such as hidden and level.

        Returns:
            0:  Success.
            -1: Column number is out of worksheet bounds.
      ......

        """

通过insert_image插入网络图片：

def insert_image(self, row, col, filename, options=None):
        """
        Insert an image with its top-left corner in a worksheet cell.

        Args:
            row:      The cell row (zero indexed).
            col:      The cell column (zero indexed).
            filename: Path and filename for image in PNG, JPG or BMP format.
            options:  Position, scale, url and data stream of the image.

        Returns:
            0:  Success.
            -1: Row or column is out of worksheet bounds.

        """
        # Check insert (row, col) without storing.
        if self._check_dimensions(row, col, True, True):
            warn('Cannot insert image at (%d, %d).' % (row, col))
            return -1

        if options is None:
            options = {}

        x_offset = options.get('x_offset', 0)
        y_offset = options.get('y_offset', 0)
        x_scale = options.get('x_scale', 1)
        y_scale = options.get('y_scale', 1)
        url = options.get('url', None)
        tip = options.get('tip', None)
        anchor = options.get('object_position', 2)
        image_data = options.get('image_data', None)
        description = options.get('description', None)
        decorative = options.get('decorative', False)

        # For backward compatibility with older parameter name.
        anchor = options.get('positioning', anchor)

        if not image_data and not os.path.exists(filename):
            warn("Image file '%s' not found." % force_unicode(filename))
            return -1

        self.images.append([row, col, filename, x_offset, y_offset,
                            x_scale, y_scale, url, tip, anchor, image_data,
                            description, decorative])
        return 0

注意insert_image(row, colunmNum, ‘xx.png', {‘url': xxx}）并不能插入网络图片，只是给本地图片一个url路径

7.关闭表格

workbook.close()

8.附引入的包

# -*- coding: UTF-8 -*-
# 批量获取XX数据
import io
import json 
import requests
import sys
import xlsxwriter
import time
import urllib

9.代码跑起来

在看下Excel表格中导出的信息

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