前言
是这样的，之前接了一个金主的单子，他想在淘宝开个小鱼零食的网店，想对目前这个市场上的商品做一些分析，本来手动去做统计和分析也是可以的，这些信息都是对外展示的，只是手动比较麻烦，所以想托我去帮个忙。
一、 项目要求：
具体的要求如下：
1.在淘宝搜索“小鱼零食”，想知道前10页搜索结果的所有商品的销量和金额，按照他划定好的价格区间来统计数量，给我划分了如下的一张价格区间表：
2.这10页搜索结果中，商家都是分布在全国的哪些位置？
3.这10页的商品下面，用户评论最多的是什么？
4.从这些搜索结果中，找出销量最多的10家店铺名字和店铺链接。
从这些要求来看，其实这些需求也不难实现，我们先来看一下项目的效果。
二、效果预览
获取到数据之后做了下分析，最终做成了柱状图，鼠标移动可以看出具体的商品数量。
在10~30元之间的商品最多，越往后越少，看来大多数的产品都是定位为低端市场。
然后我们再来看一下全国商家的分布情况：
可以看出，商家分布大多都是在沿海和长江中下游附近，其中以沿海地区最为密集。
三、爬虫源码
由于源码分了几个源文件，还是比较长的，所以这里就不跟大家一一讲解了，懂爬虫的人看几遍就看懂了，不懂爬虫的说再多也是云里雾里，等以后学会了爬虫再来看就懂了。
3.1点击获取请求key和secret地址
3.2请求代码示例,支持高并发请求（CURL、PHP 、PHPsdk 、Java 、C# 、Python…)
# coding:utf-8
"""
Compatible for python2.x and python3.x
requirement: pip install requests
"""
from __future__ import print_function
import requests
# 请求示例 url 默认请求参数已经做URL编码
url = "https://wx19970108018/taobao/item_search/?key=<您自己的apiKey>&secret=<您自己的apiSecret>&q=女装&start_price=0&end_price=0&page=1&cat=0&discount_only=&sort=&page_size=&seller_info=&nick=&ppath=&imgid=&filter="
headers = {
"Accept-Encoding": "gzip",
"Connection": "close"
}
if __name__ == "__main__":
r = requests.get(url, headers=headers)
json_obj = r.json()
print(json_obj)
3.3响应示例
{
"items": {
"page": "1",
"real_total_results": 326348000,
"total_results":326345100,
"page_size": 40,
"pagecount": 815870,
"data_from": "hid",
"item": [
{
"title": "【小鱼】上脚超舒适的经典款平底鞋 SF女鞋 蝴蝶结单鞋漆皮结婚鞋",
"pic_url": "https://img.alicdn.com/imgextra/i3/O1CN01l3hGlF24e7WhMs6gx_!!2960437415.jpg",
"promotion_price": "288.00",
"price": "888.00",
"sales": 10,
"num_iid": "648682556542",
"seller_nick": null,
"seller_id": "0",
"detail_url": "https://item.taobao.com/item.htm?id=648682556542",
"data_f": "mz",
"data_update": "2021-10-21 22:41:26"
},
{
"title": "四洲 粟一烧香脆粟米条85g*3桶 烧烤味/香辣味/龙虾味 膨化 零食",
"pic_url": "https://img.alicdn.com/bao/uploaded/i1/2953395609/O1CN014pSqIp1rIyDnoKE98_!!2953395609.png",
"promotion_price": "27.60",
"price": "27.60",
"sales": 12,
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"seller_nick": "常乐百货",
"seller_id": "0",
"detail_url": "https://item.taobao.com/item.htm?id=600485873570",
"data_f": "mz",
"data_update": "2021-10-23 14:59:48"
},
{
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"data_update": "2021-11-03 06:45:47"
},
{
"title": "megahouse 迷你塑料玩具 食玩 超市系列 外国输入 零食 10号 S01",
"pic_url": "https://img.alicdn.com/imgextra/i3/O1CN01fyQDsg1kXREmCJjso_!!62214693.jpg",
"promotion_price": "158.00",
"price": "158.00",
"sales": 0,
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"detail_url": "https://item.taobao.com/item.htm?id=587593868197",
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},
{
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"promotion_price": "1.48",
"price": "1.50",
"sales": 1950000,
"num_iid": "522934430387",
"seller_nick": "味芝元旗舰店",
"seller_id": "2633580514",
"detail_url": "https://item.taobao.com/item.htm?id=522934430387",
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},
{
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"promotion_price": "2.50",
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},
{
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},
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