App中的数据可以用网络爬虫抓取么
答案是完全肯定的：凡是可以看到的APP数据都可以抓取。
下面我就介绍下自己的学习经验和一些方法吧 本篇适合有过web爬虫基础的程序猿看
没有的的话学的可能会吃力一些
App接口爬取数据过程
- 使用抓包工具
- 手机使用代理，app所有请求通过抓包工具
- 获得接口，分析接口
- 反编译apk获取key
- 突破反爬限制
需要的工具：
- 夜神模拟器
- Fiddler
- Pycharm
实现过程
首先下载夜神模拟器模拟手机也可以用真机，然后下载Fiddler抓取手机APP数据包，分析接口完成以后使用Python实现爬虫程序
Fiddler安装配置过程
第一步：下载神器Fiddler
Fiddler下载完成之后，傻瓜式的安装一下！
第二步：设置Fiddler
打开Fiddler, Tools-> Fiddler Options (配置完后记得要重启Fiddler)
选中"Decrpt HTTPS traffic", Fiddler就可以截获HTTPS请求
选中"Allow remote computers to connect". 是允许别的机器把HTTP/HTTPS请求发送到Fiddler上来
记住这个端口号是:8888
夜神模拟器安装配置过程
第一步:下载安装
- 夜神模拟器下载完成之后，傻瓜式的安装一下！
第二步:配置桥接 实现互通
- 首先将当前手机网络桥接到本电脑网络 实现互通
安装完成桥接驱动后配置IP地址，要配成和本机互通的网段，配置完成后打开主机cmd终端ping通ok
第三步:配置代理
- 打开主机cmd
2、输入ipconfig查看本机IP
3、配置代理
进入夜神模拟器–打开设置–打开WLAN
点击修改网络–配置代理 如下图：
配置完后保存
到这里我们就设置好所有的值，下面就来测试一下，打开手机的超级课程表APP
4、在夜神模拟器上下载你想爬取得App使用Fiddler抓包分析api后使用python进行爬取就可以了
爬取充电网APP实例
爬取部分内容截图：
部分python代码分享：
import requests
import city
import json
import jsonpath
import re
'''
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'''
city_list = city.jsons
tags_list = city.Tagdef city_func(city_id):try:city = jsonpath.jsonpath(city_list, '$..sub[?(@.code=={})]'.format(int(city_id)))[0]["name"]except:city = jsonpath.jsonpath(city_list, '$[?(@.code=={})]'.format(int(city_id)))[0]["name"]return citydef tags_func(tags_id):tags_join = []if tags_id:for tags in tags_id:t = jsonpath.jsonpath(tags_list,'$..spotFilterTags[?(@.id=={})]'.format(int(tags)))tags_join.append(t[0]["title"])return ('-'.join(tags_join))def split_n(ags):return re.sub('n',' ',ags)def request(page):print('开始下载第%d页'%page)url = 'https://app-api.chargerlink.com/spot/searchSpot'two_url = "https://app-api.chargerlink.com/spot/getSpotDetail?spotId={d}"head = {"device": "client=android&cityName=%E5%8C%97%E4%BA%AC%E5%B8%82&cityCode=110106&lng=116.32154281224254&device_id=8A261C9D60ACEBDED7CD3706C92DD68E&ver=3.7.7&lat=39.895024107858724&network=WIFI&os_version=19","appId": "20171010","timestamp": "1532342711477","signature": "36daaa33e7b0d5d29ac9c64a2ce6c4cf","forcecheck": "1","Content-Type": "application/x-www-form-urlencoded","Content-Length": "68","Host": "app-api.chargerlink.com","Connection": "Keep-Alive","User-Agent": "okhttp/3.2.0"}data = {"userFilter[operateType]": 2,"cityCode": 110000,"sort": 1,"page": page,"limit": 10,}response = requests.post(url,data=data,headers=head)#获取数据data = response.json()for i in data['data']:c = []id = i['id']name = i["name"] #充电桩名phone = i["phone"] #手机号num = i['quantity'] #有几个充电桩city = city_func(i["provinceCode"]) #城市tags =tags_func(i["tags"].split(','))#标签message = c + [id,name,phone,num,city,tags]parse_info(two_url.format(d=id),message)def parse_info(url,message):#打开文件with open('car.csv','a',encoding='utf-8')as c:head = {"device": "client=android&cityName=&cityCode=&lng=116.32154281224254&device_id=8A261C9D60ACEBDED7CD3706C92DD68E&ver=3.7.7&lat=39.895024107858724&network=WIFI&os_version=19","TOKEN": "036c8e24266c9089db50899287a99e65dc3bf95f","appId": "20171010","timestamp": "1532357165598","signature": "734ecec249f86193d6e54449ec5e8ff6","forcecheck": "1","Host": "app-api.chargerlink.com","Connection": "Keep-Alive","User-Agent": "okhttp/3.2.0",}#发起详情请求res = requests.get(url,headers=head)price = split_n(jsonpath.jsonpath(json.loads(res.text),'$..chargingFeeDesc')[0]) #价钱payType = jsonpath.jsonpath(json.loads(res.text),'$..payTypeDesc')[0] #支付方式businessTime =split_n(jsonpath.jsonpath(json.loads(res.text),'$..businessTime')[0]) #营业时间result = (message + [price,payType,businessTime])r = ','.join([str(i) for i in result])+',n'c.write(r)def get_page():url = 'https://app-api.chargerlink.com/spot/searchSpot'head = {"device": "client=android&cityName=%E5%8C%97%E4%BA%AC%E5%B8%82&cityCode=110106&lng=116.32154281224254&device_id=8A261C9D60ACEBDED7CD3706C92DD68E&ver=3.7.7&lat=39.895024107858724&network=WIFI&os_version=19","appId": "20171010","timestamp": "1532342711477","signature": "36daaa33e7b0d5d29ac9c64a2ce6c4cf","forcecheck": "1","Content-Type": "application/x-www-form-urlencoded","Content-Length": "68","Host": "app-api.chargerlink.com","Connection": "Keep-Alive","User-Agent": "okhttp/3.2.0"}data = {"userFilter[operateType]": 2,"cityCode": 110000,"sort": 1,"page": 1,"limit": 10,}response = requests.post(url, data=data, headers=head)# 获取数据data = response.json()total = (data["pager"]["total"])page_Size = (data["pager"]["pageSize"])totalPage = (data['pager']["totalPage"])print('当前共有{total}个充电桩，每页展示{page_Size}个，共{totalPage}页'.format(total=total,page_Size=page_Size,totalPage=totalPage))
if __name__ == '__main__':get_page()start = int(input("亲,请输入您要获取的开始页:"))end = int(input("亲,请输入您要获取的结束页:"))for i in range(start,end+1):request(i)
